/* ═══════════════════════════════════════════════
   Bendwater Labs — Design System
   ═══════════════════════════════════════════════ */

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

:root {
  --blue: #38BDF8;
  --blue-glow: rgba(56, 189, 248, 0.15);
  --gold: #C9A227;
  --gold-soft: #D4B84A;
  --surface: #080808;
  --surface-raised: #0C0C0C;
  --border: #161616;
  --border-subtle: #111;
  --border-hover: #282828;
  --text: #e8e8e8;
  --text-secondary: #888;
  --text-muted: #5A5854;
  --text-dim: #3A3836;
  --green-bg: rgba(34, 197, 94, 0.1);
  --green-border: rgba(34, 197, 94, 0.2);
  --green-text: #4ADE80;
  --bg: #030303;
}

html { scroll-behavior: smooth; }
@media (max-width: 768px) { html { scroll-behavior: auto; } }

body {
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── Loader ── */
.loader {
  position: fixed; inset: 0;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  z-index: 9999;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.4s;
}
@media (max-width: 768px) {
  .loader { transition-duration: 0.15s, 0.15s; }
}
.loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loader svg { animation: loaderPulse 1.8s ease-in-out infinite; }
@keyframes loaderPulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.04); }
}

/* ── Noise texture ── */
.noise {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: 0.025;
  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)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* ── Ambient orbs ── */
.ambient {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
}
.ambient-orb {
  position: absolute; border-radius: 50%; filter: blur(160px);
}
.orb-1 {
  width: 700px; height: 700px;
  background: radial-gradient(circle, var(--blue) 0%, transparent 70%);
  opacity: 0.04;
  top: -300px; right: -200px;
  animation: drift1 24s ease-in-out infinite;
}
.orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--gold) 0%, transparent 70%);
  opacity: 0.03;
  bottom: 10%; left: -150px;
  animation: drift2 30s ease-in-out infinite;
}
.orb-3 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.8) 0%, transparent 70%);
  opacity: 0.02;
  top: 60%; right: -100px;
  animation: drift3 20s ease-in-out infinite;
}
@keyframes drift1 { 0%, 100% { transform: translate(0, 0) scale(1); } 50% { transform: translate(-60px, 40px) scale(1.05); } }
@keyframes drift2 { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(50px, -60px); } }
@keyframes drift3 { 0%, 100% { transform: translate(0, 0) scale(1); } 50% { transform: translate(-30px, -40px) scale(0.95); } }

/* ── Layout ── */
.page { position: relative; z-index: 1; }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(24px, 5vw, 64px);
}

/* ── Nav ── */
.nav-wrap {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.4s, border-color 0.4s;
  border-bottom: 1px solid transparent;
}
.nav-wrap.scrolled,
.nav-wrap.solid {
  background: rgba(3, 3, 3, 0.8);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border-bottom-color: var(--border);
}

nav {
  max-width: 1120px; margin: 0 auto;
  padding: 24px clamp(24px, 5vw, 64px);
  display: flex; justify-content: space-between; align-items: center;
}

.wordmark {
  font-size: 15px; font-weight: 600;
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: #fff;
  letter-spacing: -0.01em;
}

.nav-right { display: flex; gap: 28px; align-items: center; }

.nav-link {
  font-size: 13px; font-weight: 500; color: var(--text-secondary);
  text-decoration: none; transition: color 0.25s;
  letter-spacing: 0.01em;
}
.nav-link:hover { color: var(--text); }
.nav-link.active { color: var(--text); }

.nav-cta {
  font-size: 12px; font-weight: 600; letter-spacing: 0.03em;
  color: #fff; background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 8px 20px; border-radius: 6px;
  text-decoration: none;
  transition: background 0.25s, border-color 0.25s;
}
.nav-cta:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.15);
}

/* ── Sections ── */
.section { padding: 160px 0; }

/* ── Section divider ── */
.section-divider {
  display: flex; align-items: center; justify-content: center;
  padding: 100px 0;
  overflow: hidden;
}
.section-divider-line {
  width: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-hover), transparent);
  transition: width 1.4s ease-out;
}
.section-divider.visible .section-divider-line {
  width: 100%;
}

