/* ============================================================
   OPUS 2 — Graphite Stone Design System
   ПКП АСТРА · Металлообработка · Орёл
   Palette: Warm Stone + Deep Navy + Warm Brass
   ============================================================ */

/* ---------- Design Tokens ---------- */
:root {
  /* Stone palette (light backgrounds) */
  --o2-bg:   #f6f3ee;
  --o2-bg-2: #ede9e2;
  --o2-bg-3: #e2ddd5;
  --o2-surface: #ffffff;

  /* Text on light */
  --o2-ink:      #1a1712;
  --o2-ink-2:    #38302a;
  --o2-muted:    #7a7268;
  --o2-line:         rgba(26,23,18,0.10);
  --o2-line-strong:  rgba(26,23,18,0.18);

  /* Accent */
  --o2-navy:   #1c3260;
  --o2-navy-2: #274580;
  --o2-link:   #1c3260;
  --o2-brass:  #b8882c;
  --o2-brass-2:#d4a845;

  /* Dark sections */
  --o2-dark:   #0f1218;
  --o2-dark-2: #161c26;
  --o2-dark-3: #1f2636;

  /* Text on dark */
  --o2-on-dark:       #f0ece3;
  --o2-on-dark-2:     #c0b8a8;
  --o2-on-dark-muted: #807870;
  --o2-dark-line:         rgba(240,236,227,0.09);
  --o2-dark-line-strong:  rgba(240,236,227,0.16);

  /* Typography */
  --o2-f-display: "Syne", system-ui, sans-serif;
  --o2-f-body:    "IBM Plex Sans", system-ui, sans-serif;

  /* Layout */
  --o2-wrap:   min(1240px, calc(100% - clamp(1.25rem, 5.5vw, 4.5rem)));
  --o2-nav-h:  clamp(84px, 10.5vw, 118px);
  --o2-radius: 4px;
  --o2-radius-lg: 14px;
  --o2-ease: cubic-bezier(0.22, 1, 0.36, 1);

  color-scheme: light;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
img  { display: block; max-width: 100%; height: auto; }
a    { color: inherit; text-decoration: none; -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; text-wrap: balance; }
p    { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

html {
  scroll-behavior: smooth;
  background: var(--o2-bg);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  /* адаптив под ширину экрана: телефоны → мониторы */
  font-size: clamp(15px, 0.35vw + 14px, 17px);
}

body.opus2 {
  margin: 0;
  font-family: var(--o2-f-body);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--o2-ink);
  background: var(--o2-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

/* Screen-reader skip */
.o2-skip {
  position: absolute; left: -999px; z-index: 9999;
  background: var(--o2-navy); color: #fff;
  padding: 0.5rem 1.2rem; border-radius: 0 0 var(--o2-radius-lg) var(--o2-radius-lg);
}
.o2-skip:focus { left: 1rem; }

/* Utility wrap */
.o2-wrap { width: var(--o2-wrap); margin-inline: auto; }

/* ============================================================
   TYPOGRAPHY HELPERS
   ============================================================ */
.o2-eyebrow {
  font-family: var(--o2-f-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--o2-brass);
  margin: 0 0 0.85rem;
}
.o2-eyebrow--dim   { color: var(--o2-muted); }
.o2-eyebrow--light { color: var(--o2-brass-2); }

/* ============================================================
   SCROLL PROGRESS + NAVIGATION (glass from first paint)
   ============================================================ */
.o2-scroll-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 120;
  height: 2px;
  pointer-events: none;
  background: transparent;
}
.o2-scroll-progress span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #c62828, #e53935);
  transition: width 0.08s linear;
}

.o2-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--o2-nav-h);
  display: flex;
  align-items: center;
  overflow: visible;
  /* сразу стекло — логотип сразу цветной, без смены white→color */
  background: rgba(246, 243, 238, 0.58);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  box-shadow: 0 1px 0 rgba(28, 50, 96, 0.06);
  transition:
    background 0.35s var(--o2-ease),
    box-shadow 0.35s var(--o2-ease);
}
.o2-nav.is-solid {
  background: rgba(246, 243, 238, 0.94);
  backdrop-filter: blur(22px) saturate(1.15);
  -webkit-backdrop-filter: blur(22px) saturate(1.15);
  box-shadow: 0 1px 0 var(--o2-line), 0 8px 28px rgba(28, 50, 96, 0.06);
}

.o2-nav__inner {
  width: var(--o2-wrap);
  margin-inline: auto;
  display: grid;
  grid-template-columns: auto 1fr auto auto auto;
  align-items: center;
  gap: 1rem 1.25rem;
}

.o2-brand {
  position: relative;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  overflow: visible;
}
.o2-brand__img {
  height: calc(102px * var(--o2-logo-scale, 1));
  width: auto;
  max-height: calc(var(--o2-nav-h) - 2px);
  transform: translate(var(--o2-logo-tx, 0px), var(--o2-logo-ty, 2px));
  transform-origin: left center;
  image-rendering: auto;
  /* финальный цвет логотипа из PNG — без CSS-фильтра */
  filter: none !important;
  opacity: 0.98;
  transition: height 0.15s ease, transform 0.12s ease;
}

/* Десктоп 1x: мелкая строка в PNG мылится при даунскейле — чуть крупнее + резкость как на Retina-мобиле */
@media (min-width: 981px) {
  .o2-brand__img {
    height: calc(114px * var(--o2-logo-scale, 1));
    image-rendering: -webkit-optimize-contrast;
    filter: contrast(1.14) saturate(1.03) !important;
  }
  .o2-footer__brand .o2-brand__img {
    height: calc(114px * var(--o2-logo-scale, 1));
    filter: contrast(1.14) saturate(1.03) !important;
  }
}

/* Desktop nav links — тёмные сразу (под стеклянную шапку) */
.o2-nav__links {
  display: flex;
  gap: 2rem;
  justify-content: center;
}
.o2-nav__links a {
  font-family: var(--o2-f-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--o2-ink-2);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.18s, border-color 0.18s;
}
.o2-nav__links a:hover { color: var(--o2-navy); border-color: var(--o2-navy); }
.o2-nav.is-solid .o2-nav__links a { color: var(--o2-ink-2); }
.o2-nav.is-solid .o2-nav__links a:hover { color: var(--o2-navy); border-color: var(--o2-navy); }

/* Nav right: phone + CTA */
.o2-nav__end {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.o2-nav__phone {
  font-family: var(--o2-f-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--o2-ink-2);
  transition: color 0.18s;
  white-space: nowrap;
}
.o2-nav__phone:hover { color: var(--o2-navy); }
.o2-nav.is-solid .o2-nav__phone { color: var(--o2-ink-2); }
.o2-nav.is-solid .o2-nav__phone:hover { color: var(--o2-navy); }

/* Burger button */
.o2-burger {
  display: none;
  background: none;
  border: 0;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--o2-ink-2);
  transition: color 0.18s;
  flex-direction: column;
  gap: 5px;
}
.o2-burger:focus-visible { outline: 2px solid var(--o2-brass); outline-offset: 2px; }
.o2-nav.is-solid .o2-burger { color: var(--o2-ink-2); }
.o2-burger__bar {
  display: block;
  width: 22px; height: 2px;
  background: currentColor;
  transition: transform 0.28s var(--o2-ease), opacity 0.18s;
  transform-origin: center;
}
.o2-burger[aria-expanded="true"] .o2-burger__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.o2-burger[aria-expanded="true"] .o2-burger__bar:nth-child(2) { opacity: 0; }
.o2-burger[aria-expanded="true"] .o2-burger__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile drawer overlay */
.o2-drawer {
  position: fixed;
  inset: 0;
  z-index: 99; /* ниже .o2-nav (100), чтобы бургер/тема оставались кликабельны */
  background: rgba(18, 22, 32, 0.92);
  backdrop-filter: blur(18px) saturate(1.1);
  -webkit-backdrop-filter: blur(18px) saturate(1.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  justify-content: safe center;
  /* под шапку и нижний dock — иначе пункты уезжают под бар и «наезжают» */
  padding:
    calc(var(--o2-nav-h) + 0.75rem)
    1.25rem
    calc(5rem + env(safe-area-inset-bottom, 0px));
  gap: clamp(0.85rem, 2.8vh, 2rem);
  box-sizing: border-box;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition:
    opacity 0.32s var(--o2-ease),
    visibility 0.32s,
    transform 0.32s var(--o2-ease);
  touch-action: pan-y;
  overscroll-behavior: contain;
}
.o2-drawer.is-open { opacity: 1; visibility: visible; transform: none; }
.o2-drawer.is-swiping { transition: none; }
.o2-drawer__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  gap: clamp(0.45rem, 1.6vh, 1.1rem);
}
.o2-drawer__links a {
  font-family: var(--o2-f-display);
  /* vh — на низкой высоте (планшет landscape) не раздуваем шрифт до 2.4rem */
  font-size: clamp(1.35rem, 4.2vh, 1.95rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.2;
  flex-shrink: 0;
  color: var(--o2-on-dark);
  transition: color 0.15s;
}
.o2-drawer__links a:hover { color: var(--o2-brass-2); }
.o2-drawer__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  flex-shrink: 0;
  width: min(100%, 22rem);
}
.o2-drawer__phone {
  font-size: 1.1rem; font-weight: 700;
  color: var(--o2-on-dark-2);
  flex-shrink: 0;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.o2-btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center; gap: 0.45rem;
  padding: 0.78rem 1.7rem;
  border-radius: var(--o2-radius-lg);
  font-family: var(--o2-f-display);
  font-size: 0.84rem; font-weight: 700;
  letter-spacing: 0.04em; text-transform: uppercase;
  cursor: pointer; border: none;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s, transform 0.12s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  white-space: nowrap;
  isolation: isolate;
}
.o2-btn:active { transform: scale(0.97); }
.o2-ripple {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  transform: scale(0);
  background: rgba(255, 255, 255, 0.35);
  animation: o2-ripple-wave 0.55s ease-out forwards;
  z-index: 0;
}
.o2-btn > *:not(.o2-ripple) { position: relative; z-index: 1; }
@keyframes o2-ripple-wave {
  to { transform: scale(2.6); opacity: 0; }
}

.o2-btn--brass {
  background: var(--o2-brass);
  color: #fff;
  box-shadow: 0 8px 28px rgba(184,136,44,0.3);
}
.o2-btn--brass:hover { background: var(--o2-brass-2); box-shadow: 0 12px 36px rgba(184,136,44,0.42); }

.o2-btn--navy { background: var(--o2-navy); color: #fff; }
.o2-btn--navy:hover { background: var(--o2-navy-2); }

.o2-btn--outline {
  background: transparent; color: var(--o2-on-dark);
  border: 1.5px solid rgba(240,236,227,0.28);
}
.o2-btn--outline:hover {
  border-color: rgba(240,236,227,0.65);
  background: rgba(240,236,227,0.06);
}

.o2-btn--ghost {
  background: transparent;
  color: var(--o2-on-dark-2);
  border: 1.5px solid var(--o2-dark-line-strong);
}
.o2-btn--ghost:hover {
  border-color: rgba(240,236,227,0.4);
  color: var(--o2-on-dark);
}

.o2-btn--sm { padding: 0.52rem 1.2rem; font-size: 0.76rem; }

/* ============================================================
   HERO
   ============================================================ */
.o2-hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
}

.o2-hero__media {
  position: absolute; inset: 0; z-index: 0;
}
.o2-hero__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.o2-hero__veil {
  position: absolute; inset: 0; z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg,
      rgba(8,10,18,0.28)  0%,
      rgba(8,10,18,0.10)  30%,
      rgba(8,10,18,0.55)  65%,
      rgba(8,10,18,0.94) 100%);
}
.o2-hero > .fx-sparks {
  position: absolute;
  inset: auto;
  z-index: 4;
  pointer-events: none;
}

.o2-hero__body {
  position: relative; z-index: 3;
  width: var(--o2-wrap);
  margin-inline: auto;
  padding-bottom: clamp(2rem, 4vw, 3.5rem);
  padding-top: calc(var(--o2-nav-h) + 4rem);
  max-width: 900px;
  margin-right: auto;
}

.o2-hero__kicker {
  font-family: var(--o2-f-display);
  font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: #f6f1e8;
  text-shadow: 0 1px 2px rgba(8, 10, 18, 0.75), 0 0 16px rgba(8, 10, 18, 0.45);
  display: flex; align-items: center; gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.o2-hero__kicker::before {
  content: "";
  display: block; width: 28px; height: 1px;
  background: var(--o2-brass-2);
  box-shadow: 0 0 8px rgba(8, 10, 18, 0.35);
  flex-shrink: 0;
}

.o2-hero h1 {
  font-family: var(--o2-f-display);
  font-size: clamp(2.8rem, 7.5vw, 6.5rem);
  font-weight: 800;
  letter-spacing: -0.04em; line-height: 0.96;
  color: var(--o2-on-dark);
  margin-bottom: 1.4rem;
  max-width: 14ch;
}
.o2-hero h1 em {
  font-style: normal;
  color: var(--o2-brass-2);
}

.o2-hero__lead {
  font-size: clamp(0.98rem, 1.7vw, 1.18rem);
  line-height: 1.6;
  color: var(--o2-on-dark);
  text-shadow: 0 1px 2px rgba(8, 10, 18, 0.55), 0 0 18px rgba(8, 10, 18, 0.35);
  max-width: 52ch;
  margin-bottom: 2rem;
}

