/* ============================================================
   Hari Krishnan C · AI Motion Video Editor
   Editorial / cinematic portfolio
   ============================================================ */

:root {
  --bg: #07080a;
  --ink: #f4f1ea;
  --muted: rgba(244, 241, 234, 0.55);
  --faint: rgba(244, 241, 234, 0.32);
  --line: rgba(244, 241, 234, 0.14);
  --accent: #5eead4;
  --warm: #e8a87c;

  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Space Grotesk", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;

  --pad: clamp(1.25rem, 5vw, 6rem);
  --maxw: 1600px;
}

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

html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.5;
  overflow-x: hidden;
  cursor: none;
}

/* Show native cursor on touch / no custom cursor */
@media (hover: none) { body { cursor: auto; } .cursor { display: none; } }

a { color: inherit; text-decoration: none; }
.mono { font-family: var(--mono); font-weight: 400; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.72rem; }
.italic { font-style: italic; font-weight: 300; }

/* ---------- Three.js background ---------- */
#three-bg {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  display: block;
}
.bg-overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(120% 90% at 50% 0%, transparent 40%, rgba(7, 8, 10, 0.55) 100%),
    linear-gradient(180deg, rgba(7, 8, 10, 0.25) 0%, transparent 30%);
}

/* ---------- Progress + cursor ---------- */
.progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px; width: 100%;
  background: linear-gradient(90deg, var(--accent), var(--warm));
  transform: scaleX(0);
  transform-origin: 0 50%;
  z-index: 60;
}
.cursor {
  position: fixed;
  top: 0; left: 0;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  mix-blend-mode: difference;
  pointer-events: none;
  z-index: 70;
  transform: translate(-50%, -50%);
  transition: width 0.25s ease, height 0.25s ease, background 0.25s ease;
  will-change: transform;
}
.cursor.is-hover { width: 46px; height: 46px; background: var(--warm); }

/* ---------- Loader ---------- */
#loader {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--bg);
  display: grid;
  place-items: center;
}
.loader-inner { display: flex; flex-direction: column; align-items: center; gap: 1.1rem; width: min(320px, 70vw); }
.loader-inner .mono { color: var(--muted); }
.loader-sub { font-size: 0.6rem !important; color: var(--faint); }
.loader-bar { width: 100%; height: 1px; background: var(--line); overflow: hidden; }
.loader-bar span { display: block; height: 100%; width: 100%; background: var(--accent); transform: scaleX(0); transform-origin: 0 50%; }

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem var(--pad);
  mix-blend-mode: difference;
}
.nav-logo { font-family: var(--serif); font-weight: 600; font-size: 1.4rem; letter-spacing: -0.02em; }
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 2rem; }
.nav-links a {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink);
  position: relative;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -4px;
  width: 0; height: 1px; background: currentColor; transition: width 0.35s ease;
}
.nav-links a:hover::after { width: 100%; }
.nav-status { font-family: var(--mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; display: flex; align-items: center; gap: 0.5rem; color: var(--muted); }
.nav-status .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
@media (max-width: 760px) { .nav-links { display: none; } }

/* ---------- Layout ---------- */
main { position: relative; z-index: 2; }
.section {
  position: relative;
  padding: clamp(6rem, 14vh, 12rem) var(--pad);
  max-width: var(--maxw);
  margin: 0 auto;
}
.section-index {
  display: inline-block;
  color: var(--accent);
  margin-bottom: 2.5rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--line);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  z-index: 2;
  min-height: 100svh;
  padding: 0 var(--pad) clamp(2rem, 5vh, 4rem);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  max-width: var(--maxw);
  margin: 0 auto;
}
.hero-eyebrow {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  color: var(--muted);
  margin-bottom: auto;
  padding-top: 28vh;
}
.hero-eyebrow .mono:first-child { color: var(--accent); }
.hero-title {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 0.82;
  letter-spacing: -0.03em;
  font-size: clamp(4.5rem, 21vw, 22rem);
  margin: 1.5rem 0;
}
.hero-title .line { display: block; overflow: hidden; }
.hero-title .italic { font-weight: 300; }
.hero-foot {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}
.hero-lead { max-width: 42ch; font-size: clamp(1rem, 1.4vw, 1.25rem); color: var(--ink); }
.hero-scroll { display: flex; flex-direction: column; align-items: center; gap: 0.6rem; color: var(--muted); }
.hero-scroll .scroll-line { width: 1px; height: 40px; background: linear-gradient(var(--accent), transparent); animation: drop 1.8s infinite; }
@keyframes drop { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- Marquee ---------- */
.marquee {
  position: relative; z-index: 2;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 1.4rem 0;
  background: rgba(7, 8, 10, 0.4);
  backdrop-filter: blur(2px);
}
.marquee-track { display: flex; align-items: center; gap: 2.5rem; width: max-content; will-change: transform; }
.marquee-track span { font-family: var(--serif); font-size: clamp(1.4rem, 3vw, 2.4rem); font-weight: 400; white-space: nowrap; }
.marquee-track b { color: var(--accent); font-size: 1rem; }

