/* style.css — Exodus HQ Demo Gallery: design tokens + components */

/* ============ TOKENS ============ */
:root,
[data-theme='dark'] {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.75rem);
  --text-hero: clamp(2.75rem, 0.6rem + 6.5vw, 6.75rem);

  /* Spacing (4px base) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.3rem;
  --radius-md: 0.55rem;
  --radius-lg: 0.9rem;
  --radius-xl: 1.4rem;
  --radius-full: 9999px;

  /* Motion */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

  /* Content widths */
  --content-default: 1180px;
  --content-wide: 1400px;
  --content-narrow: 680px;

  /* Fonts */
  --font-display: 'Boska', 'Iowan Old Style', Georgia, serif;
  --font-body: 'Satoshi', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

/* DARK (default) — elegant, dark, warm */
[data-theme='dark'] {
  --color-bg: #120f0b;
  --color-surface: #19140e;
  --color-surface-2: #201a12;
  --color-surface-offset: #241d14;
  --color-surface-dynamic: #2b2216;
  --color-divider: #2a2216;
  --color-border: #3c3020;

  --color-text: #f4ecdd;
  --color-text-muted: #b5a48c;
  --color-text-faint: #7d6f5b;
  --color-text-inverse: #16110c;

  --color-primary: #d9a544;
  --color-primary-hover: #ecc067;
  --color-primary-active: #b98a34;
  --color-primary-highlight: #40331d;

  --color-accent: #c1663a;
  --color-accent-hover: #d47c4f;
  --color-accent-highlight: #402920;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.35);
  --shadow-md: 0 8px 24px oklch(0 0 0 / 0.4);
  --shadow-lg: 0 24px 64px oklch(0 0 0 / 0.5);

  --glow-primary: 0 0 60px oklch(0.78 0.13 80 / 0.18);
}

/* LIGHT */
[data-theme='light'] {
  --color-bg: #f7f1e6;
  --color-surface: #fbf7ee;
  --color-surface-2: #f2e9d7;
  --color-surface-offset: #ede2cc;
  --color-surface-dynamic: #e6d8bd;
  --color-divider: #e0d3b6;
  --color-border: #d8c7a2;

  --color-text: #241c13;
  --color-text-muted: #6f6250;
  --color-text-faint: #a3947a;
  --color-text-inverse: #f7f1e6;

  --color-primary: #a8762a;
  --color-primary-hover: #8f6221;
  --color-primary-active: #744e1a;
  --color-primary-highlight: #eddcb8;

  --color-accent: #a1502c;
  --color-accent-hover: #863f21;
  --color-accent-highlight: #ecd6c6;

  --shadow-sm: 0 1px 2px oklch(0.3 0.03 70 / 0.1);
  --shadow-md: 0 8px 24px oklch(0.3 0.03 70 / 0.14);
  --shadow-lg: 0 24px 64px oklch(0.3 0.03 70 / 0.18);

  --glow-primary: 0 0 60px oklch(0.65 0.1 70 / 0.12);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #120f0b;
    --color-surface: #19140e;
    --color-surface-2: #201a12;
    --color-surface-offset: #241d14;
    --color-divider: #2a2216;
    --color-border: #3c3020;
    --color-text: #f4ecdd;
    --color-text-muted: #b5a48c;
    --color-text-faint: #7d6f5b;
    --color-primary: #d9a544;
    --color-primary-hover: #ecc067;
    --color-accent: #c1663a;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.35);
    --shadow-md: 0 8px 24px oklch(0 0 0 / 0.4);
    --shadow-lg: 0 24px 64px oklch(0 0 0 / 0.5);
    --glow-primary: 0 0 60px oklch(0.78 0.13 80 / 0.18);
  }
}

/* ============ VIEW TRANSITIONS (smooth cross-page nav) ============ */
@view-transition {
  navigation: auto;
}
::view-transition-old(root) {
  animation: exodus-fade-out 0.35s var(--ease-in);
}
::view-transition-new(root) {
  animation: exodus-fade-in 0.5s var(--ease-out);
}
@keyframes exodus-fade-out {
  to {
    opacity: 0;
    filter: blur(6px);
  }
}
@keyframes exodus-fade-in {
  from {
    opacity: 0;
    filter: blur(6px);
    transform: scale(1.01);
  }
}

/* ============ LAYOUT PRIMITIVES ============ */
.wrap {
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-6);
}
.wrap--wide {
  max-width: var(--content-wide);
}
section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-32));
  position: relative;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.eyebrow::before {
  content: '';
  width: 18px;
  height: 1px;
  background: var(--color-primary);
}

