/* ============================================
   SINCLAIR STUDIOS
   ============================================ */

:root {
  --black: #000000;
  --black-2: #0a0a0a;
  --black-3: #111111;
  --panel: #0d0d0d;
  --border: rgba(212, 175, 55, 0.18);
  --border-strong: rgba(212, 175, 55, 0.45);
  --gold: #d4af37;
  --gold-light: #e8c87c;
  --gold-dim: #8a7028;
  --ink: #f5f0e6;
  --ink-soft: #b8b3a8;
  --ink-mute: #7a7468;

  --f-display: "Cormorant Garamond", "Times New Roman", serif;
  --f-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  --gutter: clamp(20px, 4vw, 64px);
  --max: 1440px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--ink);
  font-family: var(--f-body);
  font-weight: 300;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

/* ============================================
   NAV
   ============================================ */
.nav {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding: 28px var(--gutter);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}
.brand-mark {
  display: block;
  height: 36px;
  width: auto;
  filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.35));
}
.brand-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.brand-name {
  font-family: var(--f-body);
  font-size: 18px;
  font-weight: 300;
  letter-spacing: 0.02em;
  color: var(--ink);
}
.brand-name strong {
  font-weight: 600;
  color: var(--gold);
}
.brand-tag {
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.32em;
  color: var(--ink-mute);
  border-top: 1px solid var(--border);
  padding-top: 4px;
}
.nav-links {
  display: flex;
  gap: 44px;
  list-style: none;
  margin-left: auto;
  margin-right: 32px;
}
.nav-links a {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--ink);
  position: relative;
  padding: 6px 0;
  transition: color 0.3s ease;
}
.nav-links a:hover { color: var(--gold); }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 1px;
  width: 0;
  background: var(--gold);
  transition: width 0.3s ease;
}
.nav-links a:hover::after { width: 100%; }
.nav-menu {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-menu span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--gold);
}

/* ============================================
   GOLD CORNER BRACKETS (utility)
   ============================================ */
.has-brackets {
  position: relative;
}
.has-brackets::before,
.has-brackets::after,
.has-brackets > .br-tr,
.has-brackets > .br-bl {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border-color: var(--gold);
  border-style: solid;
  border-width: 0;
}
.has-brackets::before { top: 0; left: 0; border-top-width: 1px; border-left-width: 1px; }
.has-brackets::after  { bottom: 0; right: 0; border-bottom-width: 1px; border-right-width: 1px; }
.has-brackets > .br-tr { top: 0; right: 0; border-top-width: 1px; border-right-width: 1px; }
.has-brackets > .br-bl { bottom: 0; left: 0; border-bottom-width: 1px; border-left-width: 1px; }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 140px var(--gutter) 80px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(0,0,0,0.92) 0%, rgba(0,0,0,0.78) 25%, rgba(0,0,0,0.45) 50%, transparent 70%),
    linear-gradient(0deg, rgba(0,0,0,0.55) 0%, transparent 40%);
}
.hero-frame {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
}
.hero-content {
  position: relative;
  max-width: 540px;
  padding: 48px 44px 52px;
}
.hero-content::before,
.hero-content::after {
  content: "";
  position: absolute;
  width: 28px;
  height: 28px;
  border: 1px solid var(--gold);
}
.hero-content::before { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.hero-content::after { bottom: 0; right: 0; border-left: 0; border-top: 0; }

.hero-eyebrow {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.36em;
  color: var(--gold);
  margin-bottom: 28px;
}
.hero-title {
  font-family: var(--f-display);
  font-size: clamp(56px, 7vw, 96px);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin-bottom: 32px;
}
.hero-title em {
  font-style: italic;
  font-weight: 400;
  color: var(--gold);
  background: linear-gradient(180deg, var(--gold-light) 0%, var(--gold) 60%, var(--gold-dim) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-body {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 380px;
  margin-bottom: 40px;
}

/* ============================================
   GOLD BUTTON
   ============================================ */
.btn-gold {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding: 18px 36px;
  border: 1px solid var(--gold);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.24em;
  color: var(--gold);
  background: transparent;
  position: relative;
  overflow: hidden;
  transition: color 0.35s ease, background 0.35s ease;
}
.btn-gold svg {
  width: 18px;
  height: 18px;
  transition: transform 0.35s ease;
}
.btn-gold::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gold);
  transform: translateX(-101%);
  transition: transform 0.4s cubic-bezier(0.65, 0, 0.35, 1);
  z-index: 0;
}
.btn-gold span, .btn-gold svg { position: relative; z-index: 1; }
.btn-gold:hover { color: var(--black); }
.btn-gold:hover::before { transform: translateX(0); }
.btn-gold:hover svg { transform: translateX(6px); }
.btn-gold--sm { padding: 14px 28px; font-size: 10px; gap: 14px; }
.btn-gold--sm svg { width: 14px; height: 14px; }