/* ---------- Section headings ---------- */
.statement {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: -0.02em;
  font-size: clamp(2rem, 5.5vw, 5.5rem);
  max-width: 18ch;
}
.statement .st-line { overflow: hidden; }
.section-head {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 0.9;
  letter-spacing: -0.02em;
  font-size: clamp(3rem, 11vw, 11rem);
  margin-bottom: 4rem;
}
.section-head .st-line { overflow: hidden; }

/* SplitType chars */
.st-char { display: inline-block; will-change: transform; }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: clamp(2rem, 6vw, 6rem);
  margin-top: 4rem;
}
.about-body { font-size: clamp(1.05rem, 1.5vw, 1.45rem); line-height: 1.6; color: var(--muted); max-width: 52ch; }
.stats { display: flex; flex-direction: column; gap: 1.5rem; }
.stat { display: flex; align-items: baseline; gap: 1.2rem; border-top: 1px solid var(--line); padding-top: 1.2rem; }
.stat strong { font-family: var(--serif); font-weight: 500; font-size: clamp(2.5rem, 5vw, 4rem); line-height: 1; color: var(--ink); }
.stat span { color: var(--muted); font-size: 0.95rem; }
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; } }

/* ---------- Skills cards ---------- */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.card {
  background: rgba(10, 12, 14, 0.72);
  backdrop-filter: blur(8px);
  padding: clamp(1.5rem, 2.5vw, 2.5rem);
  min-height: 320px;
  display: flex;
  flex-direction: column;
  transition: background 0.4s ease, transform 0.4s ease;
}
.card:hover { background: rgba(18, 22, 25, 0.85); }
.card-no { color: var(--faint); margin-bottom: auto; }
.card h3 { font-family: var(--serif); font-weight: 500; font-size: clamp(1.4rem, 2vw, 2rem); margin: 3rem 0 1.2rem; letter-spacing: -0.01em; }
.card ul { list-style: none; display: flex; flex-direction: column; gap: 0.55rem; }
.card li { color: var(--muted); font-size: 0.95rem; padding-left: 1rem; position: relative; }
.card li::before { content: ""; position: absolute; left: 0; top: 0.6em; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.card-accent { background: rgba(94, 234, 212, 0.06); }
.card-accent .card-no, .card-accent h3 { color: var(--accent); }
.card-accent li::before { background: var(--warm); }
@media (max-width: 1100px) { .cards { grid-template-columns: repeat(2, 1fr); } .card { min-height: 260px; } }
@media (max-width: 560px) { .cards { grid-template-columns: 1fr; } .card { min-height: auto; } }

