/* critical-hero: first screen only; full style.css loads deferred */

/* --- style.css L5-139 --- */
/* ----- HEADER ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-stage) 82%, transparent);
  backdrop-filter: blur(var(--blur)) saturate(160%);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 2px 28px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: calc(var(--t-sm) * 1.55);
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.1;
  white-space: nowrap;
  text-decoration: none;
  color: #000;
  background: linear-gradient(180deg, var(--btn-top), var(--btn-face));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.35),
    0 3px 0 var(--btn-shadow),
    0 8px 20px rgba(0, 0, 0, 0.18),
    0 0 16px -4px var(--glow-green);
  transition: transform 0.12s, box-shadow 0.12s;
}

.brand__btn:hover {
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    0 5px 0 var(--btn-shadow),
    0 12px 28px rgba(0, 0, 0, 0.22),
    0 0 24px var(--glow-green);
}

.brand__btn:active {
  transform: translateY(2px);
  box-shadow:
    inset 0 2px 6px rgba(0, 0, 0, 0.2),
    0 1px 0 var(--btn-shadow);
}

.brand__logo-set {
  flex-shrink: 0;
  display: block;
  width: 48px;
  height: 48px;
}

.brand__logo {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: block;
  object-fit: contain;
}

.brand__logo--light,
.brand__logo--proekt {
  display: none;
}

[data-theme="light"] .brand__logo--dark,
[data-theme="light"] .brand__logo--proekt,
[data-theme="proektantskaya"] .brand__logo--dark,
[data-theme="proektantskaya"] .brand__logo--light,
[data-theme="dark"] .brand__logo--light,
[data-theme="dark"] .brand__logo--proekt {
  display: none;
}

[data-theme="dark"] .brand__logo--dark,
[data-theme="light"] .brand__logo--light,
[data-theme="proektantskaya"] .brand__logo--proekt {
  display: block;
}

.site-nav {
  display: flex;
  flex-wrap: nowrap;
  gap: clamp(10px, 1.35vw, 20px);
  margin-left: auto;
  font-size: calc(var(--t-sm) * 1.5);
  white-space: nowrap;
}

.site-nav a { color: var(--ink-soft); transition: color 0.15s; }
.site-nav a:hover { color: var(--ink); }
.site-nav a.is-active { color: var(--neon-green); font-weight: 600; }
.site-nav a.is-disabled { opacity: 0.4; pointer-events: none; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.icon-btn {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--bg-tile);
  color: var(--ink);
  animation: spectral-border 8s ease-in-out infinite;
  transition: transform 0.2s;
}

.icon-btn:hover { transform: scale(1.05); }

.menu-toggle { display: none; }

/* --- style.css L282-447 --- */
.stage {
  position: relative;
  border-radius: var(--radius-stage);
  background: var(--bg-stage);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-stage);
  backdrop-filter: blur(var(--blur)) saturate(160%);
  overflow: hidden;
}

.stage--hero {
  overflow: visible;
  animation: spectral-border 10s ease-in-out infinite;
}

/* угловые метки — связь всех блоков */
.stage::before,
.stage::after {
  content: "";
  position: absolute;
  width: 48px;
  height: 48px;
  pointer-events: none;
  opacity: 0.55;
}

.stage::before {
  top: 0; left: 0;
  border-top: 2px solid var(--neon-green);
  border-left: 2px solid var(--neon-green);
  border-radius: var(--radius-stage) 0 0 0;
  animation: spectral-corner-tl 8s ease-in-out infinite;
}

.stage::after {
  bottom: 0; right: 0;
  border-bottom: 2px solid var(--neon-cyan);
  border-right: 2px solid var(--neon-cyan);
  border-radius: 0 0 var(--radius-stage) 0;
  animation: spectral-corner-br 8s ease-in-out infinite;
}