/* ============================================
   SECTION DEFAULTS
   ============================================ */
section { padding: 120px var(--gutter); }

.section-head {
  text-align: center;
  max-width: 880px;
  margin: 0 auto 80px;
}
.eyebrow {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.36em;
  color: var(--gold);
  margin-bottom: 22px;
}
.section-title {
  font-family: var(--f-display);
  font-size: clamp(28px, 3.4vw, 44px);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.section-title em {
  font-style: italic;
  color: var(--gold);
}

/* ============================================
   BUILT DIFFERENT
   ============================================ */
.built-different {
  background: var(--black);
  border-top: 1px solid var(--border);
}
.feature-grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 32px;
}
.feature {
  text-align: center;
  padding: 0 8px;
}
.feature-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 22px;
  border: 1px solid var(--border-strong);
  background:
    radial-gradient(circle at 50% 50%, rgba(212, 175, 55, 0.12), transparent 70%);
  position: relative;
}
.feature-icon::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid var(--gold);
  opacity: 0.55;
}
.feature h3 {
  font-family: var(--f-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--gold);
  margin-bottom: 14px;
  line-height: 1.5;
}
.feature p {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 180px;
  margin: 0 auto;
}

/* ============================================
   SHE REMEMBERS
   ============================================ */
.she-remembers {
  padding: 60px var(--gutter) 120px;
}
.sr-frame {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, #050505 0%, #0a0807 100%);
}
.sr-frame::before,
.sr-frame::after,
.sr-frame > .br-tr,
.sr-frame > .br-bl {
  content: "";
  position: absolute;
  width: 26px;
  height: 26px;
  border-color: var(--gold);
  border-style: solid;
  border-width: 0;
  pointer-events: none;
}
.sr-frame::before { top: -1px; left: -1px; border-top-width: 1px; border-left-width: 1px; }
.sr-frame::after  { bottom: -1px; right: -1px; border-bottom-width: 1px; border-right-width: 1px; }
.sr-frame > .br-tr { top: -1px; right: -1px; border-top-width: 1px; border-right-width: 1px; }
.sr-frame > .br-bl { bottom: -1px; left: -1px; border-bottom-width: 1px; border-left-width: 1px; }

.sr-grid {
  display: grid;
  grid-template-columns: 1.1fr 1.2fr 1fr;
  align-items: center;
  min-height: 360px;
  gap: 0;
  position: relative;
}
.sr-image {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: calc((1.1 / 3.3) * 100% + (1.2 / 3.3) * 100%);
  overflow: hidden;
  z-index: 0;
}
.sr-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 30% center;
}
.sr-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, transparent 35%, rgba(0,0,0,0.55) 75%, rgba(0,0,0,0.85) 100%);
}
.sr-copy {
  position: relative;
  z-index: 1;
  grid-column: 2;
  padding: 56px 48px;
}
.sr-card {
  position: relative;
  z-index: 1;
  grid-column: 3;
  margin: 32px;
  padding: 24px 22px;
  border: 1px solid var(--border-strong);
  background: #060606;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.sr-status {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.34em;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
}
.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--gold);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.sr-title {
  font-family: var(--f-display);
  font-size: clamp(40px, 4.6vw, 60px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin-bottom: 24px;
}
.sr-title em {
  font-style: italic;
  background: linear-gradient(180deg, var(--gold-light) 0%, var(--gold) 60%, var(--gold-dim) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.sr-body {
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin-bottom: 36px;
}

/* Chat preview card */
.sr-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.sr-card-name {
  font-family: var(--f-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--ink);
}
.sr-card-status {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.28em;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 6px;
}
.sr-card-wave {
  color: var(--gold);
  opacity: 0.85;
  height: 28px;
}
.sr-card-wave svg {
  width: 100%;
  height: 100%;
}
.sr-card-msg p {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ink);
}
.sr-card-msg p + p { color: var(--ink-soft); margin-top: 4px; }
.sr-card-typing {
  display: flex;
  gap: 5px;
  padding-top: 2px;
}
.sr-card-typing span {
  width: 5px;
  height: 5px;
  background: var(--gold-dim);
  border-radius: 50%;
  animation: typing 1.4s ease-in-out infinite;
}
.sr-card-typing span:nth-child(2) { animation-delay: 0.2s; }
.sr-card-typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}

