/* ============================================================
   Kendrick Tan — personal site
   Dark cinematic / futuristic abstract · electric cyan-teal
   ============================================================ */

:root {
  --bg:        #05070a;
  --bg-2:      #080b11;
  --surface:   #0c1119;
  --surface-2: #10161f;
  --line:      rgba(140, 170, 200, 0.12);
  --line-soft: rgba(140, 170, 200, 0.06);

  --text:      #e9f1f6;
  --text-dim:  #9fb0bd;
  --text-mute: #64727f;

  --accent:    #22d3ee;   /* electric cyan */
  --accent-2:  #5cf7e6;   /* teal glow */
  --brand:     #2b6bff;   /* logo blue */

  --glow: 0 0 60px rgba(34, 211, 238, 0.35);

  --maxw: 1200px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, monospace;
}

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

html { scroll-behavior: smooth; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: rgba(34, 211, 238, 0.28); color: #fff; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
em { font-style: normal; color: var(--accent-2); }

/* ---------- Background layers ---------- */
#bg-canvas {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: -3;
  pointer-events: none;
}
.bg-grid {
  position: fixed; inset: -10%;
  z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(120,160,200,0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(120,160,200,0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 30%, transparent 80%);
}
.bg-noise {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  opacity: 0.04; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(60% 50% at 50% 0%, rgba(43, 107, 255, 0.18), transparent 70%),
    radial-gradient(50% 40% at 85% 15%, rgba(34, 211, 238, 0.12), transparent 70%);
}

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 2px;
  z-index: 100; background: var(--line-soft);
}
.scroll-progress span {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--brand), var(--accent), var(--accent-2));
  box-shadow: var(--glow);
}

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 90;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 56px);
  transition: background .4s var(--ease), backdrop-filter .4s var(--ease), padding .4s var(--ease);
}
.nav.is-scrolled {
  background: rgba(5, 7, 10, 0.6);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
  padding-top: 16px; padding-bottom: 16px;
}
.nav__brand { display: flex; align-items: center; gap: 12px; }
.nav__logo { height: 22px; width: auto; }
.nav__name {
  font-family: var(--font-display); font-weight: 600; letter-spacing: .01em;
  font-size: 1rem;
}
.nav__links { display: flex; align-items: center; gap: clamp(16px, 3vw, 34px); }
.nav__links a {
  font-family: var(--font-mono); font-size: .82rem; letter-spacing: .02em;
  color: var(--text-dim); transition: color .25s;
}
.nav__links a:hover { color: var(--text); }
.nav__cta {
  color: var(--text) !important; border: 1px solid var(--line);
  padding: 8px 16px; border-radius: 999px; transition: all .25s;
}
.nav__cta:hover { border-color: var(--accent); box-shadow: 0 0 20px rgba(34,211,238,.2); }

/* ---------- Shared ---------- */
section { position: relative; padding: clamp(90px, 14vh, 180px) clamp(20px, 5vw, 56px); }
.section-label {
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--accent);
  display: flex; align-items: center; gap: 10px; margin-bottom: 28px;
}
.eyebrow {
  font-family: var(--font-mono); font-size: .82rem; letter-spacing: .06em;
  color: var(--text-dim); display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 30px;
}
.eyebrow__dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 12px var(--accent); animation: pulse 2.4s var(--ease) infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1);} 50% { opacity: .4; transform: scale(.7);} }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: .86rem; letter-spacing: .02em;
  padding: 14px 26px; border-radius: 999px; cursor: pointer;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .3s;
  will-change: transform;
}
.btn--lg { padding: 18px 34px; font-size: .95rem; }
.btn--primary {
  color: #04121a; font-weight: 600;
  background: linear-gradient(120deg, var(--accent-2), var(--accent) 55%, var(--brand));
  box-shadow: 0 8px 30px rgba(34, 211, 238, 0.28);
}
.btn--primary:hover { transform: translateY(-3px); box-shadow: 0 14px 44px rgba(34, 211, 238, 0.45); }
.btn--ghost { color: var(--text); border: 1px solid var(--line); }
.btn--ghost:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: 0 10px 30px rgba(34,211,238,.15); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100svh; display: flex; flex-direction: column; justify-content: center;
  padding-top: 120px;
}
.hero__inner { max-width: var(--maxw); margin: 0 auto; width: 100%; }
.hero__title {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2.6rem, 8vw, 6.6rem);
  line-height: 1.02; letter-spacing: -0.03em;
  margin: 8px 0 34px;
}
.hero__title .line { display: block; overflow: hidden; }
.hero__title .word { display: inline-block; will-change: transform; }
.hero__title .accent {
  background: linear-gradient(120deg, var(--accent-2), var(--accent), var(--brand));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__sub {
  font-size: clamp(1.05rem, 2vw, 1.35rem); color: var(--text-dim);
  max-width: 620px; margin-bottom: 40px;
}
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