.stage__glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
}

.stage__glow--spectral {
  background:
    radial-gradient(ellipse 60% 80% at 20% 50%, var(--glow-green), transparent 70%),
    radial-gradient(ellipse 50% 70% at 80% 30%, var(--glow-blue), transparent 65%),
    radial-gradient(ellipse 45% 60% at 70% 80%, var(--glow-orange), transparent 60%),
    radial-gradient(ellipse 40% 55% at 40% 20%, var(--glow-cyan), transparent 55%);
  opacity: 0.55;
  animation: spectral-glow-shift 10s ease-in-out infinite;
}

.stage__neon-ring {
  position: absolute;
  inset: -1px;
  pointer-events: none;
  border-radius: inherit;
  padding: 2px;
  background: conic-gradient(
    from 0deg,
    var(--neon-green),
    var(--neon-blue),
    var(--neon-orange),
    var(--neon-cyan),
    var(--neon-green)
  );
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.7;
  animation: ring-spin 12s linear infinite;
  animation-play-state: paused;
}

.stage--hero:not(.is-ring-home):not(.is-ring-frozen) .stage__neon-ring {
  animation-play-state: running;
}

@keyframes ring-spin {
  to { transform: rotate(360deg); }
}

.stage--hero.is-ring-frozen .stage__neon-ring {
  animation-play-state: paused;
}

.stage--hero.is-ring-home .stage__neon-ring {
  animation: none;
  transform: rotate(0deg);
}

.stage--hero.is-ring-frozen,
.stage--hero.is-ring-home {
  animation-play-state: paused;
}

.stage--hero.is-ring-frozen::before,
.stage--hero.is-ring-frozen::after,
.stage--hero.is-ring-home::before,
.stage--hero.is-ring-home::after {
  animation-play-state: paused;
}

@keyframes spectral-glow-shift {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  25% { opacity: 0.65; transform: scale(1.02) translateX(2%); }
  50% { opacity: 0.5; transform: scale(1.01) translateX(-2%); }
  75% { opacity: 0.7; transform: scale(1.03); }
}

@keyframes spectral-border {
  0%, 100% {
    border-color: color-mix(in srgb, var(--neon-green) 50%, var(--line));
    box-shadow: var(--shadow-stage), 0 0 50px -10px var(--glow-green);
  }
  25% {
    border-color: color-mix(in srgb, var(--neon-blue) 50%, var(--line));
    box-shadow: var(--shadow-stage), 0 0 50px -10px var(--glow-blue);
  }
  50% {
    border-color: color-mix(in srgb, var(--neon-orange) 50%, var(--line));
    box-shadow: var(--shadow-stage), 0 0 50px -10px var(--glow-orange);
  }
  75% {
    border-color: color-mix(in srgb, var(--neon-cyan) 50%, var(--line));
    box-shadow: var(--shadow-stage), 0 0 50px -10px var(--glow-cyan);
  }
}

@keyframes spectral-corner-tl {
  0%, 100% { border-top-color: var(--neon-green); border-left-color: var(--neon-green); filter: drop-shadow(0 0 8px var(--glow-green)); }
  25% { border-top-color: var(--neon-blue); border-left-color: var(--neon-blue); filter: drop-shadow(0 0 10px var(--glow-blue)); }
  50% { border-top-color: var(--neon-orange); border-left-color: var(--neon-orange); filter: drop-shadow(0 0 10px var(--glow-orange)); }
  75% { border-top-color: var(--neon-cyan); border-left-color: var(--neon-cyan); filter: drop-shadow(0 0 10px var(--glow-cyan)); }
}

@keyframes spectral-corner-br {
  0%, 100% { border-bottom-color: var(--neon-cyan); border-right-color: var(--neon-cyan); filter: drop-shadow(0 0 8px var(--glow-cyan)); }
  25% { border-bottom-color: var(--neon-orange); border-right-color: var(--neon-orange); filter: drop-shadow(0 0 10px var(--glow-orange)); }
  50% { border-bottom-color: var(--neon-green); border-right-color: var(--neon-green); filter: drop-shadow(0 0 10px var(--glow-green)); }
  75% { border-bottom-color: var(--neon-blue); border-right-color: var(--neon-blue); filter: drop-shadow(0 0 10px var(--glow-blue)); }
}

