/* ─────────────────────────────────────────────
   SHARED STYLES — Reset, tokens, cursor, nav,
   next-cs CTA, footer, animations, responsive
───────────────────────────────────────────── */

/* ─── RESET + ROOT VARIABLES ─── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:         #0C0B09;
  --surface:    #131210;
  --surface-2:  #0F0E0B;
  --border:     #242220;
  --muted:      #3A3835;
  --text-dim:   #7A7672;
  --text:       #EDE8DF;
  --warm:       #F0E6D0;
  --gold:       #C8A96E;
  --gold-dim:   #8A7248;
  --accent:     #E2C88A;

  --ff-display: 'Cormorant', Georgia, serif;
  --ff-ui:      'Syne', sans-serif;
  --ff-mono:    'JetBrains Mono', monospace;

  --ease-out:   cubic-bezier(0.23, 1, 0.32, 1);

  --sp-4:  4px;
  --sp-8:  8px;
  --sp-12: 12px;
  --sp-16: 16px;
  --sp-20: 20px;
  --sp-24: 24px;
  --sp-32: 32px;
  --sp-40: 40px;
  --sp-48: 48px;
  --sp-56: 56px;
  --sp-64: 64px;
  --sp-80: 80px;
  --sp-96: 96px;
  --sp-120: 120px;

  --nav-h: 84px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--ff-ui);
  font-size: 15px;
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@media (pointer: coarse) {
  body { cursor: auto; }
  .cursor, .cursor-ring { display: none; }
}

/* ─── NOISE OVERLAY ─── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  background-size: 256px;
  opacity: 0.35;
  pointer-events: none;
  z-index: 1000;
}

/* ─── CUSTOM CURSOR ─── */
.cursor {
  position: fixed; width: 8px; height: 8px; background: var(--gold); border-radius: 50%;
  pointer-events: none; z-index: 9999; transform: translate(-50%, -50%);
  transition: transform 0.1s var(--ease-out), opacity 0.2s; will-change: left, top;
}
.cursor-ring {
  position: fixed; width: 32px; height: 32px; border: 1px solid var(--gold-dim); border-radius: 50%;
  pointer-events: none; z-index: 9998; transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease-out), height 0.3s var(--ease-out), border-color 0.3s, opacity 0.2s;
  will-change: left, top;
}
.cursor-ring.hovered { width: 52px; height: 52px; border-color: var(--gold); }
.cursor.clicking { transform: translate(-50%, -50%) scale(0.7); }

/* ─── NAV ─── */
body > nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 28px var(--sp-56);
  background: linear-gradient(to bottom, var(--bg) 0%, transparent 100%);
  height: var(--nav-h);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  transition: background 0.4s, border-color 0.4s, transform 0.4s cubic-bezier(0.23,1,0.32,1);
  border-bottom: 1px solid transparent;
}
.nav-logo {
  font-family: var(--ff-display); font-size: 20px; font-weight: 400; color: var(--warm);
  text-decoration: none; letter-spacing: 0.02em; cursor: none; transition: color 0.2s;
}
.nav-logo:hover { color: var(--gold); }
.nav-logo:focus-visible { outline: 1px solid var(--gold); outline-offset: 4px; }
.nav-back {
  font-family: var(--ff-mono); font-size: 11px; font-weight: 300; color: var(--text-dim);
  text-decoration: none; letter-spacing: 0.12em; text-transform: uppercase; cursor: none; transition: color 0.2s;
}
.nav-back:hover { color: var(--gold); }

/* ─── SECTION LABEL ─── */
.section-label {
  font-family: var(--ff-mono); font-size: 10px; font-weight: 300; color: var(--gold);
  letter-spacing: 0.18em; text-transform: uppercase;
  display: flex; align-items: center; gap: 14px; margin-bottom: var(--sp-56);
}
.section-label::after {
  content: ''; display: block; flex: 1; max-width: 60px; height: 1px; background: var(--gold-dim);
}