.o2-hero__actions {
  display: flex; gap: 0.85rem; flex-wrap: wrap;
}

/* Mobile: кнопки CTA ниже зоны «центра экрана под пальцем» при скролле */
@media (max-width: 900px) {
  .o2-hero {
    justify-content: flex-start;
  }
  .o2-hero__body {
    padding-top: calc(var(--o2-nav-h) + 1.25rem);
    padding-bottom: 1.25rem;
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
  }
  .o2-hero__actions {
    margin-top: auto;
    padding-top: 1.75rem;
    padding-bottom: max(1.25rem, env(safe-area-inset-bottom));
    position: relative;
    z-index: 3;
  }
  .o2-hero__stats {
    margin-top: 0;
  }
}

/* Stats ribbon */
.o2-hero__stats {
  position: relative; z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(240,236,227,0.11);
  background: rgba(8,10,18,0.48);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 1.1rem clamp(1.25rem, 5.5vw, 4.5rem);
  gap: 0.5rem;
}
.o2-stat {
  padding: 0.6rem 0.75rem;
  border-right: 1px solid rgba(240,236,227,0.1);
}
.o2-stat:last-child { border-right: none; }
.o2-stat strong {
  display: block;
  font-family: var(--o2-f-display);
  font-size: clamp(1.3rem, 2.8vw, 1.9rem);
  font-weight: 800; letter-spacing: -0.04em; line-height: 1;
  color: var(--o2-on-dark);
  margin-bottom: 0.2rem;
}
.o2-stat span {
  font-size: 0.74rem;
  color: var(--o2-on-dark-2);
  letter-spacing: 0.02em;
  line-height: 1.3;
}

/* ============================================================
   TICKER
   ============================================================ */
.o2-ticker {
  overflow: hidden;
  background: var(--o2-dark-2);
  border-bottom: 1px solid var(--o2-dark-line);
  padding: 0.85rem 0;
  user-select: none;
}
.o2-ticker__track {
  display: flex; gap: 2.5rem;
  white-space: nowrap;
  animation: o2-tick 26s linear infinite;
  will-change: transform;
}
@keyframes o2-tick {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
.o2-ticker__track span {
  font-family: var(--o2-f-display);
  font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--o2-on-dark-muted);
  flex-shrink: 0;
}
.o2-ticker__track i {
  font-style: normal;
  color: var(--o2-brass);
  flex-shrink: 0;
}

/* ============================================================
   SECTION BASE
   ============================================================ */
.o2-section { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.o2-section--light  { background: var(--o2-bg); }
.o2-section--alt    { background: var(--o2-bg-2); }
.o2-section--dark   { background: var(--o2-dark);   color: var(--o2-on-dark); }
.o2-section--dark-2 { background: var(--o2-dark-2); color: var(--o2-on-dark); }
.o2-section--navy   { background: var(--o2-navy);   color: #fff; }

/* Section header */
.o2-head { margin-bottom: clamp(2rem, 4.5vw, 3.5rem); }
.o2-head h2 {
  font-family: var(--o2-f-display);
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  font-weight: 800; letter-spacing: -0.035em; line-height: 1.08;
}
.o2-head > p {
  font-size: 1rem; color: var(--o2-muted);
  max-width: 55ch; margin-top: 0.6rem; line-height: 1.6;
}
.o2-section--dark .o2-head > p,
.o2-section--dark-2 .o2-head > p { color: var(--o2-on-dark-2); }
.o2-head--row {
  display: flex; align-items: flex-end;
  justify-content: space-between; gap: 2rem;
}

/* ============================================================
   SERVICES — Interactive List
   ============================================================ */
.o2-services { border-top: 1px solid var(--o2-line-strong); }

.o2-svc-row {
  border-bottom: 1px solid var(--o2-line);
  transition: background 0.22s;
}
.o2-svc-row:hover { background: var(--o2-bg-2); }

.o2-svc-row__inner {
  display: grid;
  grid-template-columns: 3.2rem 1fr auto 200px;
  align-items: center;
  gap: 1rem 2rem;
  padding: 1.4rem 0;
  cursor: default;
}

.o2-svc-row__num {
  font-family: var(--o2-f-display);
  font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--o2-brass);
}

.o2-svc-row__text h3 {
  font-family: var(--o2-f-display);
  font-size: clamp(1rem, 2vw, 1.4rem);
  font-weight: 700; letter-spacing: -0.02em;
  color: var(--o2-ink);
  margin-bottom: 0.2rem;
  transition: color 0.18s;
}
.o2-svc-row:hover .o2-svc-row__text h3 { color: var(--o2-navy); }
.o2-svc-row__text p {
  font-size: 0.88rem; color: var(--o2-muted);
  max-width: 44ch; line-height: 1.45;
}

.o2-svc-row__link {
  display: inline-flex; align-items: center; gap: 0.3rem;
  font-family: var(--o2-f-display);
  font-size: 0.74rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--o2-navy);
  padding: 0.42rem 0.95rem;
  border: 1.5px solid currentColor;
  border-radius: 40px;
  transition: background 0.18s, color 0.18s;
  white-space: nowrap;
}
.o2-svc-row__link::after { content: " →"; }
.o2-svc-row__link:hover { background: var(--o2-navy); color: #fff; }

/* Hover thumbnail reveal */
.o2-svc-row__thumb {
  width: 200px; height: 120px;
  border-radius: var(--o2-radius-lg);
  overflow: hidden;
  opacity: 0;
  transform: scale(0.9) translateX(8px);
  transition: opacity 0.28s var(--o2-ease), transform 0.28s var(--o2-ease);
  pointer-events: none;
  background: var(--o2-bg-3);
}
.o2-svc-row__thumb img { width: 100%; height: 100%; object-fit: cover; }
.o2-svc-row:hover .o2-svc-row__thumb { opacity: 1; transform: scale(1) translateX(0); }

/* ============================================================
   WHY / BENEFITS
   ============================================================ */
.o2-why {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.o2-why__quote {
  font-family: var(--o2-f-display);
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  font-weight: 800; letter-spacing: -0.035em; line-height: 1.1;
  color: var(--o2-ink);
  border: none; padding: 0; margin: 0;
}
.o2-why__quote em { font-style: normal; color: var(--o2-navy); }
.o2-why__intro {
  font-size: 1rem; color: var(--o2-muted); line-height: 1.6;
  margin-top: 1.25rem; max-width: 42ch;
}

.o2-benefit {
  display: grid; grid-template-columns: 2.5rem 1fr;
  gap: 1rem; align-items: start;
  padding: 1.2rem 0;
  border-top: 1px solid var(--o2-line);
}
.o2-benefit:last-child { border-bottom: 1px solid var(--o2-line); }
.o2-benefit__num {
  font-family: var(--o2-f-display);
  font-size: 0.68rem; font-weight: 700;
  letter-spacing: 0.1em; color: var(--o2-brass);
  padding-top: 0.2rem;
}
.o2-benefit h3 {
  font-size: 0.98rem; font-weight: 700; letter-spacing: -0.01em;
  margin-bottom: 0.3rem;
}
.o2-benefit p { font-size: 0.88rem; color: var(--o2-muted); line-height: 1.5; }

/* ============================================================
   PORTFOLIO GALLERY
   ============================================================ */
.o2-gallery-wrap {
  position: relative;
}
.o2-scroll-hint {
  display: none;
}
.o2-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 260px;
  gap: 0.85rem;
}
.o2-shot:nth-child(3n+1) { grid-row: span 2; }

.o2-shot {
  position: relative; display: block;
  overflow: hidden; border-radius: var(--o2-radius-lg);
  background: var(--o2-dark-3);
}
.o2-shot img,
.o2-shot__video {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.55s var(--o2-ease);
}
.o2-shot:hover img { transform: scale(1.06); }
.o2-shot.has-sparks-fx:hover img,
.o2-shot[data-sparks]:hover img { transform: none; }

.o2-shot__cap {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 1.25rem 1rem 1rem;
  background: linear-gradient(0deg, rgba(8,10,18,0.78) 0%, transparent 100%);
  font-size: 0.85rem; font-weight: 600; color: var(--o2-on-dark);
  transform: translateY(4px);
  transition: transform 0.28s;
}
.o2-shot:hover .o2-shot__cap { transform: translateY(0); }

/* ============================================================
   EQUIPMENT CARDS
   ============================================================ */
.o2-equip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.o2-equip-card {
  background: var(--o2-dark-3);
  border: 1px solid var(--o2-dark-line);
  border-radius: var(--o2-radius-lg);
  overflow: hidden;
  transition: border-color 0.22s, transform 0.22s;
}
.o2-equip-card:hover {
  border-color: rgba(184,136,44,0.35);
  transform: translateY(-3px);
}
.o2-equip-card__media {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--o2-dark-2);
  position: relative;
}
.o2-equip-card__media img { width: 100%; height: 100%; object-fit: cover; }
.o2-equip-card__body { padding: 1.15rem; }
.o2-equip-card__body h3 {
  font-size: 0.95rem; font-weight: 700; letter-spacing: -0.01em;
  color: var(--o2-on-dark); margin-bottom: 0.28rem;
}
.o2-equip-card__spec {
  font-size: 0.78rem; color: var(--o2-brass-2); font-weight: 600;
  margin-bottom: 0.45rem;
}
.o2-equip-card__detail {
  font-size: 0.83rem; color: var(--o2-on-dark-muted); line-height: 1.45;
}

/* ============================================================
   PROCESS STEPS
   ============================================================ */
.o2-process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.o2-process-step {
  padding: 2rem 2rem 2rem 0;
  border-right: 1px solid var(--o2-line);
}
.o2-process-step:last-child { border-right: none; }
.o2-process-step + .o2-process-step { padding-left: 2rem; }

.o2-process-step__num {
  font-family: var(--o2-f-display);
  font-size: clamp(2.8rem, 5.5vw, 4.5rem);
  font-weight: 800; letter-spacing: -0.06em; line-height: 1;
  color: var(--o2-bg-3);
  margin-bottom: 0.5rem;
}
.o2-process-step h3 {
  font-size: 1.02rem; font-weight: 700; letter-spacing: -0.01em;
  margin-bottom: 0.45rem;
}
.o2-process-step p { font-size: 0.88rem; color: var(--o2-muted); line-height: 1.5; }

/* ============================================================
   CTA SECTION
   ============================================================ */
.o2-cta {
  text-align: center;
  padding-block: clamp(3.5rem, 7vw, 6rem);
}
.o2-cta h2 {
  font-family: var(--o2-f-display);
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  font-weight: 800; letter-spacing: -0.03em; line-height: 1.1;
  color: #fff;
  max-width: 20ch; margin: 0 auto 0.85rem;
}
.o2-cta__lead {
  font-size: 1rem; color: rgba(255,255,255,0.72);
  max-width: 52ch; margin: 0 auto 2.25rem; line-height: 1.6;
}
.o2-cta__actions {
  display: flex; gap: 0.85rem;
  justify-content: center; flex-wrap: wrap;
}
.o2-cta__contacts {
  margin-top: 1.75rem;
  display: flex; gap: 1.5rem;
  justify-content: center; align-items: center; flex-wrap: wrap;
}
.o2-cta__contacts a {
  font-size: 0.88rem; color: rgba(255,255,255,0.6);
  transition: color 0.18s;
}
.o2-cta__contacts a:hover { color: #fff; }
.o2-cta__contacts span { color: rgba(255,255,255,0.28); }

/* ============================================================
   FOOTER
   ============================================================ */
.o2-footer {
  background: var(--o2-dark);
  color: var(--o2-on-dark-muted);
  padding: 2.25rem 0;
  border-top: 1px solid var(--o2-dark-line);
}
.o2-footer__in {
  display: flex; align-items: center;
  justify-content: space-between; gap: 1.5rem; flex-wrap: wrap;
  font-size: 0.82rem;
}
.o2-footer__in nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.o2-footer__in nav a { transition: color 0.18s; }
.o2-footer__in nav a:hover { color: var(--o2-on-dark); }

/* ============================================================
   MOBILE BOTTOM DOCK
   ============================================================ */
.o2-dock {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10, 12, 18, 0.94);
  backdrop-filter: blur(18px) saturate(1.15);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
  border-top: 1px solid rgba(240,236,227,0.09);
  padding:
    0.45rem
    max(0.5rem, env(safe-area-inset-right))
    calc(0.45rem + env(safe-area-inset-bottom))
    max(0.5rem, env(safe-area-inset-left));
  grid-template-columns: repeat(6, 1fr);
  gap: 0.1rem;
}

.o2-dock__item {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 0.16rem;
  min-height: 52px;
  padding: 0.4rem 0.15rem;
  font-family: var(--o2-f-display);
  font-size: 0.52rem; font-weight: 700;
  letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--o2-on-dark-muted);
  border-radius: 10px;
  transition: color 0.18s, background 0.18s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  position: relative;
  overflow: hidden;
}
.o2-dock__item:hover,
.o2-dock__item:focus-visible {
  color: var(--o2-on-dark);
  background: rgba(240,236,227,0.06);
}