@keyframes spectral-text {
  0%, 100% { color: var(--neon-green); text-shadow: 0 0 14px var(--glow-green); }
  25% { color: var(--neon-blue); text-shadow: 0 0 14px var(--glow-blue); }
  50% { color: var(--neon-orange); text-shadow: 0 0 14px var(--glow-orange); }
  75% { color: var(--neon-cyan); text-shadow: 0 0 14px var(--glow-cyan); }
}

.stage__body {
  position: relative;
  z-index: 1;
  padding: clamp(24px, 4vw, 40px);
}

.stage__body--flush { padding: 0; }


/* --- style.css L533-548 --- */
[data-theme="light"] .hero-head__l2 {
  color: var(--burgundy);
}

[data-theme="light"] .feature-card__text {
  color: var(--green-heading);
}

[data-theme="light"] .feature-card__text::after {
  background: var(--green-heading-strong);
  box-shadow: 2px 4px 6px rgba(40, 32, 20, 0.18);
}

[data-theme="light"] .hero-caption {
  color: var(--green-heading);
}

/* --- style.css L580-593 --- */
[data-theme="proektantskaya"] .hero-head__l2,
[data-theme="proektantskaya"] .hero-caption,
[data-theme="proektantskaya"] .feature-card__text,
[data-theme="proektantskaya"] .tile__label,
[data-theme="proektantskaya"] .step h3,
[data-theme="proektantskaya"] .metro__year,
[data-theme="proektantskaya"] .kv__row dt,
[data-theme="proektantskaya"] #about .about-lead .thesis {
  color: var(--accent);
}

[data-theme="proektantskaya"] .feature-card__text::after {
  background: var(--accent);
}

/* --- style.css L603-1020 --- */
/* ----- HERO HEAD — две строки сверху ----- */
.hero-page { padding-block: clamp(28px, 5vw, 48px); }

.landing-page .wrap--hero {
  padding-block: clamp(28px, 5vw, 48px);
}

.landing-page > .wrap:not(.wrap--hero) {
  padding-block: clamp(32px, 5vw, 56px);
}

.landing-page {
  padding-bottom: 0;
}

.landing-page > .wrap:last-of-type {
  margin-bottom: clamp(80px, 12vh, 180px);
}

.landing-page .about-lead[id],
.landing-page > .wrap[id],
.landing-page .sv-request {
  scroll-margin-top: var(--site-header-offset);
}

.hero-head {
  text-align: left;
  margin-top: -32px;
  margin-bottom: clamp(24px, 4vw, 36px);
  padding-bottom: clamp(20px, 3vw, 28px);
  border-bottom: 1px solid var(--line);
}

.hero-head__l1 {
  font-size: clamp(1rem, 2.35vw, 3rem);
  line-height: 1;
  margin-bottom: 0;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: -0.01em;
  color: #141210;
}

[data-theme="dark"] .hero-head__l1 {
  color: var(--neon-orange);
}

[data-theme="proektantskaya"] .hero-head__l1 {
  color: #1a1a1a;
}

.hero-head__l2 {
  font-size: clamp(1.875rem, 3.1vw, 2.625rem);
  line-height: 1;
  margin-top: 0;
  letter-spacing: 0.02em;
  color: var(--accent);
  font-weight: 700;
}

/* ----- HERO — картинка + 4 блока, половина за краем ----- */
.hero-showcase {
  position: relative;
  margin: 0;
}

.hero-showcase__scene {
  position: relative;
  overflow: visible;
  line-height: 0;
}

