/* ============================================
   PixelCarbon — v2
   White base, brutalist-confident, AI-cinematic hook
   ============================================ */

/* ---------- Self-hosted: Elephant Medium (the brand face) ---------- */
@font-face {
  font-family: 'Elephant';
  src: url('../assets/fonts/Elephant-Medium.woff2') format('woff2'),
       url('../assets/fonts/Elephant-Medium.woff') format('woff');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* ---------- Google: Inter + JetBrains Mono ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* The palette — paper, ink, signal */
  --paper: #fafaf7;
  --paper-2: #f1efe8;
  --paper-3: #e6e3d8;
  --ink: #0b0b0a;
  --ink-2: #1a1a18;
  --ink-mute: #5a5854;
  --rule: rgba(11, 11, 10, 0.12);
  --rule-strong: rgba(11, 11, 10, 0.35);

  /* The accent — pulled from your buckyball */
  --signal: #2a7a74;
  --signal-soft: #d4e8e6;

  /* Typography stack */
  --font-brand: 'Elephant', 'Arial Black', 'Helvetica Neue', sans-serif;
  --font-display: 'Elephant', 'Arial Black', 'Helvetica Neue', sans-serif;
  --font-body: 'Inter', -apple-system, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Spacing */
  --max-w: 1480px;
  --pad-x: clamp(20px, 5vw, 80px);
}

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

html { scroll-behavior: smooth; background: var(--paper); }

body {
  position: relative;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.5;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

::selection { background: var(--ink); color: var(--paper); }

/* ============================================
   WORDMARK — top-left, scrolls with page
   ============================================ */
.logo-fixed {
  position: absolute;
  top: 24px;
  left: var(--pad-x);
  z-index: 1000;
  pointer-events: none;
  display: flex;
  align-items: center;
}

.logo-fixed__img {
  width: clamp(100px, 11vw, 160px);
  height: auto;
  display: block;
  transition: filter 0.4s;
}

/* Over dark hero, invert so wordmark reads white on photo */
.logo-fixed.on-dark .logo-fixed__img {
  filter: invert(1) brightness(1.4);
}

/* ============================================
   FIXED NAV — minimal, right side
   ============================================ */
.nav {
  position: fixed;
  top: 28px;
  right: var(--pad-x);
  z-index: 1000;
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav__link {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  position: relative;
  padding: 4px 0;
  transition: color 0.3s;
}

.nav.on-dark .nav__link { color: var(--paper); }

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s cubic-bezier(0.65, 0, 0.35, 1);
}

.nav__link:hover::after,
.nav__link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav__cta {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper);
  background: var(--ink);
  padding: 12px 20px;
  transition: background 0.3s, color 0.3s;
}

.nav.on-dark .nav__cta {
  background: var(--paper);
  color: var(--ink);
}

.nav__cta:hover {
  background: var(--signal);
  color: var(--paper);
}

.nav.on-dark .nav__cta:hover {
  background: var(--signal);
  color: var(--paper);
}

@media (max-width: 768px) {
  .nav { gap: 16px; }
  .nav__link:not(.nav__cta) { display: none; }
  .nav__cta { padding: 10px 14px; font-size: 10px; }
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.eyebrow::before {
  content: '';
  width: 32px;
  height: 1px;
  background: currentColor;
}

.eyebrow--light { color: var(--paper); }

.display {
  font-family: var(--font-brand);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 0.95;
  text-transform: uppercase;
}

/* Accent moments inside display headings — same font, teal colour */
.display em {
  font-style: normal;
  color: var(--signal);
  letter-spacing: 0;
}

h1.display { font-size: clamp(56px, 10vw, 180px); }
h2.display { font-size: clamp(40px, 7vw, 110px); }
h3.display { font-size: clamp(28px, 4vw, 56px); }

.body-l {
  font-size: clamp(17px, 1.4vw, 22px);
  line-height: 1.5;
  font-weight: 400;
}

.mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

/* ============================================
   BUTTONS — brutalist, hard edges
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 18px 28px;
  border: 1px solid currentColor;
  transition: all 0.3s cubic-bezier(0.65, 0, 0.35, 1);
  cursor: pointer;
}

.btn--solid {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.btn--solid:hover {
  background: var(--signal);
  border-color: var(--signal);
}

.btn--outline {
  color: var(--ink);
  background: transparent;
}

.btn--outline:hover {
  background: var(--ink);
  color: var(--paper);
}

.btn--outline-light {
  color: var(--paper);
  background: transparent;
  border-color: var(--paper);
}

.btn--outline-light:hover {
  background: var(--paper);
  color: var(--ink);
}

.btn__arrow {
  display: inline-block;
  transition: transform 0.3s cubic-bezier(0.65, 0, 0.35, 1);
}

.btn:hover .btn__arrow { transform: translateX(6px); }

/* ============================================
   FOOTER — brutalist tag
   ============================================ */
.footer {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(60px, 8vw, 100px) var(--pad-x) 32px;
}

.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.footer__mark {
  font-family: var(--font-brand);
  font-size: clamp(72px, 16vw, 260px);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 0.85;
  margin-bottom: 60px;
  border-bottom: 1px solid rgba(250, 250, 247, 0.2);
  padding-bottom: 40px;
  text-transform: uppercase;
}

.footer__mark em { font-style: normal; color: var(--signal); }

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

@media (max-width: 768px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 30px; }
}

.footer__col h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(250, 250, 247, 0.5);
  margin-bottom: 16px;
}

.footer__col ul { list-style: none; }
.footer__col li { padding: 4px 0; }
.footer__col a {
  font-size: 14px;
  color: rgba(250, 250, 247, 0.8);
  transition: color 0.2s;
}
.footer__col a:hover { color: var(--signal); }

.footer__col p {
  font-size: 14px;
  color: rgba(250, 250, 247, 0.7);
  max-width: 36ch;
  line-height: 1.55;
}

.footer__bottom {
  border-top: 1px solid rgba(250, 250, 247, 0.2);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(250, 250, 247, 0.45);
}

@media (max-width: 600px) {
  .footer__bottom { flex-direction: column; gap: 8px; }
}

/* ============================================
   SCROLL REVEAL
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1.1s cubic-bezier(0.16, 1, 0.3, 1),
              transform 1.1s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-stagger.in > * {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger.in > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.in > *:nth-child(2) { transition-delay: 0.15s; }
.reveal-stagger.in > *:nth-child(3) { transition-delay: 0.25s; }
.reveal-stagger.in > *:nth-child(4) { transition-delay: 0.35s; }
.reveal-stagger.in > *:nth-child(5) { transition-delay: 0.45s; }
.reveal-stagger.in > *:nth-child(6) { transition-delay: 0.55s; }