.scroll-cue {
  position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--text-mute);
}
.scroll-cue__line {
  width: 1px; height: 46px; background: linear-gradient(var(--accent), transparent);
  position: relative; overflow: hidden;
}
.scroll-cue__line::after {
  content: ""; position: absolute; top: -50%; left: 0; width: 100%; height: 50%;
  background: var(--accent-2); box-shadow: 0 0 8px var(--accent);
  animation: cue 2s var(--ease) infinite;
}
@keyframes cue { 0% { top: -50%; } 100% { top: 150%; } }

/* ============================================================
   MANIFESTO
   ============================================================ */
.manifesto { max-width: var(--maxw); margin: 0 auto; }
.manifesto__body { max-width: 900px; }
.manifesto__line {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(1.6rem, 4.6vw, 3.4rem); line-height: 1.18;
  letter-spacing: -0.02em; color: var(--text-mute); margin-bottom: .3em;
}
.manifesto__line em { color: var(--text); font-style: normal; }
.manifesto__line--accent { color: var(--text); }
.manifesto__line--accent em { color: var(--accent-2); }

.manifesto__meta {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  margin-top: 80px; padding-top: 44px; border-top: 1px solid var(--line-soft);
}
.meta-card { display: flex; flex-direction: column; gap: 8px; }
.meta-card__num {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.4rem); letter-spacing: -0.03em;
  background: linear-gradient(160deg, #fff, var(--accent) 120%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.meta-card__label {
  font-family: var(--font-mono); font-size: .74rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--text-mute);
}

/* ============================================================
   VENTURES
   ============================================================ */
.ventures { max-width: var(--maxw); margin: 0 auto; }
.ventures__intro { margin-bottom: 40px; }
.ventures__heading {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2.2rem, 6vw, 4.4rem); line-height: 1.04; letter-spacing: -0.03em;
}

.ventures__track { display: flex; flex-direction: column; gap: clamp(40px, 8vh, 110px); }

.venture {
  position: relative; display: grid;
  grid-template-columns: 90px 1fr 340px; gap: clamp(20px, 4vw, 60px);
  align-items: center;
  padding: clamp(28px, 4vw, 52px);
  border: 1px solid var(--line-soft); border-radius: 20px;
  background: linear-gradient(180deg, rgba(16,22,31,0.7), rgba(8,11,17,0.5));
  backdrop-filter: blur(6px); overflow: hidden;
}
.venture::before {
  content: ""; position: absolute; inset: 0; border-radius: 20px; padding: 1px;
  background: linear-gradient(160deg, var(--v-accent, var(--accent)), transparent 45%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: .6; transition: opacity .4s;
}
.venture:hover::before { opacity: 1; }
.venture::after {
  content: ""; position: absolute; top: -40%; right: -10%;
  width: 55%; height: 180%;
  background: radial-gradient(circle, var(--v-accent, var(--accent)), transparent 62%);
  opacity: .1; filter: blur(30px); transition: opacity .5s;
}
.venture:hover::after { opacity: .2; }

.venture__index {
  font-family: var(--font-mono); font-size: 1rem; color: var(--v-accent, var(--accent));
  align-self: start; padding-top: 6px; letter-spacing: .1em;
}
.venture__index span { position: relative; }
.venture__index span::after {
  content: ""; display: block; width: 40px; height: 1px; margin-top: 12px;
  background: linear-gradient(90deg, var(--v-accent, var(--accent)), transparent);
}
.venture__tag {
  font-family: var(--font-mono); font-size: .76rem; letter-spacing: .06em;
  text-transform: uppercase; color: var(--v-accent, var(--accent)); margin-bottom: 14px;
}
.venture__name {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.8rem, 4vw, 3rem); line-height: 1.05; letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.venture__desc { color: var(--text-dim); max-width: 56ch; margin-bottom: 22px; }
.venture__facts { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }
.venture__facts li {
  font-family: var(--font-mono); font-size: .74rem; color: var(--text-dim);
  padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px;
  background: rgba(255,255,255,0.02);
}

/* Venture visuals (abstract glyphs) */
.venture__visual { display: flex; align-items: center; justify-content: center; height: 220px; }
.venture__glyph { position: relative; width: 200px; height: 200px; }

.venture__glyph--rings::before,
.venture__glyph--rings::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  border: 1px solid var(--v-accent, var(--accent)); opacity: .5;
  animation: spin 14s linear infinite;
}
.venture__glyph--rings::after { inset: 26px; border-style: dashed; animation-duration: 9s; animation-direction: reverse; opacity: .35; }
.venture__glyph--rings { box-shadow: inset 0 0 60px rgba(34,211,238,.15); border-radius: 50%; }

.venture__glyph--grid {
  background-image:
    linear-gradient(var(--v-accent, var(--accent)) 1px, transparent 1px),
    linear-gradient(90deg, var(--v-accent, var(--accent)) 1px, transparent 1px);
  background-size: 24px 24px; opacity: .5;
  mask-image: radial-gradient(circle at 50% 50%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000, transparent 70%);
  transform: perspective(400px) rotateX(55deg); animation: floaty 6s ease-in-out infinite;
}
.venture__glyph--wave {
  background:
    repeating-radial-gradient(circle at 50% 120%, transparent 0 16px, var(--v-accent, var(--accent)) 16px 17px);
  opacity: .4;
  mask-image: linear-gradient(#000, transparent);
  -webkit-mask-image: linear-gradient(#000, transparent);
  animation: floaty 7s ease-in-out infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes floaty { 0%,100% { transform: translateY(0) perspective(400px) rotateX(55deg); } 50% { transform: translateY(-10px) perspective(400px) rotateX(55deg); } }