.o2-dock__item--brass {
  background: var(--o2-brass);
  color: #fff !important;
}
.o2-dock__item--brass:hover { background: var(--o2-brass-2); }

.o2-dock__ico {
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
}
.o2-dock__ico svg { display: block; }
.o2-dock__ico img {
  width: 22px; height: 22px;
  border-radius: 5px; object-fit: cover;
}

/* iOS safe area for docked nav bottom */
.o2-dock-spacer { display: none; }

/* ============================================================
   REVEAL ANIMATION
   ============================================================ */
.o2-reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.7s var(--o2-ease),
    transform 0.7s var(--o2-ease);
  transition-delay: var(--o2-delay, 0ms);
  will-change: opacity, transform;
}
.o2-reveal.is-in { opacity: 1; transform: none; will-change: auto; }

/* ============================================================
   RESPONSIVE — 980px
   ============================================================ */
@media (max-width: 980px) {
  :root { --o2-nav-h: 82px; }

  .o2-brand__img {
    height: calc(78px * var(--o2-logo-scale, 1));
    filter: none !important; /* mobile: без тяжёлых пресет-фильтров */
  }
  .o2-nav__links { display: none; }
  .o2-nav__end   { display: none; }
  .o2-burger     { display: flex; }
  .o2-nav__inner { grid-template-columns: 1fr auto auto; gap: 0.35rem 0.55rem; }

  /* Hero */
  .o2-hero h1 { max-width: 100%; }
  .o2-hero__stats { grid-template-columns: repeat(2, 1fr); }
  .o2-stat { border-right: none; border-bottom: 1px solid rgba(240,236,227,0.08); }
  .o2-stat:nth-child(even) { border-bottom-color: transparent; }

  /* Services */
  .o2-svc-row__inner { grid-template-columns: 2.5rem 1fr auto; }
  .o2-svc-row__thumb { display: none; }

  /* Why */
  .o2-why { grid-template-columns: 1fr; gap: 2.5rem; }

  /* Equipment: 2 col */
  .o2-equip { grid-template-columns: repeat(2, 1fr); }

  /* Process: 2 col */
  .o2-process { grid-template-columns: repeat(2, 1fr); }
  .o2-process-step {
    border-right: none;
    border-bottom: 1px solid var(--o2-line);
    padding: 1.75rem 1.5rem;
  }
  .o2-process-step + .o2-process-step { padding-left: 1.5rem; }
  .o2-process-step:nth-child(odd)  { border-right: 1px solid var(--o2-line); }
  .o2-process-step:last-child,
  .o2-process-step:nth-last-child(2):nth-child(odd) { border-bottom: none; }

  /* Gallery: 2 col */
  .o2-gallery { grid-template-columns: repeat(2, 1fr); }
  .o2-shot:nth-child(3n+1) { grid-row: span 1; }

  /* Dock */
  .o2-dock { display: grid; }
}

/* ============================================================
   RESPONSIVE — 640px
   ============================================================ */
@media (max-width: 640px) {
  /* Hero: fix stats */
  .o2-hero__stats { padding-inline: 1rem; }
  .o2-stat { padding: 0.5rem; }

  /* Services: compact */
  .o2-svc-row__inner {
    grid-template-columns: 2rem 1fr;
    grid-template-rows: auto auto;
    gap: 0.4rem;
    padding: 1.1rem 0;
  }
  .o2-svc-row__link { grid-column: 2; justify-self: start; }

  /* Equipment: 1 col */
  .o2-equip { grid-template-columns: 1fr; }

  /* Process: 1 col */
  .o2-process { grid-template-columns: 1fr; }
  .o2-process-step { border-right: none !important; padding: 1.5rem 0; }
  .o2-process-step:last-child { border-bottom: none; }

  /* Gallery: horizontal swipe */
  .o2-gallery {
    display: flex;
    grid-template-columns: none;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
    gap: 0.75rem;
    padding-bottom: 0.35rem;
    scrollbar-width: none;
  }
  .o2-gallery::-webkit-scrollbar { display: none; }
  .o2-gallery .o2-shot {
    flex: 0 0 min(86vw, 340px);
    height: 220px;
    scroll-snap-align: center;
    grid-row: auto !important;
  }
  /* Не прячем карточки галереи до reveal — иначе при горизонтальном свайпе
     картинки остаются opacity:0, если IntersectionObserver не успел сработать. */
  .o2-gallery .o2-reveal {
    opacity: 1;
    transform: none;
  }
  .o2-scroll-hint {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin: 0 0 0.65rem;
    padding: 0;
    font-size: 0.68rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(240, 236, 227, 0.42);
    pointer-events: none;
    transition: opacity 0.35s var(--o2-ease);
  }
  .o2-scroll-hint span { line-height: 1; }
  .o2-scroll-hint::after {
    content: "";
    width: 1.1rem;
    height: 1.1rem;
    opacity: 0.7;
    background: currentColor;
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14'/%3E%3Cpath d='m13 6 6 6-6 6'/%3E%3C/svg%3E") center / contain no-repeat;
            mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12h14'/%3E%3Cpath d='m13 6 6 6-6 6'/%3E%3C/svg%3E") center / contain no-repeat;
    animation: o2-hint-nudge 1.6s var(--o2-ease) infinite;
  }
  .o2-gallery-wrap.is-hint-gone .o2-scroll-hint {
    opacity: 0;
  }
  .o2-gallery-wrap::after {
    content: "";
    position: absolute;
    top: 1.6rem;
    right: 0;
    bottom: 0.35rem;
    width: 2.25rem;
    pointer-events: none;
    background: linear-gradient(90deg, transparent, rgba(8, 10, 18, 0.55));
    opacity: 1;
    transition: opacity 0.35s var(--o2-ease);
  }
  .o2-gallery-wrap.is-hint-gone::after { opacity: 0; }
  @keyframes o2-hint-nudge {
    0%, 100% { transform: translateX(0); opacity: 0.45; }
    50% { transform: translateX(4px); opacity: 0.85; }
  }
  @media (prefers-reduced-motion: reduce) {
    .o2-scroll-hint::after { animation: none; }
  }

  /* Footer: stack */
  .o2-footer__in { flex-direction: column; align-items: flex-start; gap: 0.85rem; }

  /* CTA contacts: column */
  .o2-cta__contacts { flex-direction: column; gap: 0.6rem; }
  .o2-cta__contacts span { display: none; }
}

/* ============================================================
   RESPONSIVE — 430px (iPhone 17 Pro)
   ============================================================ */
@media (max-width: 430px) {
  :root { --o2-nav-h: 76px; }
  .o2-brand__img {
    height: calc(72px * var(--o2-logo-scale, 1));
  }

  .o2-hero h1 { font-size: clamp(2.2rem, 9.5vw, 2.8rem); letter-spacing: -0.03em; }
  .o2-hero__lead { font-size: 0.95rem; }
  .o2-hero__stats { grid-template-columns: repeat(2, 1fr); }

  .o2-svc-row__text p { display: none; } /* keep title only on small screens */

  .o2-gallery { grid-auto-rows: 175px; }

  .o2-dock { gap: 0; }
  .o2-dock__item { min-height: 48px; font-size: 0.52rem; }
  .o2-dock__ico  { width: 20px; height: 20px; }

  .o2-why__quote { font-size: clamp(1.5rem, 6.5vw, 2rem); }
}

/* ============================================================
   HAPTIC iOS overlay (invisible input[switch])
   ============================================================ */
.o2-haptic-layer {
  position: absolute; inset: 0; z-index: 2;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  cursor: pointer;
}
.o2-haptic-layer input[type="checkbox"][switch] {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  margin: 0; opacity: 0.01;
  transform: scale(4);
  transform-origin: center;
}

/* ============================================================
   MULTI-PAGE: shared pieces
   ============================================================ */
.o2-nav__links { gap: 1.6rem; }
.o2-nav__links a[aria-current="page"] { color: var(--o2-brass-2); border-color: var(--o2-brass-2); }
.o2-nav.is-solid .o2-nav__links a[aria-current="page"] { color: var(--o2-navy); border-color: var(--o2-brass); }
.o2-drawer__links a:hover { color: #b9efe8; }
.o2-drawer__links a[aria-current="page"] {
  position: relative;
  color: #c4f3ed;
  background: linear-gradient(180deg, #f4fffd 0%, #c4f3ed 48%, #86ddd3 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: none;
  filter: drop-shadow(0 0 12px rgba(134, 221, 211, 0.38));
}
.o2-drawer__links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 18%; right: 18%;
  bottom: -0.12em;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, #9fe8df 30%, #e6fffb 50%, #9fe8df 70%, transparent);
}
.o2-dock__item[aria-current="page"] { color: var(--o2-on-dark); background: rgba(240,236,227,0.08); }
.o2-nav .o2-brand__img { max-width: none; }
.o2-nav__links a { white-space: nowrap; }
@media (max-width: 1400px) { .o2-nav__phone { display: none; } }
@media (min-width: 981px) and (max-width: 1240px) {
  .o2-nav__links { display: none; }
  .o2-burger { display: flex; }
  .o2-nav__inner { grid-template-columns: auto 1fr auto auto; }
  .o2-nav__end { justify-self: end; }
  .o2-nav__phone { display: inline; }
}

.o2-btn--ghost-dark {
  background: transparent; color: var(--o2-navy);
  border: 1.5px solid var(--o2-navy);
}
.o2-btn--ghost-dark:hover { background: var(--o2-navy); color: #fff; }

.o2-h2 {
  font-family: var(--o2-f-display);
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  font-weight: 800; letter-spacing: -0.03em; line-height: 1.1;
}
.o2-h2--light { color: var(--o2-on-dark); }
.o2-h2--legal {
  font-family: var(--o2-f-body);
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.35;
  text-wrap: pretty;
  color: var(--o2-ink-2);
}

.o2-prose p { font-size: 1.02rem; line-height: 1.7; color: var(--o2-ink-2); }
.o2-prose p + p { margin-top: 1rem; }
.o2-prose--light p { color: var(--o2-on-dark-2); }

.o2-split {
  display: grid; grid-template-columns: 5fr 7fr;
  gap: clamp(2rem, 5vw, 5rem); align-items: start;
}

.o2-checks { display: grid; gap: 0.75rem; }
.o2-checks li {
  position: relative; padding-left: 1.9rem;
  font-size: 0.98rem; line-height: 1.5;
}
.o2-checks li::before {
  content: ""; position: absolute; left: 0; top: 0.3em;
  width: 1.05rem; height: 1.05rem; border-radius: 50%;
  background: var(--o2-brass) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/80% no-repeat;
}
.o2-checks--light li { color: rgba(255,255,255,0.88); }

/* Captions on gallery tiles */
.o2-shot__cap em {
  display: block; font-style: normal;
  font-size: 0.74rem; font-weight: 500;
  color: var(--o2-brass-2); margin-top: 0.15rem;
}
button.o2-shot { border: 0; padding: 0; cursor: zoom-in; font: inherit; text-align: left; width: 100%; height: 100%; }
figure.o2-shot { margin: 0; }
.o2-gallery--even .o2-shot:nth-child(3n+1),
.o2-gallery--works .o2-shot:nth-child(3n+1) { grid-row: span 1; }
.o2-gallery--works .o2-shot:nth-child(5n+1) { grid-row: span 2; }
.o2-shot.is-hidden { display: none; }

/* ============================================================
   PAGE HERO (inner pages)
   ============================================================ */
.o2-phero {
  position: relative; overflow: hidden;
  min-height: clamp(440px, 68vh, 640px);
  display: flex; align-items: flex-end;
  background: var(--o2-dark);
}
.o2-phero__media { position: absolute; inset: 0; z-index: 0; }
.o2-phero__media img { width: 100%; height: 100%; object-fit: cover; }
.o2-phero__veil {
  position: absolute; inset: 0; z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(8,10,18,0.86) 0%, rgba(8,10,18,0.55) 55%, rgba(8,10,18,0.25) 100%),
    linear-gradient(180deg, rgba(8,10,18,0.35) 0%, rgba(8,10,18,0) 40%, rgba(8,10,18,0.7) 100%);
}
/* искры/струя НАД вуалью и текстом: на 3440×1440 заголовок перекрывает точку эффекта */
.o2-phero > .fx-sparks {
  position: absolute;
  inset: auto;
  z-index: 4;
  pointer-events: none;
}
.o2-phero__body {
  position: relative; z-index: 3;
  padding: calc(var(--o2-nav-h) + 3rem) 0 clamp(2.5rem, 5vw, 4rem);
  color: var(--o2-on-dark);
}
.o2-phero h1 {
  font-family: var(--o2-f-display);
  font-size: clamp(2.1rem, 5.2vw, 4.4rem);
  font-weight: 800; letter-spacing: -0.035em; line-height: 1.02;
  max-width: 18ch; margin-bottom: 1.1rem;
}
.o2-phero__lead {
  font-size: clamp(0.98rem, 1.6vw, 1.15rem); line-height: 1.6;
  color: var(--o2-on-dark-2); max-width: 58ch; margin-bottom: 1.75rem;
}
.o2-crumbs {
  display: flex; flex-wrap: wrap; gap: 0.45rem;
  font-size: 0.78rem; color: var(--o2-on-dark-muted);
  margin-bottom: 1.5rem;
}
.o2-crumbs a { color: var(--o2-on-dark-2); transition: color 0.18s; }
.o2-crumbs a:hover { color: var(--o2-brass-2); }
.o2-crumbs [aria-current] { color: var(--o2-on-dark); }