/* ============ HEADER ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 78%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition:
    transform 0.3s var(--ease-in-out),
    box-shadow 0.3s var(--ease-in-out);
}
.site-header--hidden {
  transform: translateY(-100%);
}
.site-header--scrolled {
  box-shadow: var(--shadow-sm);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}
.brand svg {
  width: 30px;
  height: 30px;
  color: var(--color-primary);
  flex-shrink: 0;
}
.brand-word {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  letter-spacing: 0.01em;
}
.brand-word b {
  color: var(--color-primary);
  font-weight: 600;
}
.brand-tag {
  display: none;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.main-nav ul {
  display: flex;
  gap: var(--space-6);
}
.main-nav a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  position: relative;
  padding-block: var(--space-1);
}
.main-nav a:hover,
.main-nav a[aria-current='page'] {
  color: var(--color-text);
}
.main-nav a[aria-current='page']::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 1px;
  background: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.theme-toggle {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}
.theme-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.theme-toggle svg {
  width: 17px;
  height: 17px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  align-items: center;
  justify-content: center;
}
.nav-toggle svg {
  width: 18px;
  height: 18px;
  color: var(--color-text);
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  transition:
    background var(--transition-interactive),
    color var(--transition-interactive),
    border-color var(--transition-interactive),
    transform var(--transition-interactive),
    box-shadow var(--transition-interactive);
}
.btn:active {
  transform: translateY(1px);
}
.btn-primary {
  background: var(--color-primary);
  color: #1a1409;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--glow-primary);
  transform: translateY(-1px);
}
.btn-ghost {
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}
.btn svg {
  width: 15px;
  height: 15px;
  transition: transform var(--transition-interactive);
}
.btn:hover svg {
  transform: translateX(3px);
}

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-block: var(--space-24);
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: hero-kenburns 22s ease-in-out infinite alternate;
}
@keyframes hero-kenburns {
  from {
    transform: scale(1.04) translate3d(0, 0, 0);
  }
  to {
    transform: scale(1.14) translate3d(-1%, -1%, 0);
  }
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--color-bg) 55%, transparent) 0%, var(--color-bg) 96%),
    linear-gradient(90deg, var(--color-bg) 0%, color-mix(in oklab, var(--color-bg) 15%, transparent) 55%);
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 500;
  margin-block: var(--space-6) var(--space-6);
  color: var(--color-text);
}
.hero h1 em {
  font-style: italic;
  color: var(--color-primary);
}
.hero p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 56ch;
  margin-bottom: var(--space-10);
}
.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  align-items: center;
}
.hero-scroll {
  position: absolute;
  bottom: var(--space-10);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-faint);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.hero-scroll .line {
  width: 1px;
  height: 36px;
  background: linear-gradient(var(--color-primary), transparent);
  animation: scroll-pulse 2s var(--ease-in-out) infinite;
}
@keyframes scroll-pulse {
  0%,
  100% {
    opacity: 0.3;
  }
  50% {
    opacity: 1;
  }
}

/* ============ STAT STRIP ============ */
.stat-strip {
  padding-block: var(--space-12);
  border-block: 1px solid var(--color-divider);
}
.stat-strip .wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}
.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.stat b {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  color: var(--color-primary);
  font-weight: 500;
  letter-spacing: -0.01em;
}
.stat span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============ SECTION HEADS ============ */
.section-head {
  max-width: 640px;
  margin-bottom: var(--space-16);
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 500;
  margin-top: var(--space-4);
}
.section-head p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
}
.section-head--center {
  margin-inline: auto;
  text-align: center;
}
.section-head--center .eyebrow {
  justify-content: center;
}