/* ============================================
   PHILOSOPHY
   ============================================ */
.philosophy {
  border-top: 1px solid var(--border);
}
.phil-grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1.6fr;
  gap: 56px;
  align-items: center;
}
.phil-intro .eyebrow { text-align: left; margin-bottom: 18px; }
.phil-title {
  font-family: var(--f-display);
  font-size: clamp(26px, 2.6vw, 36px);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin-bottom: 24px;
}
.phil-body {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 420px;
}
.phil-mark {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}
.phil-mark::before {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
}
.phil-mark::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  border: 1px solid var(--border);
  border-radius: 50%;
}
.phil-mark img {
  width: 140px;
  height: auto;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 0 30px rgba(212, 175, 55, 0.35));
}
.phil-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.pillar h4 {
  font-family: var(--f-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--gold);
  margin-bottom: 14px;
}
.pillar p {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ============================================
   NAV CARDS
   ============================================ */
.nav-cards {
  padding: 80px var(--gutter) 120px;
}
.cards-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.nav-card {
  position: relative;
  padding: 28px 24px 64px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, #0a0a0a 0%, #050505 100%);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color 0.3s ease, transform 0.3s ease, background 0.3s ease;
  min-height: 180px;
}
.nav-card:hover {
  border-color: var(--gold);
  transform: translateY(-3px);
  background: linear-gradient(180deg, #0f0d08 0%, #070605 100%);
}
.nav-card-icon {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-strong);
  background: radial-gradient(circle at 50% 50%, rgba(212, 175, 55, 0.12), transparent 70%);
  position: relative;
}
.nav-card-icon::after {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid var(--gold);
  opacity: 0.55;
}
.nav-card-body h4 {
  font-family: var(--f-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--gold);
  margin-bottom: 8px;
}
.nav-card-body p {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-soft);
}
.nav-card-arrow {
  position: absolute;
  bottom: 24px;
  left: 24px;
  width: 22px;
  height: 22px;
  color: var(--gold);
  transition: transform 0.3s ease;
}
.nav-card:hover .nav-card-arrow {
  transform: translateX(6px);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 36px var(--gutter);
  background: var(--black);
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
}
.footer-copy {
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
}
.footer-tagline {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.32em;
  color: var(--gold);
  text-align: center;
}
.footer-social {
  display: flex;
  justify-content: flex-end;
  gap: 22px;
  list-style: none;
}
.footer-social a {
  display: block;
  color: var(--ink-mute);
  transition: color 0.3s ease, transform 0.3s ease;
}
.footer-social a:hover { color: var(--gold); transform: translateY(-2px); }
.footer-social svg { width: 16px; height: 16px; }

/* ============================================
   VAULT ENTRY
   ============================================ */
.vault-entry {
  padding: 80px var(--gutter) 120px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 56px;
}
.vault-entry > .eyebrow {
  letter-spacing: 0.4em;
}
.vault-stage {
  display: flex;
  justify-content: center;
}
.vault-door-wrap {
  position: relative;
  padding: 40px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  outline: none;
}
/* TL + BR brackets — mirrors hero-content pattern */
.vault-door-wrap::before,
.vault-door-wrap::after {
  content: "";
  position: absolute;
  width: 28px;
  height: 28px;
  border: 1px solid var(--gold);
  pointer-events: none;
  transition: width 0.3s ease, height 0.3s ease;
}
.vault-door-wrap::before { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.vault-door-wrap::after  { bottom: 0; right: 0; border-left: 0; border-top: 0; }
.vault-door-wrap:hover::before,
.vault-door-wrap:hover::after,
.vault-door-wrap:focus-visible::before,
.vault-door-wrap:focus-visible::after {
  width: 38px;
  height: 38px;
}

/* Perspective container — parent of the rotating panel */
.vault-door-scene {
  position: relative;
  width: 260px;
  height: 360px;
  perspective: 1200px;
}

/* Interior revealed behind the door */
.vault-interior {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 50% 45%, rgba(186, 117, 23, 0.11) 0%, #000 65%);
  border: 1px solid var(--border);
  opacity: 0;
  transition: opacity 0.8s ease;
}
.vault-interior--visible { opacity: 1; }
.vault-interior-copy { text-align: center; padding: 24px; }
.vault-interior-title {
  font-family: var(--f-display);
  font-size: 24px;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 12px;
  line-height: 1.2;
}
.vault-interior-title em {
  font-style: italic;
  background: linear-gradient(180deg, var(--gold-light) 0%, var(--gold) 60%, var(--gold-dim) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.vault-interior-sub {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.32em;
  color: var(--gold-dim);
  text-transform: uppercase;
}