/* ============================================================
   SERVICES PAGE
   ============================================================ */
.o2-svc-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: clamp(1rem, 2.5vw, 1.75rem);
}
.o2-svc-card {
  display: flex; flex-direction: column;
  background: var(--o2-surface); border: 1px solid var(--o2-line);
  border-radius: var(--o2-radius-lg); overflow: hidden;
  transition: transform 0.3s var(--o2-ease), box-shadow 0.3s var(--o2-ease);
}
.o2-svc-card:hover { transform: translateY(-4px); box-shadow: 0 24px 60px rgba(15,18,24,0.12); }
.o2-svc-card__media { position: relative; aspect-ratio: 16/10; overflow: hidden; background: var(--o2-dark-3); }
.o2-svc-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--o2-ease); }
.o2-svc-card:hover .o2-svc-card__media img { transform: scale(1.05); }
.o2-svc-card:hover .o2-svc-card__media.has-sparks-fx img,
.o2-svc-card:hover .o2-svc-card__media[data-sparks] img { transform: none; }
.o2-svc-card__num {
  position: absolute; left: 1rem; top: 1rem; z-index: 3;
  font-family: var(--o2-f-display); font-weight: 800; font-size: 0.75rem;
  letter-spacing: 0.12em; color: #fff;
  background: rgba(15,18,24,0.6); backdrop-filter: blur(8px);
  padding: 0.35rem 0.6rem; border-radius: 8px;
}
.o2-svc-card__body { padding: clamp(1.25rem, 2.5vw, 1.75rem); display: grid; gap: 0.75rem; }
.o2-svc-card__body h2 {
  font-family: var(--o2-f-display); font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  letter-spacing: -0.02em;
}
.o2-svc-card__body > p { color: var(--o2-muted); font-size: 0.95rem; }
.o2-svc-card__body ul { display: grid; gap: 0.35rem; font-size: 0.88rem; color: var(--o2-ink-2); }
.o2-svc-card__body li::before { content: "— "; color: var(--o2-brass); }
.o2-svc-card__more {
  margin-top: 0.4rem; font-family: var(--o2-f-display);
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--o2-link);
}

.o2-two-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.o2-info-card {
  background: var(--o2-surface); border: 1px solid var(--o2-line);
  border-radius: var(--o2-radius-lg);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  display: grid; gap: 1.25rem; align-content: start;
}
.o2-info-card--navy { background: var(--o2-navy); border-color: transparent; color: #fff; }
.o2-info-card .o2-btn { justify-self: start; }

.o2-next {
  display: grid; gap: 0.4rem;
  padding: clamp(1.5rem, 3vw, 2.5rem) 0;
  border-top: 1px solid var(--o2-line-strong);
  border-bottom: 1px solid var(--o2-line-strong);
}
.o2-next strong {
  font-family: var(--o2-f-display);
  font-size: clamp(1.6rem, 4vw, 3rem); letter-spacing: -0.03em;
  transition: color 0.2s;
}
.o2-next:hover strong { color: var(--o2-navy); }
.o2-next > span:last-child { color: var(--o2-muted); }

/* ============================================================
   EQUIPMENT PAGE
   ============================================================ */
.o2-machines { display: grid; gap: clamp(2.5rem, 6vw, 5rem); }
.o2-machine {
  display: grid; grid-template-columns: 1.1fr 1fr;
  gap: clamp(1.5rem, 4vw, 4rem); align-items: center;
}
.o2-machine--flip .o2-machine__media { order: 2; }
.o2-machine__media {
  position: relative; aspect-ratio: 4/3;
  border-radius: var(--o2-radius-lg); overflow: hidden;
  background: var(--o2-dark-3);
}
.o2-machine__media img { width: 100%; height: 100%; object-fit: cover; }
.o2-machine__body { display: grid; gap: 0.75rem; }
.o2-machine__num {
  font-family: var(--o2-f-display); font-weight: 800;
  font-size: clamp(2.5rem, 5vw, 4rem); line-height: 1;
  color: var(--o2-bg-3); letter-spacing: -0.05em;
}
.o2-machine__body h2 {
  font-family: var(--o2-f-display);
  font-size: clamp(1.4rem, 2.8vw, 2.1rem); letter-spacing: -0.025em;
}
.o2-machine__spec { color: var(--o2-brass); font-weight: 600; font-size: 0.92rem; }
.o2-machine__body p:last-child { color: var(--o2-ink-2); line-height: 1.65; }

/* ============================================================
   WORKS PAGE: filter + lightbox
   ============================================================ */
.o2-filter {
  display: flex; gap: 0.5rem; flex-wrap: wrap;
  margin-bottom: 1.75rem;
}
.o2-filter button {
  font-family: var(--o2-f-display); font-size: 0.76rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--o2-on-dark-2); background: transparent;
  border: 1.5px solid var(--o2-dark-line-strong);
  border-radius: 40px; padding: 0.55rem 1.1rem; cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.o2-filter button:hover { color: var(--o2-on-dark); border-color: rgba(240,236,227,0.4); }
.o2-filter button.is-active { background: var(--o2-brass); border-color: var(--o2-brass); color: #fff; }

.o2-lightbox {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(8,10,18,0.94);
  display: grid; place-items: center;
  padding: max(1rem, env(safe-area-inset-top)) 1rem max(1rem, env(safe-area-inset-bottom));
}
.o2-lightbox[hidden] { display: none; }
.o2-lightbox figure { margin: 0; max-width: min(1100px, 100%); width: min(1100px, 100%); display: grid; gap: 0.75rem; }
.o2-lightbox figure > img { max-height: min(68vh, 820px); width: auto; max-width: 100%; margin: 0 auto; border-radius: var(--o2-radius-lg); object-fit: contain; background: #0a0c12; }
.o2-lightbox__video {
  display: block;
  width: min(1100px, 100%);
  max-height: min(78vh, 900px);
  margin: 0 auto;
  border-radius: var(--o2-radius-lg);
  background: #0a0c12;
  object-fit: contain;
}
.o2-lightbox__video[hidden] { display: none; }
.o2-lightbox.is-video .o2-lightbox__strip { display: none; }
.o2-shot--video { position: relative; }
.o2-shot__video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #0a0c12;
}
.o2-shot__play {
  position: absolute; left: 50%; top: 46%; transform: translate(-50%, -50%);
  width: 3rem; height: 3rem; border-radius: 999px;
  display: grid; place-items: center;
  background: rgba(10, 12, 18, 0.72); color: #f0ece3;
  font-size: 0.95rem; letter-spacing: 0.02em;
  border: 1px solid rgba(184, 136, 44, 0.55);
  pointer-events: none; z-index: 2;
}
.o2-shot--video:hover .o2-shot__play,
.o2-shot--video:focus-visible .o2-shot__play { background: rgba(10, 12, 18, 0.88); border-color: var(--o2-brass); }
.o2-lightbox figcaption { color: var(--o2-on-dark-2); font-size: 0.92rem; line-height: 1.5; text-align: center; padding: 0 0.5rem; }
.o2-lightbox figcaption strong { display: block; color: var(--o2-on-dark); font-size: 1.05rem; margin-bottom: 0.25rem; }
.o2-lightbox__close {
  position: absolute; top: max(0.75rem, env(safe-area-inset-top)); right: 0.75rem;
  width: 48px; height: 48px; border-radius: 50%;
  border: 1px solid var(--o2-dark-line-strong); background: rgba(240,236,227,0.06);
  color: var(--o2-on-dark); font-size: 1.8rem; line-height: 1; cursor: pointer; z-index: 2;
}
.o2-lightbox__nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px; border-radius: 50%;
  border: 1px solid var(--o2-dark-line-strong); background: rgba(240,236,227,0.08);
  color: var(--o2-on-dark); font-size: 1.8rem; line-height: 1; cursor: pointer; z-index: 2;
}
.o2-lightbox__nav--prev { left: max(0.5rem, env(safe-area-inset-left)); }
.o2-lightbox__nav--next { right: max(0.5rem, env(safe-area-inset-right)); }
.o2-lightbox__nav:hover { background: rgba(240,236,227,0.16); }
.o2-lightbox__strip {
  display: flex; gap: 0.45rem; overflow-x: auto; padding: 0.15rem 0.2rem 0.35rem;
  scrollbar-width: thin; justify-content: center;
}
.o2-lightbox__strip[hidden] { display: none; }
.o2-lightbox__thumb {
  flex: 0 0 auto; width: 64px; height: 48px; padding: 0; border-radius: 8px;
  border: 2px solid transparent; background: #12151e; overflow: hidden; cursor: pointer;
}
.o2-lightbox__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.o2-lightbox__thumb.is-on { border-color: var(--o2-brass); }
.o2-lightbox__thumb:hover { border-color: rgba(184,136,44,0.55); }
@media (max-width: 760px) {
  .o2-lightbox__nav { width: 40px; height: 40px; font-size: 1.5rem; }
  .o2-lightbox figure > img { max-height: 58vh; }
  .o2-lightbox__thumb { width: 56px; height: 42px; }
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.o2-values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.o2-values article {
  background: var(--o2-surface); border: 1px solid var(--o2-line);
  border-radius: var(--o2-radius-lg); padding: 1.5rem;
  display: grid; gap: 0.6rem; align-content: start;
}
.o2-values span { font-family: var(--o2-f-display); font-weight: 800; color: var(--o2-brass); font-size: 0.78rem; letter-spacing: 0.12em; }
.o2-values h3 { font-size: 1.05rem; letter-spacing: -0.01em; }
.o2-values p { font-size: 0.9rem; color: var(--o2-muted); line-height: 1.55; }

.o2-mini-park { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.85rem; }
.o2-mini-park__item {
  position: relative; aspect-ratio: 4/3; overflow: hidden;
  border-radius: var(--o2-radius-lg); background: var(--o2-dark-3);
}
.o2-mini-park__item img { width: 100%; height: 100%; object-fit: cover; }
.o2-mini-park__item span {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 3;
  padding: 1.5rem 1rem 0.85rem;
  background: linear-gradient(0deg, rgba(8,10,18,0.82), transparent);
  font-size: 0.88rem; font-weight: 600; color: var(--o2-on-dark);
}

.o2-req { display: grid; gap: 0; margin: 0; }
.o2-req > div {
  display: grid; grid-template-columns: 11rem 1fr; gap: 1rem;
  padding: 0.85rem 0; border-top: 1px solid var(--o2-line);
}
.o2-req--full > div { grid-template-columns: minmax(9rem, 14rem) 1fr; }
.o2-req dt { color: var(--o2-muted); font-size: 0.85rem; }
.o2-req dd { margin: 0; font-size: 0.95rem; word-break: break-word; }
.o2-req a { color: var(--o2-link); font-weight: 600; }

/* Сборка букв/цифр «из воздуха» (страница реквизитов) */
.o2-assemble-ch {
  display: inline-block;
  white-space: pre;
  will-change: transform, opacity, filter;
  transition:
    transform 0.7s var(--o2-ease),
    opacity 0.55s var(--o2-ease),
    filter 0.55s var(--o2-ease);
}
.o2-assemble-ch.is-fly {
  opacity: 0;
  filter: blur(5px);
  transform: translate(var(--o2-ax, 0), var(--o2-ay, 0)) rotate(var(--o2-ar, 0deg)) scale(0.72);
}
.o2-assemble-ch.is-land {
  opacity: 1;
  filter: none;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .o2-assemble-ch {
    transition: none !important;
    transform: none !important;
    filter: none !important;
    opacity: 1 !important;
  }
}

/* ============================================================
   FAQ
   ============================================================ */
.o2-faq { border-top: 1px solid var(--o2-line-strong); }
.o2-faq details { border-bottom: 1px solid var(--o2-line); }
.o2-faq summary {
  list-style: none; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 1.25rem 0;
  font-family: var(--o2-f-display); font-weight: 700;
  font-size: clamp(1rem, 1.8vw, 1.2rem); letter-spacing: -0.01em;
}
.o2-faq summary::-webkit-details-marker { display: none; }
.o2-faq summary::after {
  content: "+"; flex-shrink: 0;
  width: 2rem; height: 2rem; border-radius: 50%;
  display: grid; place-items: center;
  border: 1.5px solid var(--o2-line-strong); color: var(--o2-brass);
  font-size: 1.2rem; transition: transform 0.25s var(--o2-ease);
}
.o2-faq details[open] summary::after { transform: rotate(45deg); }
.o2-faq details p { padding: 0 0 1.4rem; max-width: 70ch; color: var(--o2-ink-2); line-height: 1.65; }