/* ---------- Timeline ---------- */
.timeline { list-style: none; }
.t-row {
  display: grid;
  grid-template-columns: 60px 1.4fr 2fr auto;
  gap: 2rem;
  align-items: baseline;
  padding: 2.2rem 0;
  border-top: 1px solid var(--line);
  transition: padding-left 0.4s ease;
}
.t-row:last-child { border-bottom: 1px solid var(--line); }
.t-row:hover { padding-left: 1rem; }
.t-no { color: var(--accent); }
.t-main h3 { font-family: var(--serif); font-weight: 500; font-size: clamp(1.3rem, 2vw, 1.9rem); letter-spacing: -0.01em; }
.t-co { color: var(--muted); font-size: 0.9rem; margin-top: 0.3rem; }
.t-desc { color: var(--muted); font-size: 0.95rem; max-width: 46ch; }
.t-year { color: var(--faint); white-space: nowrap; }
@media (max-width: 900px) {
  .t-row { grid-template-columns: 40px 1fr; gap: 0.6rem 1rem; }
  .t-desc { grid-column: 1 / -1; }
  .t-year { grid-column: 2; }
}

/* ---------- Selected work ---------- */
.selected-sub { color: var(--muted); font-size: clamp(1.1rem, 1.8vw, 1.5rem); margin: 1.5rem 0 4rem; max-width: 40ch; }
.case { display: flex; flex-direction: column; }
.case-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 2rem;
  padding: 2rem 0;
  border-top: 1px solid var(--line);
  align-items: baseline;
}
.case-row:last-child { border-bottom: 1px solid var(--line); }
.case-label { color: var(--accent); padding-top: 0.3rem; }
.case-row p { font-family: var(--serif); font-weight: 300; font-size: clamp(1.15rem, 2vw, 1.8rem); line-height: 1.35; color: var(--ink); }
.behance-link {
  display: inline-flex; align-items: center; gap: 0.8rem;
  margin-top: 3.5rem;
  font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.85rem;
  padding-bottom: 0.5rem; border-bottom: 1px solid var(--line);
  transition: gap 0.3s ease, color 0.3s ease;
}
.behance-link span { color: var(--accent); transition: transform 0.3s ease; }
.behance-link:hover { color: var(--accent); gap: 1.4rem; }
.behance-link:hover span { transform: translateX(6px); }
@media (max-width: 700px) { .case-row { grid-template-columns: 1fr; gap: 0.6rem; } }

/* ---------- Curtain footer ---------- */
.footer-spacer { height: 100vh; pointer-events: none; }
.curtain {
  position: fixed;
  left: 0; bottom: 0;
  width: 100%;
  height: 100vh;
  z-index: 6;
  display: grid;
  place-items: center;
  padding: var(--pad);
  background:
    radial-gradient(120% 100% at 50% 100%, rgba(94, 234, 212, 0.08), transparent 60%),
    rgba(6, 7, 9, 0.94);
  border-top: 1px solid var(--line);
  will-change: transform;
}
.curtain.static { position: relative; height: auto; transform: none !important; padding-block: clamp(5rem, 12vh, 9rem); }
.curtain-inner { width: 100%; max-width: var(--maxw); display: flex; flex-direction: column; align-items: center; text-align: center; gap: 1.5rem; }
.curtain-eyebrow { color: var(--accent); }
.curtain-title {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 0.85;
  letter-spacing: -0.03em;
  font-size: clamp(3rem, 13vw, 13rem);
}
.curtain-title .line { display: block; overflow: hidden; }
.curtain-title .italic { font-weight: 300; }
.big-mail {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 3.5vw, 2.6rem);
  font-weight: 300;
  font-style: italic;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.3rem;
  margin-top: 1rem;
  transition: color 0.3s ease, border-color 0.3s ease;
}
.big-mail:hover { color: var(--accent); border-color: var(--accent); }
.curtain-links { display: flex; gap: clamp(1.5rem, 4vw, 3rem); flex-wrap: wrap; justify-content: center; margin-top: 0.5rem; }
.curtain-links a { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.8rem; color: var(--muted); transition: color 0.3s ease; }
.curtain-links a:hover { color: var(--ink); }
.curtain-note { color: var(--muted); max-width: 48ch; font-size: 0.95rem; margin-top: 1rem; }
.curtain-base { display: flex; justify-content: space-between; width: 100%; max-width: var(--maxw); color: var(--faint); margin-top: 3rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
@media (max-width: 600px) { .curtain-base { flex-direction: column; gap: 0.4rem; text-align: center; align-items: center; } }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  body { cursor: auto; }
  .cursor, .progress { display: none; }
}