/* Door panel — rotates on left-edge hinge */
.vault-door-panel {
  position: absolute;
  inset: 0;
  z-index: 1;
  transform-origin: left center;
  transition: transform 1.2s cubic-bezier(0.42, 0, 0.18, 1);
  will-change: transform;
}
.vault-door-panel.vault-door--open {
  transform: rotateY(-72deg);
}

/* Door face — border + overflow only; visual lives in inline SVG */
.vault-door-face {
  position: relative;
  width: 100%;
  height: 100%;
  border: 1px solid var(--border-strong);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}
.vault-door-face svg {
  display: block;
  width: 100%;
  height: 100%;
}
.vault-door-wrap:hover .vault-door-face {
  border-color: rgba(212, 175, 55, 0.5);
  box-shadow: 0 0 40px rgba(212, 175, 55, 0.05);
}

/* Wheel group — CSS sets initial 15° tilt; animation adds 720° on top */
#vaultWheel {
  transform-box: fill-box;
  transform-origin: center;
  transform: rotate(15deg);
}
/* Keyframes: start from the resting tilt so no snap on trigger */
@keyframes vault-spin {
  from { transform: rotate(15deg); }
  to   { transform: rotate(735deg); }
}
.vault-spinning {
  animation: vault-spin 0.9s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Below-door italic serif caption */
.vault-caption {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--gold-dim);
  text-align: center;
  pointer-events: none;
  user-select: none;
}

/* "CLICK TO ENTER" hint */
.vault-entry-hint {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.38em;
  color: var(--ink-mute);
  text-align: center;
  transition: opacity 0.4s ease, color 0.3s ease;
  user-select: none;
  pointer-events: none;
}
.vault-entry-hint.vault-hint--hidden { opacity: 0; }
.vault-door-wrap:hover .vault-entry-hint { color: var(--gold-dim); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1180px) {
  .feature-grid { grid-template-columns: repeat(3, 1fr); gap: 48px 24px; }
  .cards-grid { grid-template-columns: repeat(3, 1fr); }
  .phil-grid { grid-template-columns: 1fr; text-align: center; gap: 48px; }
  .phil-intro .eyebrow, .phil-title, .phil-body { text-align: center; }
  .phil-body { margin-left: auto; margin-right: auto; }
  .sr-grid { grid-template-columns: 1fr; }
  .sr-image { height: 280px; }
  .sr-image::after {
    background: linear-gradient(180deg, transparent 50%, var(--black) 100%);
  }
}

@media (max-width: 820px) {
  .nav { padding: 20px var(--gutter); }
  .nav-inner { position: relative; }
  .nav-links {
    position: absolute;
    top: calc(100% + 18px);
    right: 0;
    left: 0;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: 18px 24px;
    background: rgba(8, 8, 8, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
    z-index: 60;
  }
  .nav-links.nav-links--open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-links li {
    border-bottom: 1px solid var(--border);
  }
  .nav-links li:last-child { border-bottom: 0; }
  .nav-links a {
    display: block;
    padding: 16px 4px;
    font-size: 13px;
    letter-spacing: 0.24em;
  }
  .nav-links a::after { display: none; }
  .nav-menu { display: flex; position: relative; z-index: 61; }
  .nav-menu span {
    transition: transform 0.3s ease, opacity 0.2s ease;
    transform-origin: center;
  }
  .nav-menu--open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  .nav-menu--open span:nth-child(2) {
    opacity: 0;
  }
  .nav-menu--open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .brand-tag { display: none; }
  .brand-mark { height: 32px; }
  .brand-name { font-size: 15px; }

  .hero { padding-top: 120px; padding-bottom: 60px; min-height: 90vh; }
  .hero-content { padding: 36px 28px; }
  .hero-bg::after {
    background: linear-gradient(180deg, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.85) 100%);
  }

  section { padding: 80px var(--gutter); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 44px 18px; }
  .cards-grid { grid-template-columns: 1fr; }
  .phil-pillars { grid-template-columns: 1fr; gap: 28px; }

  .sr-copy { padding: 40px 28px; }
  .sr-card { margin: 0 28px 32px; }

  .vault-entry { gap: 40px; padding: 60px var(--gutter) 100px; }
  .vault-door-scene { width: 220px; height: 306px; }
  .vault-interior-title { font-size: 20px; }

  .footer-inner { grid-template-columns: 1fr; text-align: center; gap: 18px; }
  .footer-social { justify-content: center; }
}

@media (max-width: 480px) {
  .feature-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-title { font-size: 48px; }
  .sr-title { font-size: 40px; }
  .vault-door-scene { width: 200px; height: 278px; }
  .vault-door-wrap { padding: 28px; }
}