.hero-ring-toggle {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 5;
  width: 46px;
  height: 46px;
  padding: 0;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  overflow: visible;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 38% 32%, rgba(255, 255, 255, 0.55) 0%, rgba(255, 255, 255, 0.08) 28%, transparent 52%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.28) 0%, rgba(255, 255, 255, 0.06) 42%, rgba(255, 255, 255, 0.02) 100%);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid rgba(255, 255, 255, 0.38);
  box-shadow:
    inset 0 3px 10px rgba(255, 255, 255, 0.42),
    inset 0 -5px 14px rgba(0, 0, 0, 0.18),
    0 0 22px 6px rgba(74, 222, 128, 0.45),
    0 8px 20px rgba(0, 0, 0, 0.28);
  transition: transform 0.15s, box-shadow 0.15s, opacity 0.15s;
}

.hero-ring-toggle::before {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74, 222, 128, 0.72) 0%, rgba(74, 222, 128, 0.28) 42%, transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.hero-ring-toggle::after {
  content: "";
  position: absolute;
  top: 12%;
  left: 18%;
  width: 26%;
  height: 20%;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.55);
  filter: blur(1px);
  pointer-events: none;
  z-index: 1;
}

.hero-ring-toggle:hover {
  transform: scale(1.07);
  box-shadow:
    inset 0 3px 10px rgba(255, 255, 255, 0.48),
    inset 0 -5px 14px rgba(0, 0, 0, 0.18),
    0 0 28px 8px rgba(74, 222, 128, 0.58),
    0 10px 24px rgba(0, 0, 0, 0.32);
}

.hero-ring-toggle.is-paused {
  opacity: 0.78;
  box-shadow:
    inset 0 3px 10px rgba(255, 255, 255, 0.32),
    inset 0 -5px 14px rgba(0, 0, 0, 0.18),
    0 0 16px 4px rgba(74, 222, 128, 0.32),
    0 6px 16px rgba(0, 0, 0, 0.24);
}

.hero-ring-toggle__icon {
  position: relative;
  z-index: 2;
  display: block;
  width: 22px;
  height: 22px;
  color: var(--neon-orange);
  filter: drop-shadow(0 0 4px rgba(249, 115, 22, 0.55));
}

[data-theme="proektantskaya"] .hero-ring-toggle__icon {
  color: #1a3a6b;
  filter: drop-shadow(0 0 4px rgba(26, 58, 107, 0.45));
}

[data-theme="proektantskaya"] .hero-ring-toggle {
  box-shadow:
    inset 0 3px 10px rgba(255, 255, 255, 0.42),
    inset 0 -5px 14px rgba(0, 0, 0, 0.18),
    0 0 22px 6px rgba(34, 211, 238, 0.48),
    0 8px 20px rgba(0, 0, 0, 0.28);
}

[data-theme="proektantskaya"] .hero-ring-toggle::before {
  background: radial-gradient(circle, rgba(34, 211, 238, 0.75) 0%, rgba(56, 189, 248, 0.32) 42%, transparent 72%);
}

[data-theme="proektantskaya"] .hero-ring-toggle:hover {
  box-shadow:
    inset 0 3px 10px rgba(255, 255, 255, 0.48),
    inset 0 -5px 14px rgba(0, 0, 0, 0.18),
    0 0 28px 8px rgba(34, 211, 238, 0.62),
    0 10px 24px rgba(0, 0, 0, 0.32);
}

[data-theme="proektantskaya"] .hero-ring-toggle.is-paused {
  box-shadow:
    inset 0 3px 10px rgba(255, 255, 255, 0.32),
    inset 0 -5px 14px rgba(0, 0, 0, 0.18),
    0 0 16px 4px rgba(34, 211, 238, 0.35),
    0 6px 16px rgba(0, 0, 0, 0.24);
}

.hero-showcase__media {
  overflow: hidden;
  border-radius: var(--radius-stage) var(--radius-stage) 0 0;
  line-height: 0;
}