.section-header {
  display: flex; justify-content: center; align-items: flex-end;
  gap: 16px;
  margin-bottom: 56px;
  text-align: center;
}

.section-label {
  font-size: 11px; font-weight: 600; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.12em;
  text-align: center;
}

.section-count {
  font-size: 12px; color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

/* ── Reveal ── */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.9s ease-out;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Staggered children */
.reveal [data-delay="1"] { opacity: 0; transform: translateY(20px); transition: opacity 0.7s 0.15s ease-out, transform 0.8s 0.15s ease-out; }
.reveal [data-delay="2"] { opacity: 0; transform: translateY(20px); transition: opacity 0.7s 0.3s ease-out, transform 0.8s 0.3s ease-out; }
.reveal [data-delay="3"] { opacity: 0; transform: translateY(20px); transition: opacity 0.7s 0.45s ease-out, transform 0.8s 0.45s ease-out; }
.reveal.visible [data-delay="1"],
.reveal.visible [data-delay="2"],
.reveal.visible [data-delay="3"] { opacity: 1; transform: translateY(0); }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.footer-watermark {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  user-select: none;
  opacity: 0.025;
  transition: opacity 0.6s;
}
footer:hover .footer-watermark {
  opacity: 0.05;
}

.footer-inner {
  max-width: 1120px; margin: 0 auto;
  padding: 40px clamp(24px, 5vw, 64px);
  display: flex; flex-direction: column; align-items: center; gap: 20px;
}

.footer-top {
  display: flex; align-items: center; gap: 20px;
}

.footer-links { display: flex; gap: 20px; }

.footer-link {
  font-size: 11px; color: var(--text-muted);
  text-decoration: none; transition: color 0.25s;
}
.footer-link:hover { color: var(--text-secondary); }

.footer-divider {
  width: 1px; height: 12px;
  background: var(--border);
}

.footer-social { display: flex; gap: 16px; align-items: center; }

.footer-social a {
  color: var(--text-muted);
  transition: color 0.25s;
  display: flex; align-items: center;
}
.footer-social a:hover { color: var(--text-secondary); }

.footer-bottom {
  display: flex; align-items: center; gap: 10px;
}

.footer-copy {
  font-size: 11px; color: var(--text-muted);
  letter-spacing: 0.03em;
}

/* ── Mobile performance ── */
@media (max-width: 768px) {
  /* Kill expensive blur filters on mobile — orbs are barely visible anyway */
  .ambient { display: none; }
  .noise { display: none; }
  /* Cheaper nav blur on mobile */
  .nav-wrap.scrolled,
  .nav-wrap.solid {
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  }
}

/* ── Page transitions ── */
body.page-exit {
  opacity: 0 !important;
  transition: opacity 0.45s ease-out !important;
}

/* View Transitions API — progressive enhancement for Chrome 126+ */
@view-transition {
  navigation: auto;
}
::view-transition-old(root) {
  animation: 0.4s ease-out both vt-out;
}
::view-transition-new(root) {
  animation: 0.4s ease-in both vt-in;
}
@keyframes vt-out { to { opacity: 0; } }
@keyframes vt-in { from { opacity: 0; } }

/* ── Shared responsive ── */
@media (max-width: 768px) {
  /* Bigger touch targets for nav links on mobile */
  .nav-link { padding: 12px 4px; -webkit-tap-highlight-color: transparent; }
  .nav-right { gap: 16px; }
}
@media (max-width: 600px) {
  nav { padding: 18px clamp(24px, 5vw, 64px); }
  .nav-link { font-size: 12px; padding: 12px 2px; }
  .nav-right { gap: 12px; }
  .nav-cta { display: none; }
  .section { padding: 100px 0; }
  .section-divider { padding: 40px 0; }
  .footer-top { flex-direction: column; gap: 12px; }
}