/* ============ CATEGORY GALLERY ============ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
.category-card {
  position: relative;
  display: block;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-xl);
  overflow: hidden;
  text-decoration: none;
  color: var(--color-text-inverse);
  border: 1px solid var(--color-divider);
  view-transition-name: none;
  opacity: 1;
  transform: none;
  transition:
    border-color var(--transition-interactive),
    box-shadow 0.4s var(--ease-out);
}
.category-card:nth-child(3n + 2) {
  aspect-ratio: 4 / 5;
}
.category-card.reveal {
  opacity: 0;
  clip-path: inset(14% 0 0 0);
  animation: card-reveal 0.7s var(--ease-out) both;
  animation-timeline: view();
  animation-range: entry 0% entry 55%;
}
@keyframes card-reveal {
  to {
    opacity: 1;
    clip-path: inset(0 0 0 0);
  }
}
.category-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease-out), filter 0.7s var(--ease-out);
  filter: saturate(0.9) brightness(0.82);
}
.category-card:hover img {
  transform: scale(1.08);
  filter: saturate(1.05) brightness(0.7);
}
.category-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    color-mix(in oklab, var(--color-bg) 5%, transparent) 0%,
    color-mix(in oklab, var(--color-bg) 35%, transparent) 45%,
    color-mix(in oklab, var(--color-bg) 92%, transparent) 100%
  );
  transition: opacity var(--transition-interactive);
}
.category-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}
.category-card:hover::before {
  opacity: 0.85;
}
.card-index {
  position: absolute;
  top: var(--space-5);
  left: var(--space-5);
  z-index: 1;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: color-mix(in oklab, white 82%, transparent);
  background: color-mix(in oklab, black 35%, transparent);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  backdrop-filter: blur(6px);
}
.card-body {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: var(--space-6);
  transform: translateY(6px);
  transition: transform 0.45s var(--ease-out);
}
.category-card:hover .card-body {
  transform: translateY(-2px);
}
.card-body .card-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #ecc067;
  margin-bottom: var(--space-2);
  display: block;
}
.card-body h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: #f8f2e6;
  margin-bottom: var(--space-2);
}
.card-body p {
  font-size: var(--text-sm);
  color: #d9cdb9;
  margin-bottom: var(--space-4);
  max-width: 34ch;
}
.card-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: #f8f2e6;
}
.card-cta svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-interactive);
}
.category-card:hover .card-cta svg {
  transform: translateX(4px);
}
.card-cta::after {
  content: '';
  position: absolute;
  inset: 0;
}

/* ============ HOW IT WORKS ============ */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-10);
  counter-reset: step;
}
.step {
  position: relative;
  padding-top: var(--space-10);
  border-top: 1px solid var(--color-divider);
}
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
  display: block;
  margin-bottom: var(--space-4);
}
.step h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
  font-weight: 500;
}
.step p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.step-visual {
  margin-top: var(--space-6);
  height: 4px;
  border-radius: var(--radius-full);
  background: var(--color-surface-2);
  overflow: hidden;
}
.step-visual span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  animation: step-fill linear both;
  animation-timeline: view();
  animation-range: entry 20% entry 90%;
}
@keyframes step-fill {
  to {
    width: 100%;
  }
}

/* ============ CTA BAND ============ */
.cta-band {
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-surface-offset) 100%);
  border: 1px solid var(--color-border);
  padding: clamp(var(--space-10), 6vw, var(--space-20));
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, color-mix(in oklab, var(--color-primary) 18%, transparent), transparent 60%);
  pointer-events: none;
}
.cta-band h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 500;
  margin-bottom: var(--space-4);
  position: relative;
}
.cta-band p {
  color: var(--color-text-muted);
  max-width: 52ch;
  margin-inline: auto;
  margin-bottom: var(--space-8);
  position: relative;
}
.cta-band .hero-actions {
  justify-content: center;
  position: relative;
}

/* ============ FOOTER ============ */
.site-footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-16) var(--space-10);
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: var(--space-10);
  flex-wrap: wrap;
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--color-divider);
  margin-bottom: var(--space-8);
}
.footer-brand p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  max-width: 32ch;
  margin-top: var(--space-4);
}
.footer-links {
  display: flex;
  gap: var(--space-16);
  flex-wrap: wrap;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-4);
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer-col a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--text-sm);
}
.footer-col a:hover {
  color: var(--color-primary);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ============ SCROLL REVEALS (generic) ============ */
.reveal {
  opacity: 1;
}
@supports (animation-timeline: view()) {
  .reveal {
    opacity: 0;
    animation: fade-up linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 60%;
  }
}
@keyframes fade-up {
  from {
    opacity: 0;
    filter: blur(4px);
  }
  to {
    opacity: 1;
    filter: blur(0);
  }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 980px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-strip .wrap {
    grid-template-columns: repeat(2, 1fr);
    row-gap: var(--space-8);
  }
  .steps {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 760px) {
  .main-nav ul,
  .header-actions .btn {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  .category-card {
    aspect-ratio: 4 / 4.6;
  }
  .footer-top {
    flex-direction: column;
  }
  .hero h1 {
    font-size: clamp(2.4rem, 9vw, 3.6rem);
  }
}

/* Mobile nav drawer */
.mobile-nav {
  position: fixed;
  inset: 76px 0 0 0;
  background: var(--color-bg);
  background: color-mix(in oklab, var(--color-bg) 97%, transparent);
  backdrop-filter: blur(20px);
  z-index: 90;
  padding: var(--space-8) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.3s var(--ease-out),
    transform 0.3s var(--ease-out);
}
.mobile-nav.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.mobile-nav a {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text);
  text-decoration: none;
}
.mobile-nav .btn {
  align-self: flex-start;
  margin-top: var(--space-4);
}