/* ============================================================
   FORMS: calculator + contacts
   ============================================================ */
.o2-form { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem 1.25rem; }
.o2-field { display: grid; gap: 0.4rem; }
.o2-field--wide { grid-column: 1 / -1; }
.o2-field label { font-size: 0.8rem; font-weight: 600; color: var(--o2-ink-2); letter-spacing: 0.01em; }
.o2-field input,
.o2-field select,
.o2-field textarea {
  width: 100%; font: inherit; font-size: 16px;
  color: var(--o2-ink); background: var(--o2-surface);
  border: 1.5px solid var(--o2-line-strong); border-radius: 12px;
  padding: 0.8rem 0.95rem; min-height: 50px;
  transition: border-color 0.18s, box-shadow 0.18s;
  -webkit-appearance: none; appearance: none;
}
.o2-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%237a7268' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 0.95rem center; background-size: 12px;
  padding-right: 2.4rem;
}
.o2-field textarea { min-height: 130px; resize: vertical; }
.o2-field input:focus,
.o2-field select:focus,
.o2-field textarea:focus { outline: none; border-color: var(--o2-navy); box-shadow: 0 0 0 4px rgba(28,50,96,0.12); }
.o2-form .o2-btn { justify-content: center; min-height: 52px; }

/* Кастомное поле файлов — в стиле формы, без системного «Choose file» */
.o2-file__label {
  font-size: 0.8rem; font-weight: 600; color: var(--o2-ink-2); letter-spacing: 0.01em;
}
.o2-file { display: grid; gap: 0.65rem; }
.o2-file__input {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.o2-file__zone {
  display: grid; justify-items: center; gap: 0.35rem; text-align: center;
  margin: 0; cursor: pointer;
  padding: 1.15rem 1rem;
  background: var(--o2-bg);
  border: 1.5px dashed var(--o2-line-strong);
  border-radius: 12px;
  color: var(--o2-ink-2);
  transition: border-color 0.18s, background 0.18s, box-shadow 0.18s, color 0.18s;
}
.o2-file__zone:hover {
  border-color: var(--o2-navy);
  background: rgba(28, 50, 96, 0.04);
  color: var(--o2-ink);
}
.o2-file__input:focus-visible + .o2-file__zone {
  outline: none;
  border-color: var(--o2-navy);
  box-shadow: 0 0 0 4px rgba(28, 50, 96, 0.12);
}
.o2-file.is-drag .o2-file__zone {
  border-color: var(--o2-brass);
  background: rgba(184, 136, 44, 0.08);
  color: var(--o2-ink);
}
.o2-file__ico {
  display: grid; place-items: center;
  width: 2.4rem; height: 2.4rem; margin-bottom: 0.15rem;
  border-radius: 999px;
  background: rgba(28, 50, 96, 0.08);
  color: var(--o2-navy);
}
.o2-file__title {
  font-family: var(--o2-f-display);
  font-size: 0.82rem; font-weight: 700;
  letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--o2-ink);
}
.o2-file__hint { font-size: 0.78rem; color: var(--o2-muted); line-height: 1.4; }
.o2-file__list {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 0.4rem;
}
.o2-file__list[hidden] { display: none; }
.o2-file__item {
  display: flex; align-items: center; justify-content: space-between; gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  background: var(--o2-surface);
  border: 1px solid var(--o2-line);
  border-radius: 10px;
  font-size: 0.86rem; color: var(--o2-ink);
}
.o2-file__name {
  min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  font-weight: 600;
}
.o2-file__meta { flex-shrink: 0; color: var(--o2-muted); font-size: 0.78rem; }
.o2-file__clear {
  flex-shrink: 0; margin: 0; padding: 0.2rem 0.45rem;
  border: 0; background: transparent; color: var(--o2-muted);
  font: inherit; font-size: 0.78rem; cursor: pointer;
  text-decoration: underline; text-underline-offset: 2px;
}
.o2-file__clear:hover { color: var(--o2-ink); }

html[data-o2-theme="dark"] .o2-file__zone {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(240, 236, 227, 0.22);
  color: var(--o2-on-dark-2);
}
html[data-o2-theme="dark"] .o2-file__zone:hover,
html[data-o2-theme="dark"] .o2-file.is-drag .o2-file__zone {
  border-color: var(--o2-brass);
  background: rgba(184, 136, 44, 0.1);
  color: var(--o2-on-dark);
}
html[data-o2-theme="dark"] .o2-file__title { color: var(--o2-on-dark); }
html[data-o2-theme="dark"] .o2-file__hint { color: var(--o2-on-dark-muted); }
html[data-o2-theme="dark"] .o2-file__ico {
  background: rgba(240, 236, 227, 0.08);
  color: var(--o2-brass-2);
}
html[data-o2-theme="dark"] .o2-file__item {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(240, 236, 227, 0.14);
  color: var(--o2-on-dark);
}
html[data-o2-theme="dark"] .o2-file__meta,
html[data-o2-theme="dark"] .o2-file__clear { color: var(--o2-on-dark-muted); }
html[data-o2-theme="dark"] .o2-file__clear:hover { color: var(--o2-on-dark); }
html[data-o2-theme="dark"] .o2-file__input:focus-visible + .o2-file__zone {
  border-color: var(--o2-brass);
  box-shadow: 0 0 0 4px rgba(184, 136, 44, 0.18);
}

.o2-consent { display: flex; gap: 0.7rem; align-items: flex-start; font-size: 0.85rem; color: var(--o2-muted); line-height: 1.45; }
.o2-consent input { width: 20px; height: 20px; margin-top: 0.1rem; accent-color: var(--o2-brass); flex-shrink: 0; }
.o2-consent a { color: var(--o2-link); text-decoration: underline; text-underline-offset: 2px; }

.o2-flash {
  grid-column: 1 / -1; margin: 0;
  padding: 0.9rem 1.1rem; border-radius: 12px; font-size: 0.92rem;
}
.o2-flash--success { background: #e6f2ea; color: #1d5a33; border: 1px solid #b9dcc5; }
.o2-flash--error { background: #fbeaea; color: #8a2424; border: 1px solid #efc4c4; }

.o2-calc { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(1.5rem, 3vw, 2.5rem); align-items: start; }
.o2-calc__form {
  background: var(--o2-surface); border: 1px solid var(--o2-line);
  border-radius: var(--o2-radius-lg); padding: clamp(1.25rem, 3vw, 2rem);
}
/* панели калькулятора: поля входят в сетку формы */
.o2-calc-panel:not([hidden]) { display: contents; }
.o2-calc-panel[hidden] { display: none !important; }
.o2-calc__result {
  position: sticky; top: calc(var(--o2-nav-h) + 1rem);
  background: var(--o2-dark); color: var(--o2-on-dark);
  border-radius: var(--o2-radius-lg); padding: clamp(1.5rem, 3vw, 2.25rem);
  display: grid; gap: 0.9rem;
}
.o2-calc__price {
  font-family: var(--o2-f-display); font-weight: 800;
  font-size: clamp(2.2rem, 5vw, 3.4rem); letter-spacing: -0.04em; line-height: 1;
  color: var(--o2-brass-2);
}
.o2-calc__range { color: var(--o2-on-dark-2); font-size: 0.92rem; }
.o2-calc__meta { margin: 0.4rem 0; display: grid; }
.o2-calc__meta > div {
  display: flex; justify-content: space-between; gap: 1rem;
  padding: 0.6rem 0; border-top: 1px solid var(--o2-dark-line);
  font-size: 0.88rem;
}
.o2-calc__meta dt { color: var(--o2-on-dark-muted); }
.o2-calc__meta dd { margin: 0; text-align: right; }
.o2-calc__note { font-size: 0.78rem; color: var(--o2-on-dark-muted); line-height: 1.5; }
.o2-calc__result .o2-btn { justify-content: center; width: 100%; }
.o2-calc__result #calcDownloadTkp { margin-top: 0.35rem; }
.o2-calc__lead {
  display: grid;
  gap: 0.65rem;
  margin: 0.85rem 0 0.35rem;
  padding: 0.85rem 0 0;
  border-top: 1px solid rgba(240,236,227,0.12);
}
.o2-calc__lead .o2-field label { color: var(--o2-on-dark-2); }
.o2-calc__lead input {
  background: rgba(255,255,255,0.06);
  border-color: rgba(240,236,227,0.18);
  color: var(--o2-on-dark);
}
#contractStatus.is-err { color: #b42318; }
#contractForm { margin-top: 1.5rem; }
.o2-calc__result .o2-btn + .o2-btn,
.o2-calc__result #calcDownloadTkp + .o2-btn { margin-top: 0.55rem; }

.o2-contact { display: grid; grid-template-columns: 1fr 1.25fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.o2-contact__info { display: grid; gap: 0.9rem; align-content: start; }
.o2-contact__phone {
  font-family: var(--o2-f-body);
  font-weight: 650;
  font-size: clamp(1.2rem, 2.4vw, 1.55rem);
  letter-spacing: 0.01em;
  line-height: 1.15;
  white-space: nowrap;
  display: inline-block;
  max-width: 100%;
  font-variant-numeric: tabular-nums;
  color: var(--o2-ink);
}
.o2-contact__phone:hover { color: var(--o2-link); }
.o2-contact__mail { font-size: 1.1rem; color: var(--o2-link); font-weight: 600; }
.o2-contact__msg { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 1rem; }
.o2-contact__form {
  background: var(--o2-surface); border: 1px solid var(--o2-line);
  border-radius: var(--o2-radius-lg); padding: clamp(1.25rem, 3vw, 2.25rem);
  scroll-margin-top: calc(var(--o2-nav-h) + 1rem);
}
.o2-contact__form h2 {
  grid-column: 1 / -1;
  font-family: var(--o2-f-display); font-size: clamp(1.4rem, 2.6vw, 1.9rem); letter-spacing: -0.02em;
}

/* ============================================================
   FOOTER (multi-column)
   ============================================================ */
.o2-footer { padding: clamp(3rem, 6vw, 4.5rem) 0 0; }
.o2-footer__grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 2rem; padding-bottom: 2.5rem;
}
.o2-footer__brand .o2-brand__img {
  /* те же размеры/фильтр, что у шапки (.o2-brand__img) — только отступ снизу */
  margin-bottom: 1rem;
  max-height: none;
}
.o2-footer__brand p { font-size: 0.88rem; line-height: 1.6; max-width: 34ch; }
.o2-footer__col { display: grid; gap: 0.55rem; align-content: start; font-size: 0.88rem; }
.o2-footer__col h3 {
  font-family: var(--o2-f-display); font-size: 0.7rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--o2-brass-2); margin-bottom: 0.35rem;
}
.o2-footer__col a { color: var(--o2-on-dark-2); transition: color 0.18s; }
.o2-footer__col a:hover { color: var(--o2-on-dark); }
.o2-footer__phone { font-family: var(--o2-f-display); font-weight: 800; font-size: 1.15rem; color: var(--o2-on-dark) !important; }
.o2-footer__bottom {
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding: 1.25rem 0 1.5rem; border-top: 1px solid var(--o2-dark-line);
  font-size: 0.78rem;
}
.o2-footer__bottom nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.o2-footer__bottom a:hover { color: var(--o2-on-dark); }

/* ============================================================
   MULTI-PAGE RESPONSIVE
   ============================================================ */
@media (max-width: 980px) {
  .o2-split, .o2-two-cards, .o2-calc, .o2-contact { grid-template-columns: 1fr; }
  .o2-machine { grid-template-columns: 1fr; }
  .o2-machine--flip .o2-machine__media { order: 0; }
  .o2-values { grid-template-columns: repeat(2, 1fr); }
  .o2-footer__grid { grid-template-columns: 1fr 1fr; }
  .o2-calc__result { position: static; }
  .o2-head--row { flex-direction: column; align-items: flex-start; }
  .o2-footer { padding-bottom: calc(4.5rem + env(safe-area-inset-bottom)); }
}

@media (max-width: 640px) {
  .o2-svc-grid { grid-template-columns: 1fr; }
  .o2-values { grid-template-columns: 1fr; }
  .o2-mini-park { grid-template-columns: repeat(2, 1fr); }
  .o2-form { grid-template-columns: 1fr; }
  .o2-req > div { grid-template-columns: 1fr; gap: 0.2rem; }
  .o2-footer__grid { grid-template-columns: 1fr; gap: 1.75rem; }
  .o2-phero { min-height: 420px; }
  .o2-phero__veil { background: linear-gradient(180deg, rgba(8,10,18,0.45) 0%, rgba(8,10,18,0.35) 35%, rgba(8,10,18,0.9) 100%); }
  .o2-gallery--works .o2-shot:nth-child(5n+1) { grid-row: span 1; }
  .o2-hero__actions .o2-btn, .o2-phero .o2-btn { flex: 1 1 100%; justify-content: center; }
}

@media (max-width: 430px) {
  .o2-phero h1 { font-size: clamp(1.9rem, 8.6vw, 2.4rem); }
  .o2-phero__lead { font-size: 0.95rem; }
  .o2-crumbs { margin-bottom: 1rem; }
  .o2-filter { flex-wrap: nowrap; overflow-x: auto; margin-inline: calc(-1 * (100vw - 100%) / 2); padding-inline: calc((100vw - 100%) / 2); scrollbar-width: none; }
  .o2-filter button { flex-shrink: 0; }
}

/* Очень узкие телефоны */
@media (max-width: 360px) {
  :root { --o2-wrap: min(1240px, calc(100% - 1rem)); }
  .o2-dock__item { font-size: 0.48rem; padding-inline: 0.15rem; }
  .o2-contact__phone { font-size: 1.05rem; }
  .o2-btn { padding-inline: 1rem; }
}

/* Планшеты landscape / небольшие ноутбуки */
@media (min-width: 1241px) and (max-width: 1400px) {
  .o2-nav__links { gap: 1.25rem; }
}