/* ─── NEXT CASE STUDY CTA ─── */
.next-cs {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--sp-80) var(--sp-56); border-top: 1px solid var(--border);
  text-decoration: none; color: inherit; cursor: none;
  transition: background 0.3s var(--ease-out);
  position: relative; overflow: hidden;
}
.next-cs::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(200,169,110,0.04) 0%, transparent 60%);
  opacity: 0; transition: opacity 0.4s; pointer-events: none;
}
.next-cs:hover::before { opacity: 1; }
.next-cs-label {
  font-family: var(--ff-mono); font-size: 10px; color: var(--text-dim);
  letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: var(--sp-8);
}
.next-cs-title {
  font-family: var(--ff-display); font-size: clamp(28px, 3vw, 44px); font-weight: 300;
  color: var(--warm); line-height: 1.1; transition: color 0.2s;
}
.next-cs:hover .next-cs-title { color: var(--gold); }
.next-cs-title em { font-style: italic; color: var(--gold); }
.next-cs-arrow {
  font-family: var(--ff-display); font-size: 64px; font-weight: 200; color: var(--gold);
  line-height: 1; transition: transform 0.3s var(--ease-out); flex-shrink: 0;
}
.next-cs:hover .next-cs-arrow { transform: translateX(8px); }

/* ─── FOOTER ─── */
footer {
  padding: var(--sp-40) var(--sp-56); display: flex; justify-content: space-between;
  align-items: center; border-top: 1px solid var(--border); flex-wrap: wrap; gap: var(--sp-16);
  position: relative; overflow: hidden;
}
footer span {
  font-family: var(--ff-mono); font-size: 11px; color: var(--muted); letter-spacing: 0.08em;
}
.footer-links { display: flex; gap: 28px; }
.footer-links a {
  font-family: var(--ff-mono); font-size: 11px; color: var(--muted); text-decoration: none;
  letter-spacing: 0.08em; transition: color 0.2s; cursor: none;
}
.footer-links a:hover { color: var(--gold); }
.footer-links a:focus-visible { outline: 1px solid var(--gold); outline-offset: 4px; color: var(--gold); }

/* ─── FOOTER DINO ─── */
.footer-dino {
  position: absolute; bottom: 8px; image-rendering: pixelated;
  width: 24px; height: 26px; animation: dino-walk-across 18s linear infinite; pointer-events: none;
}
.footer-dino-sprite { width: 24px; height: 26px; image-rendering: pixelated; }
@keyframes dino-walk-across { 0% { left: -30px; } 100% { left: calc(100% + 30px); } }

/* ─── ANIMATIONS ─── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Scroll reveal */
.reveal {
  opacity: 0; transform: translateY(32px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.4s; }

/* Staggered reveal for grid children */
.reveal-stagger > * {
  opacity: 0; transform: translateY(32px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal-stagger.visible > * { opacity: 1; transform: translateY(0); }
.reveal-stagger > *:nth-child(1) { transition-delay: 0s; }
.reveal-stagger > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger > *:nth-child(3) { transition-delay: 0.15s; }
.reveal-stagger > *:nth-child(4) { transition-delay: 0.2s; }

/* Section label slide-in */
.section-label {
  opacity: 0; transform: translateX(-20px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.section-label.visible { opacity: 1; transform: translateX(0); }

/* ─── REDUCED MOTION ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .reveal-stagger > * { opacity: 1; transform: none; }
  .section-label { opacity: 1; transform: none; }
}

/* ─── RESPONSIVE — 1024 ─── */
@media (max-width: 1024px) {
  :root { --sp-120: 96px; --sp-80: 64px; --sp-56: 40px; --sp-48: 36px; --sp-40: 32px; }
}

/* ─── RESPONSIVE — 768 ─── */
@media (max-width: 768px) {
  :root { --sp-120: 80px; --sp-80: 56px; --sp-56: 24px; --sp-48: 28px; --sp-40: 24px; --nav-h: 72px; }
  body { cursor: auto; }
  .cursor, .cursor-ring { display: none; }
  nav { padding: 20px var(--sp-56); }
  .next-cs { flex-direction: column; align-items: flex-start; gap: var(--sp-24); }
  footer { flex-direction: column; align-items: flex-start; }
}

/* ─── RESPONSIVE — 480 ─── */
@media (max-width: 480px) {
  :root { --sp-56: 20px; }
}