.hero-showcase__img {
  width: 100%;
  height: auto;
  display: block;
}

[data-theme="dark"] .hero-showcase__media {
  aspect-ratio: 4 / 3;
}

[data-theme="dark"] .hero-showcase__img--dark {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 24% center;
  transform: none;
}

.hero-showcase__img--day { display: none; }

[data-theme="light"] .hero-showcase__img--dark,
[data-theme="proektantskaya"] .hero-showcase__img--dark {
  display: none;
}

[data-theme="light"] .hero-showcase__img--day-light {
  display: block;
}

[data-theme="proektantskaya"] .hero-showcase__img--day-proekt {
  display: block;
}

.stage:not(.stage--hero) .stage__neon-ring {
  display: none;
}

.hero-features {
  position: absolute;
  top: 14%;
  right: 0;
  transform: translateX(50%);
  width: min(360px, 34vw);
  display: grid;
  gap: clamp(10px, 1.4vw, 14px);
  z-index: 3;
  line-height: 1.4;
}

.feature-card {
  --card-accent: var(--neon-green);
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px 18px 14px 16px;
  border-radius: 20px;
  background: #ede4d4;
  backdrop-filter: none;
  border: 2.5px solid color-mix(in srgb, var(--card-accent) 72%, #9a8b72);
  box-shadow:
    0 10px 28px rgba(40, 32, 20, 0.22),
    0 0 0 1px rgba(255, 255, 255, 0.45),
    0 0 22px color-mix(in srgb, var(--card-accent) 55%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.55);
  overflow: hidden;
  animation: feature-pulse 5s ease-in-out infinite;
}

.feature-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8%;
  bottom: 8%;
  width: 5px;
  border-radius: 0 4px 4px 0;
  background: var(--card-accent);
  box-shadow:
    0 0 10px var(--card-accent),
    0 0 22px var(--card-accent),
    4px 0 18px color-mix(in srgb, var(--card-accent) 75%, transparent);
}

.feature-card::after {
  content: "";
  position: absolute;
  top: 10px;
  right: 12px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--card-accent);
  box-shadow:
    0 0 8px var(--card-accent),
    0 0 16px var(--card-accent);
  opacity: 0.9;
}

.feature-card--green  { --card-accent: var(--neon-green);  animation-delay: 0s; }
.feature-card--blue   { --card-accent: var(--neon-blue);   animation-delay: -1.2s; }
.feature-card--orange { --card-accent: var(--neon-orange); animation-delay: -2.4s; }
.feature-card--cyan   { --card-accent: var(--neon-cyan);   animation-delay: -3.6s; }

.feature-card__icon {
  width: 44px;
  height: 44px;
  color: var(--card-accent);
  filter:
    drop-shadow(0 0 6px var(--card-accent))
    drop-shadow(0 0 14px var(--card-accent));
}

.feature-card__text {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.35vw, 1.2rem);
  font-weight: 700;
  line-height: 1.25;
  color: #5c3a12;
  position: relative;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.feature-card__text::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 56px;
  height: 2px;
}

@keyframes feature-pulse {
  0%, 100% {
    box-shadow:
      0 10px 28px rgba(40, 32, 20, 0.22),
      0 0 0 1px rgba(255, 255, 255, 0.45),
      0 0 18px color-mix(in srgb, var(--card-accent) 45%, transparent),
      inset 0 1px 0 rgba(255, 255, 255, 0.55);
    border-color: color-mix(in srgb, var(--card-accent) 65%, #9a8b72);
  }
  50% {
    box-shadow:
      0 12px 32px rgba(40, 32, 20, 0.26),
      0 0 0 1px rgba(255, 255, 255, 0.5),
      0 0 32px color-mix(in srgb, var(--card-accent) 72%, transparent),
      inset 0 1px 0 rgba(255, 255, 255, 0.6);
    border-color: color-mix(in srgb, var(--card-accent) 88%, #9a8b72);
  }
}