/* Широкие мониторы — контент не растягивается бесконечно */
@media (min-width: 1440px) {
  :root { --o2-wrap: min(1320px, calc(100% - 5rem)); }
}

/* Таблицы / длинные реквизиты — без горизонтального скролла страницы */
.o2-req dd,
.o2-contact__phone,
.o2-drawer__phone {
  overflow-wrap: anywhere;
  word-break: break-word;
}
.o2-form input,
.o2-form select,
.o2-form textarea {
  max-width: 100%;
}
.o2-drawer__actions {
  display: grid;
  gap: 0.65rem;
}
.o2-drawer__actions .o2-btn { width: 100%; justify-content: center; }

/* Высота экрана iOS Safari / Android Chrome */
@supports (height: 100dvh) {
  .o2-hero { min-height: 100dvh; }
}

/* ============================================================
   COLOR PALETTES (data-o2-palette) — только токены, вёрстка та же
   ============================================================ */

/* 1. Цех — текущий (warm stone + navy + brass) */
html[data-o2-palette="tseh"],
html:not([data-o2-palette]) {
  /* defaults already in :root */
}

/* 2. Сталь */
html[data-o2-palette="stal"] {
  --o2-bg: #f1f3f5; --o2-bg-2: #e6eaee; --o2-bg-3: #d8dee4;
  --o2-ink: #14181e; --o2-ink-2: #2e3640; --o2-muted: #6a7380;
  --o2-line: rgba(20,24,30,0.10); --o2-line-strong: rgba(20,24,30,0.18);
  --o2-navy: #2a3d52; --o2-navy-2: #3a516a;
  --o2-brass: #6e8498; --o2-brass-2: #8aa0b4;
  --o2-dark: #12161c; --o2-dark-2: #1a2028; --o2-dark-3: #242c36;
  --o2-on-dark: #eef1f4; --o2-on-dark-2: #b4bcc6; --o2-on-dark-muted: #7a8490;
  --o2-dark-line: rgba(238,241,244,0.09); --o2-dark-line-strong: rgba(238,241,244,0.16);
}

/* 3. Лазер */
html[data-o2-palette="lazer"] {
  --o2-bg: #eef2f6; --o2-bg-2: #e2e8f0; --o2-bg-3: #d0d9e4;
  --o2-ink: #0e1624; --o2-ink-2: #243048; --o2-muted: #5a6a80;
  --o2-line: rgba(14,22,36,0.10); --o2-line-strong: rgba(14,22,36,0.18);
  --o2-navy: #152a55; --o2-navy-2: #1e3a70;
  --o2-brass: #1aa0b8; --o2-brass-2: #3cbcce;
  --o2-dark: #0a101c; --o2-dark-2: #101828; --o2-dark-3: #182238;
  --o2-on-dark: #e8f4f8; --o2-on-dark-2: #a8c4d0; --o2-on-dark-muted: #6a8894;
  --o2-dark-line: rgba(232,244,248,0.09); --o2-dark-line-strong: rgba(232,244,248,0.16);
}

/* 4. Окалина */
html[data-o2-palette="okalina"] {
  --o2-bg: #f5f0eb; --o2-bg-2: #ebe4dc; --o2-bg-3: #ddd4c8;
  --o2-ink: #1a1410; --o2-ink-2: #3a2e26; --o2-muted: #7a6a5c;
  --o2-line: rgba(26,20,16,0.10); --o2-line-strong: rgba(26,20,16,0.18);
  --o2-navy: #3a2418; --o2-navy-2: #4e3222;
  --o2-brass: #b86838; --o2-brass-2: #d48450;
  --o2-dark: #14100c; --o2-dark-2: #1c1612; --o2-dark-3: #2a2018;
  --o2-on-dark: #f2eae2; --o2-on-dark-2: #c4b4a4; --o2-on-dark-muted: #887868;
  --o2-dark-line: rgba(242,234,226,0.09); --o2-dark-line-strong: rgba(242,234,226,0.16);
}

/* 5. Синька */
html[data-o2-palette="sinka"] {
  --o2-bg: #eaf0f6; --o2-bg-2: #dce6f0; --o2-bg-3: #c8d6e4;
  --o2-ink: #0c1c30; --o2-ink-2: #1e3450; --o2-muted: #5a7088;
  --o2-line: rgba(12,28,48,0.10); --o2-line-strong: rgba(12,28,48,0.18);
  --o2-navy: #0b3a6e; --o2-navy-2: #145090;
  --o2-brass: #4a9ad4; --o2-brass-2: #6eb4e4;
  --o2-dark: #081428; --o2-dark-2: #0e1e38; --o2-dark-3: #162c48;
  --o2-on-dark: #e4eef8; --o2-on-dark-2: #a8bfd4; --o2-on-dark-muted: #6a849c;
  --o2-dark-line: rgba(228,238,248,0.09); --o2-dark-line-strong: rgba(228,238,248,0.16);
}

/* 6. Искра */
html[data-o2-palette="iskra"] {
  --o2-bg: #f6f2ea; --o2-bg-2: #ece6da; --o2-bg-3: #ddd4c4;
  --o2-ink: #18140e; --o2-ink-2: #383028; --o2-muted: #7a6e5c;
  --o2-line: rgba(24,20,14,0.10); --o2-line-strong: rgba(24,20,14,0.18);
  --o2-navy: #2a2218; --o2-navy-2: #3e3224;
  --o2-brass: #d48a18; --o2-brass-2: #e8a838;
  --o2-dark: #100e0a; --o2-dark-2: #1a1610; --o2-dark-3: #282218;
  --o2-on-dark: #f4eee4; --o2-on-dark-2: #c8bca8; --o2-on-dark-muted: #887c68;
  --o2-dark-line: rgba(244,238,228,0.09); --o2-dark-line-strong: rgba(244,238,228,0.16);
}

/* 7. Нержавейка */
html[data-o2-palette="nerzh"] {
  --o2-bg: #f2f4f4; --o2-bg-2: #e6eaea; --o2-bg-3: #d4dcdc;
  --o2-ink: #121818; --o2-ink-2: #2a3434; --o2-muted: #627070;
  --o2-line: rgba(18,24,24,0.10); --o2-line-strong: rgba(18,24,24,0.18);
  --o2-navy: #1a3a3c; --o2-navy-2: #285052;
  --o2-brass: #3a9a94; --o2-brass-2: #54b4ac;
  --o2-dark: #0e1414; --o2-dark-2: #161e1e; --o2-dark-3: #222c2c;
  --o2-on-dark: #eef2f2; --o2-on-dark-2: #b0bcbc; --o2-on-dark-muted: #748080;
  --o2-dark-line: rgba(238,242,242,0.09); --o2-dark-line-strong: rgba(238,242,242,0.16);
}

/* 8. Чугун */
html[data-o2-palette="chugun"] {
  --o2-bg: #eceae6; --o2-bg-2: #e0ddd8; --o2-bg-3: #d0ccc4;
  --o2-ink: #161412; --o2-ink-2: #322e2a; --o2-muted: #6e6860;
  --o2-line: rgba(22,20,18,0.11); --o2-line-strong: rgba(22,20,18,0.19);
  --o2-navy: #22201c; --o2-navy-2: #36322c;
  --o2-brass: #a89050; --o2-brass-2: #c0a868;
  --o2-dark: #0c0c0a; --o2-dark-2: #161612; --o2-dark-3: #24241e;
  --o2-on-dark: #ece8e0; --o2-on-dark-2: #b8b0a4; --o2-on-dark-muted: #7a7468;
  --o2-dark-line: rgba(236,232,224,0.09); --o2-dark-line-strong: rgba(236,232,224,0.16);
}

/* 9. Графит */
html[data-o2-palette="grafit"] {
  --o2-bg: #f0f0f0; --o2-bg-2: #e4e4e4; --o2-bg-3: #d4d4d4;
  --o2-ink: #141414; --o2-ink-2: #2e2e2e; --o2-muted: #6a6a6a;
  --o2-line: rgba(20,20,20,0.10); --o2-line-strong: rgba(20,20,20,0.18);
  --o2-navy: #2a2a2a; --o2-navy-2: #3e3e3e;
  --o2-brass: #8a8a8a; --o2-brass-2: #a8a8a8;
  --o2-dark: #0e0e0e; --o2-dark-2: #181818; --o2-dark-3: #262626;
  --o2-on-dark: #f0f0f0; --o2-on-dark-2: #b8b8b8; --o2-on-dark-muted: #787878;
  --o2-dark-line: rgba(240,240,240,0.09); --o2-dark-line-strong: rgba(240,240,240,0.16);
}

/* 10. Масло */
html[data-o2-palette="maslo"] {
  --o2-bg: #f2f0e8; --o2-bg-2: #e6e4d8; --o2-bg-3: #d6d2c4;
  --o2-ink: #161812; --o2-ink-2: #303428; --o2-muted: #6a7060;
  --o2-line: rgba(22,24,18,0.10); --o2-line-strong: rgba(22,24,18,0.18);
  --o2-navy: #2a3220; --o2-navy-2: #3e4830;
  --o2-brass: #a88828; --o2-brass-2: #c4a43c;
  --o2-dark: #10140c; --o2-dark-2: #181c12; --o2-dark-3: #262c1a;
  --o2-on-dark: #f0eee4; --o2-on-dark-2: #b8b8a4; --o2-on-dark-muted: #787868;
  --o2-dark-line: rgba(240,238,228,0.09); --o2-dark-line-strong: rgba(240,238,228,0.16);
}

/* 11. Плазма */
html[data-o2-palette="plazma"] {
  --o2-bg: #f0eef6; --o2-bg-2: #e4e0f0; --o2-bg-3: #d2cce4;
  --o2-ink: #120e1c; --o2-ink-2: #2a2438; --o2-muted: #6a6280;
  --o2-line: rgba(18,14,28,0.10); --o2-line-strong: rgba(18,14,28,0.18);
  --o2-navy: #1a1040; --o2-navy-2: #2a1a58;
  --o2-brass: #c43aa8; --o2-brass-2: #e05cc4;
  --o2-dark: #0a0814; --o2-dark-2: #120e22; --o2-dark-3: #1e1834;
  --o2-on-dark: #f0e8f8; --o2-on-dark-2: #c0a8d8; --o2-on-dark-muted: #807098;
  --o2-dark-line: rgba(240,232,248,0.09); --o2-dark-line-strong: rgba(240,232,248,0.16);
}

/* 12. Прокат */
html[data-o2-palette="prokat"] {
  --o2-bg: #f3f4f6; --o2-bg-2: #e8eaee; --o2-bg-3: #d6dae2;
  --o2-ink: #16181c; --o2-ink-2: #2e323a; --o2-muted: #6a707a;
  --o2-line: rgba(22,24,28,0.10); --o2-line-strong: rgba(22,24,28,0.18);
  --o2-navy: #3a4450; --o2-navy-2: #4e5a68;
  --o2-brass: #8a96a4; --o2-brass-2: #a8b4c0;
  --o2-dark: #121418; --o2-dark-2: #1a1e24; --o2-dark-3: #282e36;
  --o2-on-dark: #eef0f2; --o2-on-dark-2: #b4bac4; --o2-on-dark-muted: #787e88;
  --o2-dark-line: rgba(238,240,242,0.09); --o2-dark-line-strong: rgba(238,240,242,0.16);
}

/* 13. Бронза */
html[data-o2-palette="bronza"] {
  --o2-bg: #f6f1e8; --o2-bg-2: #ece4d6; --o2-bg-3: #ddd0bc;
  --o2-ink: #1a140e; --o2-ink-2: #3a2e22; --o2-muted: #7a6a56;
  --o2-line: rgba(26,20,14,0.10); --o2-line-strong: rgba(26,20,14,0.18);
  --o2-navy: #3a2a18; --o2-navy-2: #524028;
  --o2-brass: #b87828; --o2-brass-2: #d49440;
  --o2-dark: #120e0a; --o2-dark-2: #1c1610; --o2-dark-3: #2a2016;
  --o2-on-dark: #f4ece0; --o2-on-dark-2: #c8b498; --o2-on-dark-muted: #887860;
  --o2-dark-line: rgba(244,236,224,0.09); --o2-dark-line-strong: rgba(244,236,224,0.16);
}

/* 14. Титан */
html[data-o2-palette="titan"] {
  --o2-bg: #f2f0f4; --o2-bg-2: #e6e4ea; --o2-bg-3: #d6d2dc;
  --o2-ink: #16141a; --o2-ink-2: #2e2a34; --o2-muted: #6a6674;
  --o2-line: rgba(22,20,26,0.10); --o2-line-strong: rgba(22,20,26,0.18);
  --o2-navy: #2a2838; --o2-navy-2: #3e3a50;
  --o2-brass: #8a7aa0; --o2-brass-2: #a898b8;
  --o2-dark: #100e14; --o2-dark-2: #18161e; --o2-dark-3: #26242e;
  --o2-on-dark: #f0eef4; --o2-on-dark-2: #b8b4c4; --o2-on-dark-muted: #787484;
  --o2-dark-line: rgba(240,238,244,0.09); --o2-dark-line-strong: rgba(240,238,244,0.16);
}