/* Side ventures */
.side-ventures { margin-top: clamp(70px, 12vh, 140px); }
.side-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.side-card {
  padding: 30px; border: 1px solid var(--line-soft); border-radius: 16px;
  background: var(--surface); position: relative; overflow: hidden;
  transition: transform .4s var(--ease), border-color .4s;
}
a.side-card:hover { transform: translateY(-6px); border-color: var(--accent); }
.side-card h4 {
  font-family: var(--font-display); font-weight: 600; font-size: 1.35rem;
  margin-bottom: 12px;
}
.side-card p { color: var(--text-dim); font-size: .95rem; margin-bottom: 18px; }
.side-card__role {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .06em;
  text-transform: uppercase; color: var(--accent);
}

/* ============================================================
   EXPLORING
   ============================================================ */
.exploring { max-width: var(--maxw); margin: 0 auto; }
.exploring__intro { max-width: 900px; margin-bottom: clamp(48px, 8vh, 90px); }
.exploring__heading {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2.2rem, 6vw, 4.6rem); line-height: 1.04; letter-spacing: -0.035em;
  max-width: 16ch; margin-bottom: 26px;
}
.exploring__lead { color: var(--text-dim); font-size: clamp(1rem, 2vw, 1.25rem); max-width: 680px; }
.exploring__grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); }
.explore-card {
  min-height: 290px; padding: clamp(28px, 5vw, 54px);
  border-bottom: 1px solid var(--line); position: relative; overflow: hidden;
  transition: background .5s var(--ease);
}
.explore-card:nth-child(odd) { border-right: 1px solid var(--line); }
.explore-card::after {
  content: ""; position: absolute; width: 230px; height: 230px; right: -90px; bottom: -130px;
  border-radius: 50%; background: var(--accent); opacity: 0; filter: blur(80px); transition: opacity .5s;
}
.explore-card:hover { background: rgba(34, 211, 238, .035); }
.explore-card:hover::after { opacity: .13; }
.explore-card__num { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .14em; color: var(--accent); }
.explore-card h3 { font-family: var(--font-display); font-size: clamp(1.5rem, 3vw, 2.2rem); margin: 48px 0 14px; }
.explore-card p { color: var(--text-dim); max-width: 46ch; }

/* ============================================================
   CONNECT
   ============================================================ */
.connect { text-align: center; }
.connect__inner { max-width: 820px; margin: 0 auto; }
.connect .section-label { justify-content: center; }
.connect__heading {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2.4rem, 7vw, 5rem); line-height: 1.05; letter-spacing: -0.03em;
  margin-bottom: 26px;
}
.connect__sub { color: var(--text-dim); font-size: clamp(1.05rem, 2vw, 1.3rem); margin-bottom: 40px; }
.connect__actions { display: flex; justify-content: center; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--line-soft);
  padding: 60px clamp(20px, 5vw, 56px) 44px;
  display: flex; flex-direction: column; align-items: center; gap: 16px; text-align: center;
}
.footer__brand { display: flex; align-items: center; gap: 12px; }
.footer__logo { height: 24px; }
.footer__brand span { font-family: var(--font-display); font-weight: 600; }
.footer__meta { color: var(--text-mute); font-size: .9rem; }
.footer__links { display: flex; gap: 24px; }
.footer__links a {
  font-family: var(--font-mono); font-size: .82rem; color: var(--text-dim);
  transition: color .25s; border-bottom: 1px solid transparent; padding-bottom: 2px;
}
.footer__links a:hover { color: var(--accent); border-color: var(--accent); }
.footer__copy { color: var(--text-mute); font-size: .78rem; font-family: var(--font-mono); }

/* ============================================================
   Reveal states (JS-driven)
   ============================================================ */
.reveal-fade { opacity: 0; transform: translateY(24px); }
.reveal-lines { }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .venture { grid-template-columns: 60px 1fr; }
  .venture__visual { display: none; }
  .manifesto__meta { grid-template-columns: repeat(2, 1fr); gap: 30px 20px; }
  .side-grid { grid-template-columns: 1fr; }
  .nav__name { display: none; }
}
@media (max-width: 600px) {
  .venture { grid-template-columns: 1fr; gap: 16px; }
  .venture__index { padding-top: 0; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
  .exploring__grid { grid-template-columns: 1fr; }
  .explore-card:nth-child(odd) { border-right: 0; }
  .explore-card { min-height: 250px; }
  .nav__links a:not(.nav__cta) { display: none; }
}

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important;
      transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .reveal-fade { opacity: 1 !important; transform: none !important; }
}