[data-theme="dark"] .feature-card {
  background: rgba(6, 12, 22, 0.88);
  backdrop-filter: blur(18px) saturate(170%);
  border: 2.5px solid color-mix(in srgb, var(--card-accent) 55%, rgba(255, 255, 255, 0.1));
  box-shadow:
    0 10px 36px rgba(0, 0, 0, 0.5),
    0 0 28px -4px color-mix(in srgb, var(--card-accent) 60%, transparent);
  animation: feature-pulse-dark 5s ease-in-out infinite;
}

[data-theme="dark"] .feature-card__text {
  color: var(--neon-orange);
}

[data-theme="dark"] .feature-card__text::after {
  background: var(--neon-orange);
  box-shadow: 0 0 10px var(--glow-orange);
}

[data-theme="light"] .hero-features .feature-card,
[data-theme="light"] .hero-features .feature-card--green,
[data-theme="light"] .hero-features .feature-card--blue,
[data-theme="light"] .hero-features .feature-card--orange,
[data-theme="light"] .hero-features .feature-card--cyan {
  --card-accent: var(--burgundy);
  border-color: color-mix(in srgb, var(--burgundy) 48%, #9a8b72);
}

[data-theme="light"] .feature-card__icon {
  color: var(--burgundy);
  filter: none;
}

[data-theme="light"] .feature-card {
  animation: none;
  box-shadow: var(--sh-rd-lg), var(--sh-rd-sm);
}

[data-theme="light"] .feature-card::before {
  background: var(--burgundy);
  box-shadow: 3px 5px 8px rgba(40, 32, 20, 0.14);
}

[data-theme="light"] .feature-card::after {
  background: var(--burgundy);
  box-shadow: var(--sh-rd-sm);
}

@keyframes feature-pulse-dark {
  0%, 100% {
    box-shadow:
      0 10px 36px rgba(0, 0, 0, 0.5),
      0 0 24px -4px color-mix(in srgb, var(--card-accent) 55%, transparent);
    border-color: color-mix(in srgb, var(--card-accent) 50%, rgba(255, 255, 255, 0.1));
  }
  50% {
    box-shadow:
      0 12px 40px rgba(0, 0, 0, 0.55),
      0 0 36px -2px color-mix(in srgb, var(--card-accent) 78%, transparent);
    border-color: color-mix(in srgb, var(--card-accent) 75%, rgba(255, 255, 255, 0.14));
  }
}

.hero-caption {
  padding: 16px clamp(20px, 3vw, 32px);
  font-family: var(--font-display);
  font-size: var(--t-hero-caption);
  line-height: 1.2;
  font-weight: 700;
  color: var(--neon-green);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
  text-shadow: none;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* --- style.css L3360-3408 --- */
@media (max-width: 900px) {
  .wrap--hero { padding-right: var(--pad); }

  .hero-features {
    transform: translateX(35%);
    width: min(300px, 42vw);
  }

  .feature-card__text { font-size: clamp(0.9rem, 2.2vw, 1.05rem); }

  .menu-toggle { display: grid; }

  .site-nav {
    position: fixed;
    inset: 68px 0 auto 0;
    flex-direction: column;
    flex-wrap: wrap;
    margin-right: 0;
    white-space: normal;
    background: var(--bg-stage);
    border-bottom: 1px solid var(--line);
    padding: 20px var(--pad);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s, opacity 0.2s;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 640px) {
  .hero-showcase__scene { display: flex; flex-direction: column; }

  .hero-features {
    position: static;
    transform: none;
    width: 100%;
    padding: 14px;
    background: rgba(6, 12, 22, 0.95);
    border-radius: 0 0 var(--radius-stage) var(--radius-stage);
  }

  .feature-card__text { font-size: 1rem; }
}

/* pending full CSS: hide below-hero to avoid FOUC */
html.css-pending .wrap--hero > .stage:not(.stage--hero),
html.css-pending .landing-page > .wrap:not(.wrap--hero),
html.css-pending .sv-request {
  visibility: hidden;
}