/* 15. Азот */
html[data-o2-palette="azot"] {
  --o2-bg: #f0f6f8; --o2-bg-2: #e2eef2; --o2-bg-3: #cee2e8;
  --o2-ink: #0e181c; --o2-ink-2: #243438; --o2-muted: #5a7076;
  --o2-line: rgba(14,24,28,0.10); --o2-line-strong: rgba(14,24,28,0.18);
  --o2-navy: #0e3a48; --o2-navy-2: #185868;
  --o2-brass: #2a98b0; --o2-brass-2: #48b4c8;
  --o2-dark: #081418; --o2-dark-2: #0e1e24; --o2-dark-3: #162e36;
  --o2-on-dark: #e8f4f6; --o2-on-dark-2: #a8c8d0; --o2-on-dark-muted: #688890;
  --o2-dark-line: rgba(232,244,246,0.09); --o2-dark-line-strong: rgba(232,244,246,0.16);
}

/* ========== Mobile splash + PWA install ========== */
html.o2-splash-lock,
html.o2-splash-lock body.opus2 {
  overflow: hidden;
}

.o2-splash {
  position: fixed;
  inset: 0;
  z-index: 12000;
  display: grid;
  place-items: center;
  padding: max(1.25rem, env(safe-area-inset-top)) 1.25rem max(1.5rem, env(safe-area-inset-bottom));
  background: var(--o2-dark);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s var(--o2-ease), visibility 0.5s;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  overflow: hidden;
}

.o2-splash[hidden] { display: none !important; }

.o2-splash.is-active {
  opacity: 1;
  visibility: visible;
}

.o2-splash.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.o2-splash__bg {
  position: absolute;
  inset: -4%;
  background: url("../../img/hero/metal-2026.jpg") center / cover no-repeat;
  filter: saturate(0.7) contrast(1.06) brightness(0.55);
  transform: scale(1.08);
  animation: o2SplashKen 16s ease-in-out infinite alternate;
  z-index: 0;
}

.o2-splash__veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(ellipse 60% 50% at 50% 40%, rgba(15,18,24,0.2), rgba(15,18,24,0.82) 72%),
    linear-gradient(180deg, rgba(15,18,24,0.45), rgba(15,18,24,0.88));
}

.o2-splash__stage {
  position: relative;
  z-index: 2;
  width: min(360px, 92vw);
  text-align: center;
  display: grid;
  place-items: center;
  pointer-events: none;
}

.o2-splash__glow {
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184,136,44,0.28), transparent 68%);
  filter: blur(12px);
  opacity: 0.45;
  animation: o2SplashPulse 2s ease-in-out infinite;
}

.o2-splash__logo {
  position: relative;
  width: min(260px, 72vw);
  height: auto;
  margin: 0 auto 1rem;
  opacity: 0;
  transform: scale(0.9) translateY(10px);
  filter:
    drop-shadow(-1px -1px 0 rgba(230, 248, 246, 0.32))
    drop-shadow(1.5px 2px 1px rgba(0, 0, 0, 0.55))
    drop-shadow(0 10px 22px rgba(0, 0, 0, 0.4));
}
.o2-splash__glow { display: none; }

.o2-splash.is-active .o2-splash__logo {
  animation: o2SplashLogo 1.05s var(--o2-ease) 0.06s forwards;
}

.o2-splash__brand { display: none !important; }

.o2-splash__hint {
  margin: 0.35rem 0 0;
  font-size: 0.92rem;
  color: var(--o2-brass-2);
  opacity: 0;
}

.o2-splash__desc {
  margin: 0.55rem 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--o2-on-dark-muted);
  opacity: 0;
  max-width: 28ch;
}

.o2-splash__tap {
  margin: 1.1rem 0 0;
  font-family: var(--o2-f-display);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--o2-brass);
  opacity: 0;
}

.o2-splash.needs-tap .o2-splash__tap {
  animation: o2SplashTap 1.45s ease-in-out infinite;
}

.o2-splash.is-active .o2-splash__brand,
.o2-splash.is-active .o2-splash__hint,
.o2-splash.is-active .o2-splash__desc {
  animation: o2SplashRise 0.85s var(--o2-ease) 0.45s forwards;
}

.o2-splash.is-active .o2-splash__hint { animation-delay: 0.55s; }
.o2-splash.is-active .o2-splash__desc { animation-delay: 0.68s; }

.o2-splash__bar {
  margin: 1.35rem auto 0;
  width: min(150px, 46vw);
  height: 2px;
  border-radius: 999px;
  background: rgba(240,236,227,0.12);
  overflow: hidden;
  opacity: 0;
}

.o2-splash.is-active .o2-splash__bar {
  animation: o2SplashRise 0.5s var(--o2-ease) 0.7s forwards;
}

.o2-splash__bar span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--o2-brass), var(--o2-brass-2), #efe6d0);
}

.o2-splash.is-active .o2-splash__bar span {
  animation: o2SplashBar 2.1s var(--o2-ease) 0.75s forwards;
}

.o2-splash.needs-tap .o2-splash__bar span {
  animation-duration: 7s;
}

.o2-splash__haptic {
  position: absolute;
  inset: 0;
  z-index: 3;
  margin: 0;
  opacity: 0.01;
  cursor: pointer;
}

.o2-splash__haptic input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0.01;
  appearance: none;
  -webkit-appearance: none;
}

@keyframes o2SplashKen {
  from { transform: scale(1.06) translate3d(0,0,0); }
  to   { transform: scale(1.12) translate3d(-1.2%, 1%, 0); }
}
@keyframes o2SplashPulse {
  0%, 100% { opacity: 0.35; transform: scale(1); }
  50%      { opacity: 0.55; transform: scale(1.08); }
}
@keyframes o2SplashLogo {
  to { opacity: 1; transform: scale(1) translateY(0); }
}
@keyframes o2SplashRise {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes o2SplashBar {
  to { width: 100%; }
}
@keyframes o2SplashTap {
  0%, 100% { opacity: 0.35; }
  50%      { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .o2-splash__bg,
  .o2-splash__glow,
  .o2-splash.is-active .o2-splash__logo,
  .o2-splash.is-active .o2-splash__brand,
  .o2-splash.is-active .o2-splash__hint,
  .o2-splash.is-active .o2-splash__desc,
  .o2-splash.is-active .o2-splash__bar,
  .o2-splash.is-active .o2-splash__bar span,
  .o2-splash.needs-tap .o2-splash__tap {
    animation: none !important;
  }
  .o2-splash.is-active .o2-splash__logo,
  .o2-splash.is-active .o2-splash__brand,
  .o2-splash.is-active .o2-splash__hint,
  .o2-splash.is-active .o2-splash__desc,
  .o2-splash.is-active .o2-splash__bar {
    opacity: 1;
    transform: none;
  }
}

@media (min-width: 900px) and (hover: hover) {
  .o2-splash { display: none !important; }
}

/* ============================================================
   THEME · CARDS LIFT · THEME CONTROLS
   ============================================================ */
html[data-o2-theme="dark"] {
  color-scheme: dark;
  --o2-bg:   #12151c;
  --o2-bg-2: #181c26;
  --o2-bg-3: #222836;
  --o2-surface: #1c2230;
  --o2-ink:      #f0ece3;
  --o2-ink-2:    #d8d2c6;
  --o2-muted:    #9a9286;
  --o2-line:         rgba(240,236,227,0.10);
  --o2-line-strong:  rgba(240,236,227,0.18);
  --o2-dark:   #0a0c10;
  --o2-dark-2: #10141c;
  --o2-dark-3: #171d28;
  --o2-link:   #d4a845;
  --o2-navy-2: #3d5a96;
}
html[data-o2-theme="dark"] .o2-nav {
  background: rgba(18, 21, 28, 0.55);
  box-shadow: 0 1px 0 rgba(240, 236, 227, 0.06);
}
html[data-o2-theme="dark"] .o2-nav.is-solid {
  background: rgba(18, 21, 28, 0.9);
  box-shadow: 0 1px 0 rgba(240, 236, 227, 0.08), 0 8px 28px rgba(0, 0, 0, 0.28);
}
html[data-o2-theme="dark"] .o2-nav__links a,
html[data-o2-theme="dark"] .o2-nav__phone,
html[data-o2-theme="dark"] .o2-burger,
html[data-o2-theme="dark"] .o2-theme-toggle {
  color: var(--o2-on-dark);
}
html[data-o2-theme="dark"] body.opus2 {
  background: var(--o2-bg);
  color: var(--o2-ink);
}
/* поля и карточки: тёмная поверхность + читаемый текст */
html[data-o2-theme="dark"] .o2-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%23c0b8a8' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
}
html[data-o2-theme="dark"] .o2-field input:focus,
html[data-o2-theme="dark"] .o2-field select:focus,
html[data-o2-theme="dark"] .o2-field textarea:focus {
  border-color: var(--o2-brass);
  box-shadow: 0 0 0 4px rgba(184, 136, 44, 0.22);
}
html[data-o2-theme="dark"] .o2-calc__result {
  border: 1px solid var(--o2-dark-line-strong);
  background: var(--o2-dark-2);
}
html[data-o2-theme="dark"] .o2-flash--success {
  background: #1a3024; color: #b8e0c4; border-color: #2a5040;
}
html[data-o2-theme="dark"] .o2-flash--error {
  background: #321818; color: #f0b8b8; border-color: #603030;
}
html[data-o2-theme="dark"] .o2-btn--ghost-dark {
  color: var(--o2-brass-2);
  border-color: rgba(212, 168, 69, 0.45);
}
html[data-o2-theme="dark"] .o2-btn--ghost-dark:hover {
  background: var(--o2-brass);
  color: #12151c;
  border-color: var(--o2-brass);
}
html[data-o2-theme="dark"] .o2-why__quote em,
html[data-o2-theme="dark"] .o2-svc-row:hover .o2-svc-row__text h3,
html[data-o2-theme="dark"] .o2-next:hover strong,
html[data-o2-theme="dark"] .o2-req a,
html[data-o2-theme="dark"] .o2-fb__admin-hint a {
  color: var(--o2-link);
}
html[data-o2-theme="dark"] .o2-svc-row__link {
  color: var(--o2-brass-2);
  border-color: rgba(212, 168, 69, 0.4);
}
html {
  transition: background-color 0.35s var(--o2-ease), color 0.35s var(--o2-ease);
}
body.opus2 {
  transition: background-color 0.35s var(--o2-ease), color 0.35s var(--o2-ease);
}

.o2-theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  border: 1px solid var(--o2-line-strong);
  background: rgba(255, 255, 255, 0.35);
  color: var(--o2-ink-2);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
  flex-shrink: 0;
}
.o2-theme-toggle:hover {
  background: rgba(255, 255, 255, 0.55);
  border-color: var(--o2-navy);
  color: var(--o2-navy);
}
.o2-theme-toggle:active { transform: scale(0.94); }
html[data-o2-theme="dark"] .o2-theme-toggle {
  background: rgba(240, 236, 227, 0.08);
  border-color: rgba(240, 236, 227, 0.18);
}
.o2-theme-toggle__moon { display: none; }
html[data-o2-theme="dark"] .o2-theme-toggle__sun { display: none; }
html[data-o2-theme="dark"] .o2-theme-toggle__moon { display: block; }

@media (hover: hover) and (pointer: fine) {
  .o2-svc-row__inner,
  .o2-equip-card,
  .o2-benefit,
  .o2-process-step,
  .o2-shot {
    transition:
      transform 0.28s var(--o2-ease),
      box-shadow 0.28s var(--o2-ease),
      border-color 0.28s;
  }
  .o2-svc-row__inner:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 36px rgba(28, 50, 96, 0.1);
  }
  .o2-equip-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 40px rgba(28, 50, 96, 0.12);
  }
  .o2-benefit:hover { transform: translateY(-3px); }
  .o2-process-step:hover { transform: translateY(-4px); }
  .o2-shot:hover { transform: translateY(-5px); }
}

@media (prefers-reduced-motion: reduce) {
  .o2-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .o2-ripple { animation: none; display: none; }
  html, body.opus2 { transition: none; }
}

/* ---------- Demo feedback board ---------- */
body.opus2:has(.o2-demo-bar) {
  --o2-demo-bar-h: 2.9rem;
  padding-top: var(--o2-demo-bar-h);
}
body.opus2:has(.o2-demo-bar) .o2-nav,
body.opus2:has(.o2-demo-bar) .o2-scroll-progress {
  top: var(--o2-demo-bar-h);
}
.o2-demo-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 110;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 1rem;
  min-height: var(--o2-demo-bar-h, 2.9rem);
  box-sizing: border-box;
  padding: 0.45rem clamp(1rem, 3vw, 1.75rem);
  background: #2a241c;
  color: #f0ece3;
  font-size: 0.88rem;
  line-height: 1.35;
  border-bottom: 1px solid rgba(240, 236, 227, 0.12);
}
.o2-demo-bar__label {
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--o2-brass-2);
}
.o2-demo-bar__text { color: rgba(240, 236, 227, 0.78); flex: 1 1 12rem; }
.o2-demo-bar__link {
  font-weight: 600;
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 0.18em;
  white-space: nowrap;
}
.o2-demo-bar__link:hover { color: var(--o2-brass-2); }

