/* MATEO·CREX Synthesis Console — bright-green tech system */
:root {
  --bg: #060807;
  --ink: #f2f5f1;
  --dim: #8b938c;
  --mut: #565d57;
  --green: #1ED760;
  --line: rgba(30, 215, 96, 0.22);
  --hair: rgba(255, 255, 255, 0.08);
  --mono: "Space Grotesk", "Noto Sans KR", monospace, sans-serif;
  --sans: "Noto Sans KR", "Space Grotesk", sans-serif;
}

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

html { scroll-behavior: auto; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  word-break: keep-all;
  overflow-x: hidden;
}

/* ── WebGL 엔진 ── */
#engine {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(120% 90% at 50% 50%, transparent 55%, rgba(0, 0, 0, 0.55) 100%);
}

/* ── 시스템 셸 ── */
.shell { position: fixed; inset: 18px; z-index: 5; pointer-events: none; }
.bracket { position: absolute; width: 22px; height: 22px; border: 1px solid var(--line); }
.bracket.tl { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.bracket.tr { top: 0; right: 0; border-left: 0; border-bottom: 0; }
.bracket.bl { bottom: 0; left: 0; border-right: 0; border-top: 0; }
.bracket.br { bottom: 0; right: 0; border-left: 0; border-top: 0; }

.sys-top {
  position: fixed;
  top: 26px;
  left: 44px;
  right: 44px;
  z-index: 6;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.28em;
  color: var(--dim);
}

.sys-id { color: var(--ink); font-weight: 500; }
.sys-stage { color: var(--green); }
.sys-live { display: inline-flex; align-items: center; gap: 0.5em; }
.sys-live .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.sys-rail { position: fixed; right: 30px; top: 18vh; bottom: 18vh; width: 1px; z-index: 6; }
.rail-line { position: absolute; inset: 0; background: var(--hair); }
.rail-progress { position: absolute; top: 0; left: 0; width: 100%; height: 0%; background: var(--green); box-shadow: 0 0 8px rgba(30, 215, 96, 0.7); }

/* ── 스테이지 ── */
main { position: relative; z-index: 3; }

.stage { min-height: 100vh; display: grid; place-items: center; padding: 12vh 6vw; }

.stage-inner { width: min(1180px, 100%); }
.stage-inner.hero { text-align: center; }
.stage-inner.split { display: flex; justify-content: flex-start; }
.stage-inner.split.right { justify-content: flex-end; }

.mono-tag {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--green);
  margin-bottom: 1.4rem;
}
.mono-tag.center { text-align: center; }

.hero-line {
  font-family: var(--sans);
  font-size: clamp(1.9rem, 4.6vw, 3.9rem);
  font-weight: 500;
  line-height: 1.28;
  letter-spacing: -0.01em;
}
.hero-line .accent { color: var(--green); text-shadow: 0 0 34px rgba(30, 215, 96, 0.35); }

.hero-sub {
  margin-top: 1.6rem;
  font-family: var(--mono);
  font-style: italic;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--dim);
}

.scroll-cue { margin-top: 8vh; color: var(--mut); }
.cue-arrow { display: inline-block; animation: cueDown 1.8s ease-in-out infinite; }
@keyframes cueDown { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(6px); } }

/* ── 패널 (하드 프레임 다크 서피스) ── */
.panel {
  width: min(520px, 100%);
  padding: clamp(1.8rem, 3vw, 2.6rem);
  background: rgba(7, 10, 8, 0.72);
  border: 1px solid var(--hair);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.panel h2, .stage h2 {
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 1.1rem;
}
h2.center { text-align: center; margin-bottom: 3rem; }

.body-copy { font-size: 0.95rem; line-height: 1.9; color: var(--dim); }
.body-copy.center { text-align: center; margin-top: 1.2rem; }

.stat-row { display: flex; gap: 2.2rem; margin-top: 1.8rem; padding-top: 1.4rem; border-top: 1px solid var(--hair); }
.stat b { display: block; font-family: var(--mono); font-size: 1.4rem; font-weight: 700; color: var(--green); }
.stat span { font-size: 0.68rem; letter-spacing: 0.12em; color: var(--mut); }

/* ── 필라 리스트 ── */
.pillar-list { list-style: none; counter-reset: p; }
.pillar-list li {
  counter-increment: p;
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  align-items: baseline;
  column-gap: 0.9rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--hair);
  opacity: 0.38;
  transition: opacity 0.4s ease;
}
.pillar-list li::before {
  content: "0" counter(p);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--mut);
}
.pillar-list li.on { opacity: 1; }
.pillar-list li.on::before { color: var(--green); }
.pillar-list b { display: block; font-family: var(--mono); font-size: 0.95rem; font-weight: 500; letter-spacing: 0.04em; }
.pillar-list span { grid-column: 2; font-size: 0.78rem; color: var(--dim); }

/* ── 렌더 스트립 ── */
.render-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.1rem;
}
.render-strip figure {
  position: relative;
  border: 1px solid var(--hair);
  background: #0a0d0b;
  overflow: hidden;
}
.render-strip img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: saturate(0.9) brightness(0.9);
  transition: filter 0.5s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.render-strip figure:hover img { filter: saturate(1) brightness(1); transform: scale(1.04); }
.render-strip figcaption {
  padding: 0.6rem 0.7rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--dim);
  border-top: 1px solid var(--hair);
}
.render-strip em { font-style: normal; color: var(--green); margin-left: 0.4em; }

/* ── CTA ── */
.cta-row { display: flex; gap: 1rem; justify-content: center; margin-top: 2.6rem; flex-wrap: wrap; }
.cta {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: #04140a;
  background: var(--green);
  padding: 0.95rem 1.8rem;
  border-radius: 2px;
  text-decoration: none;
  box-shadow: 0 0 26px rgba(30, 215, 96, 0.35);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.cta:hover { box-shadow: 0 0 44px rgba(30, 215, 96, 0.55); transform: translateY(-2px); }
.cta.ghost { background: transparent; color: var(--green); border: 1px solid var(--line); box-shadow: none; }
.footer-line { margin-top: 9vh; color: var(--mut); }

/* ── 워드 리빌 ── */
.reveal-words .w { display: inline-block; overflow: hidden; vertical-align: bottom; }
.reveal-words .w > i { display: inline-block; font-style: normal; transform: translateY(110%); }

/* ── 반응형 ── */
@media (max-width: 900px) {
  .sys-top { left: 24px; right: 24px; }
  .sys-rail { display: none; }
  .render-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stage { padding: 10vh 7vw; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal-words .w > i { transform: none; }
  .cue-arrow, .sys-live .dot { animation: none; }
}