.o2-fb { display: grid; gap: 1.75rem; max-width: 42rem; }
.o2-fb__intro { display: grid; gap: 0.65rem; }
.o2-fb__opt { font-weight: 400; color: var(--o2-muted); }
.o2-fb__form { margin-top: 0.25rem; }
.o2-fb__flash {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}
.o2-fb__flash-item {
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.95rem;
}
.o2-fb__flash-item--ok {
  background: rgba(46, 125, 70, 0.12);
  color: #1e5a32;
  border: 1px solid rgba(46, 125, 70, 0.25);
}
.o2-fb__flash-item--error {
  background: rgba(160, 40, 40, 0.1);
  color: #7a1f1f;
  border: 1px solid rgba(160, 40, 40, 0.22);
}
.o2-fb__list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}
.o2-fb__item {
  display: grid;
  gap: 0.55rem;
  padding: 1.1rem 1.2rem;
  background: var(--o2-bg);
  border: 1px solid var(--o2-line);
  border-radius: 0.65rem;
}
.o2-fb__item--done {
  opacity: 0.55;
  background: var(--o2-bg-2);
}
.o2-fb__item--done .o2-fb__text { text-decoration: line-through; }
.o2-fb__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.55rem;
  align-items: baseline;
  font-size: 0.82rem;
  color: var(--o2-muted);
}
.o2-fb__meta strong { color: var(--o2-ink); font-weight: 600; }
.o2-fb__time { margin-left: auto; font-variant-numeric: tabular-nums; }
.o2-fb__text {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.5;
  color: var(--o2-ink-2);
  white-space: pre-wrap;
}
.o2-fb__done-form { margin: 0; }
.o2-fb__done-btn {
  appearance: none;
  border: 0;
  background: none;
  padding: 0;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--o2-navy);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 0.15em;
}
.o2-fb__done-btn:hover { color: var(--o2-brass); }

html[data-o2-theme="dark"] .o2-demo-bar { background: #12151c; }
html[data-o2-theme="dark"] .o2-fb__item {
  background: var(--o2-dark-2);
  border-color: var(--o2-dark-line);
}
html[data-o2-theme="dark"] .o2-fb__item--done { background: var(--o2-dark-3); }
html[data-o2-theme="dark"] .o2-fb__meta strong,
html[data-o2-theme="dark"] .o2-fb__text { color: var(--o2-on-dark); }
html[data-o2-theme="dark"] .o2-fb__done-btn { color: var(--o2-brass-2); }
html[data-o2-theme="dark"] .o2-fb__flash-item--ok {
  background: rgba(80, 160, 100, 0.15);
  color: #b8e0c0;
  border-color: rgba(80, 160, 100, 0.3);
}
html[data-o2-theme="dark"] .o2-fb__flash-item--error {
  background: rgba(200, 80, 80, 0.15);
  color: #f0b0b0;
  border-color: rgba(200, 80, 80, 0.3);
}

@media (max-width: 640px) {
  .o2-fb__time { margin-left: 0; width: 100%; }
}

.o2-fb__admin-hint {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  color: var(--o2-muted);
}
.o2-fb__admin-hint a { color: var(--o2-navy); font-weight: 600; }
.o2-fb__admin-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
  margin: 0 0 1.25rem;
  padding: 0.75rem 1rem;
  background: var(--o2-bg);
  border: 1px solid var(--o2-line);
  border-radius: 0.55rem;
  font-size: 0.9rem;
  font-weight: 600;
}
.o2-fb__admin-bar form { margin: 0; }
.o2-fb__admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  margin-top: 0.65rem;
}
.o2-fb__admin-btn {
  appearance: none;
  border: 1px solid var(--o2-line-strong);
  background: var(--o2-bg-2);
  color: var(--o2-ink);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.4rem 0.75rem;
  border-radius: 0.4rem;
  cursor: pointer;
  text-decoration: none;
}
a.o2-fb__admin-btn { display: inline-flex; align-items: center; }
.o2-fb__admin-btn:hover { border-color: var(--o2-navy); color: var(--o2-navy); }
.o2-fb__admin-btn--danger { color: #8a1f1f; border-color: rgba(138, 31, 31, 0.35); }
.o2-fb__admin-btn--danger:hover { background: rgba(138, 31, 31, 0.08); }
.o2-fb__edit { display: grid; gap: 0.35rem; }
.o2-fb__edit-grid { margin: 0; }
.o2-fb__edit .o2-fb__time {
  margin: 0.35rem 0 0;
  font-size: 0.78rem;
  color: var(--o2-muted);
}
html[data-o2-theme="dark"] .o2-fb__admin-bar {
  background: var(--o2-dark-2);
  border-color: var(--o2-dark-line);
}
html[data-o2-theme="dark"] .o2-fb__admin-btn {
  background: var(--o2-dark-3);
  border-color: var(--o2-dark-line-strong);
  color: var(--o2-on-dark);
}
html[data-o2-theme="dark"] .o2-fb__admin-hint a { color: var(--o2-brass-2); }

/* ============================================================
   LEGAL DOCS + COOKIE BAR
   ============================================================ */
.o2-legal {
  max-width: 46rem;
  color: var(--o2-ink-2);
  font-size: 0.98rem;
  line-height: 1.65;
}
.o2-legal__meta {
  margin: 0 0 1.5rem;
  font-size: 0.85rem;
  color: var(--o2-muted);
}
.o2-legal h2 {
  margin: 1.75rem 0 0.65rem;
  font-family: var(--o2-f-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--o2-ink);
  letter-spacing: -0.02em;
}
.o2-legal h3 {
  margin: 1.1rem 0 0.4rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--o2-ink);
}
.o2-legal p, .o2-legal li { margin: 0 0 0.65rem; }
.o2-legal ul { margin: 0 0 0.85rem; padding-left: 1.2rem; }
.o2-legal a { color: var(--o2-link); text-underline-offset: 2px; }
.o2-legal__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 2rem;
}

.o2-cookie {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 140;
  padding: 0.85rem 1rem calc(0.85rem + env(safe-area-inset-bottom, 0px));
  background: rgba(18, 22, 32, 0.96);
  border-top: 1px solid rgba(240, 236, 227, 0.12);
  box-shadow: 0 -8px 28px rgba(0, 0, 0, 0.28);
}
.o2-cookie__inner {
  width: var(--o2-wrap);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem 1.25rem;
}
.o2-cookie__text {
  margin: 0;
  flex: 1 1 16rem;
  font-size: 0.86rem;
  line-height: 1.45;
  color: var(--o2-on-dark-2);
}
.o2-cookie__text a { color: var(--o2-brass-2); text-underline-offset: 2px; }
.o2-cookie__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  flex-shrink: 0;
}
@media (max-width: 980px) {
  .o2-cookie { bottom: calc(3.6rem + env(safe-area-inset-bottom, 0px)); }
}

/* ========== Заявка FX: панель настройки (?zaytune=1) ========== */
/* важнее .spark-tune { display:none } из spark-tune.css */
html .o2-zay-tune.spark-tune,
.o2-zay-tune.spark-tune {
  display: flex !important;
  flex-direction: column;
  z-index: 17000;
  right: max(0.75rem, env(safe-area-inset-right));
  left: auto;
  bottom: max(0.75rem, env(safe-area-inset-bottom));
  width: min(300px, calc(100vw - 1.5rem));
  max-height: min(78vh, 640px);
}
.o2-zay-tune.is-min .spark-tune__body {
  display: none;
}
.o2-zay-tune__body {
  padding: 0.55rem 0.7rem 0.75rem;
  overflow: auto;
  display: grid;
  gap: 0.4rem;
}
.o2-zay-tune__row {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 0.1rem 0.45rem;
  align-items: center;
  margin: 0;
  color: rgba(232, 238, 244, 0.88);
  font-size: 0.68rem;
}
.o2-zay-tune__row span {
  grid-column: 1;
}
.o2-zay-tune__row em {
  grid-column: 2;
  font-style: normal;
  font-variant-numeric: tabular-nums;
  color: #9ad4ff;
  min-width: 2.6em;
  text-align: right;
}
.o2-zay-tune__row input[type="range"] {
  grid-column: 1 / -1;
  width: 100%;
  margin: 0;
  accent-color: #d4a845;
}
.o2-zay-tune__actions {
  display: flex;
  gap: 0.4rem;
  margin: 0;
  position: sticky;
  top: 0;
  z-index: 2;
  padding-bottom: 0.25rem;
  background: rgba(12, 16, 22, 0.96);
}
.o2-zay-tune__btn {
  flex: 1;
  border: 0;
  border-radius: 8px;
  padding: 0.45rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  background: #d4a845;
  color: #1a1408;
}
.o2-zay-tune__btn--ghost {
  background: rgba(255, 255, 255, 0.08);
  color: #e8eef4;
  border: 1px solid rgba(255, 255, 255, 0.14);
}
.o2-zay-tune__hint {
  margin: 0.2rem 0 0;
  font-size: 0.62rem;
  color: rgba(200, 210, 220, 0.55);
  line-height: 1.35;
}

/* ========== Заявка: сборка из вселенной АСТРЫ ========== */
html.o2-zay-fx-lock,
html.o2-zay-fx-lock body {
  overflow: hidden !important;
}
.o2-zay-fx {
  position: fixed;
  inset: 0;
  z-index: 16000;
  display: grid;
  place-items: center;
  background: #000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s ease, visibility 0.28s;
  pointer-events: none;
}
.o2-zay-fx.is-on {
  opacity: 1;
  visibility: visible;
  pointer-events: all;
}
.o2-zay-fx.is-out {
  opacity: 0;
  transition: opacity 0.2s ease;
}
.o2-zay-fx__cvs {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
.o2-zay-fx__veil {
  display: none;
}
.o2-zay-fx__stage {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 1rem;
  pointer-events: none;
  transform: translateY(14px);
  opacity: 0;
  transition: opacity 0.45s ease, transform 0.45s ease;
  /* подпись под логотипом на фазе сборки */
  margin-top: min(38vh, 300px);
}
.o2-zay-fx.is-label .o2-zay-fx__stage {
  opacity: 1;
  transform: translateY(0);
}
/* надпись остаётся вместе с логотипом до ухода оверлея */
.o2-zay-fx.is-fused .o2-zay-fx__stage {
  opacity: 1;
  transform: translateY(0);
}
/* как нижняя строка логотипа, красная «строка загрузки» */
.o2-zay-fx__load {
  margin: 0;
  font-family: system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(0.62rem, 1.6vw, 0.78rem);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #e11d2e;
  text-shadow: 0 0 10px rgba(225, 29, 46, 0.45);
  animation: o2-zay-load-pulse 1.05s ease-in-out infinite;
}
.o2-zay-fx__load::after {
  content: "…";
  margin-left: 0.05em;
  opacity: 0.85;
}
@keyframes o2-zay-load-pulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}
.o2-form.o2-zay-arrive {
  opacity: 0;
  transform: translateY(18px) scale(0.985);
  filter: blur(6px);
}
.o2-form.o2-zay-arrive.is-in {
  opacity: 1;
  transform: none;
  filter: none;
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
    filter 0.7s ease;
  box-shadow: 0 0 0 1px rgba(184, 136, 44, 0.35), 0 18px 48px rgba(20, 28, 40, 0.14);
}
@media (prefers-reduced-motion: reduce) {
  .o2-zay-fx,
  .o2-form.o2-zay-arrive,
  .o2-form.o2-zay-arrive.is-in {
    transition: none !important;
    filter: none !important;
    transform: none !important;
  }
  .o2-zay-fx__load {
    animation: none !important;
    opacity: 1;
  }
}

/* ============================================================
   Читаемость текста (Нержавейка): контраст не ниже WCAG AA
   ============================================================ */
html[data-o2-palette="nerzh"] .o2-btn--brass,
html[data-o2-palette="nerzh"] .o2-filter button.is-active { background: #2a7c76; border-color: #2a7c76; }
html[data-o2-palette="nerzh"] .o2-btn--brass:hover { background: #2f8983; }
html[data-o2-palette="nerzh"] .o2-ticker__track span,
html[data-o2-palette="nerzh"] .o2-equip-card__detail { color: var(--o2-on-dark-2); }
html[data-o2-palette="nerzh"] .o2-calc__lead .o2-consent { color: var(--o2-on-dark-2); }
html[data-o2-palette="nerzh"] .o2-calc__lead .o2-consent a { color: #9fe8df; }
html[data-o2-palette="nerzh"][data-o2-theme="dark"] .o2-file__hint { color: var(--o2-on-dark-2); }

html[data-o2-palette="nerzh"]:not([data-o2-theme="dark"]) { --o2-muted: #546262; }
html[data-o2-palette="nerzh"]:not([data-o2-theme="dark"]) .o2-nav__links a[aria-current="page"] {
  color: #1f716b;
  border-color: #3a9a94;
}
html[data-o2-palette="nerzh"]:not([data-o2-theme="dark"]) .o2-info-card:not(.o2-info-card--navy) .o2-eyebrow,
html[data-o2-palette="nerzh"]:not([data-o2-theme="dark"]) .o2-machine__spec,
html[data-o2-palette="nerzh"]:not([data-o2-theme="dark"]) .o2-svc-row__num,
html[data-o2-palette="nerzh"]:not([data-o2-theme="dark"]) .o2-benefit__num,
html[data-o2-palette="nerzh"]:not([data-o2-theme="dark"]) .o2-values span { color: #23736d; }