/* Tokens follow the Noopher design system (ported from slidra-homepage). */
:root {
  --black: #000000;
  --graphite: #272729;
  --crimson: #C41E3A;
  --crimson-hover: #D14154;
  --crimson-active: #9E102D;
  --dark-text: #DCDCDC;
  --dark-text-2: #ADADAD;
  --dark-line: rgba(255, 255, 255, 0.10);

  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "PingFang TC", "Noto Sans TC", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --ease-in: cubic-bezier(0.215, 0.61, 0.355, 1);
  --ease: cubic-bezier(0.645, 0.045, 0.355, 1);
  --radius: 8px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--black);
  color: var(--dark-text);
  font: 400 14px/1.571 var(--sans);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, p, ul { margin: 0; }
a { color: inherit; text-decoration: none; }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 24px; }
:focus-visible { outline: 2px solid var(--crimson-hover); outline-offset: 3px; border-radius: 3px; }

.eyebrow {
  font: 500 13px/1 var(--mono);
  letter-spacing: 0.08em;
  color: var(--dark-text-2);
  margin-bottom: 24px;
}

/* Background layers: flowing canvas + faint line grid */
.flow-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; }
.grid-bg {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--dark-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--dark-line) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center center;
  opacity: 0.22;
  mask-image: radial-gradient(ellipse 70% 50% at 50% 35%, #000 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 50% at 50% 35%, #000 10%, transparent 70%);
}

/* ---------- Nav ---------- */
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 24px; padding-bottom: 24px; }
.brand { color: #fff; font-weight: 600; font-size: 18px; letter-spacing: 0.01em; }
.nav__side { display: inline-flex; align-items: center; gap: 16px; }
.tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--dark-line);
  border-radius: 5px;
  font: 500 12px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dark-text-2);
}
@keyframes pulse { 50% { opacity: 0.3; } }

.lang { display: inline-flex; align-items: center; gap: 6px; font: 500 12px/1 var(--mono); letter-spacing: 0.08em; color: #8a8a8d; }
.lang-btn { padding: 4px 2px; border: 0; background: none; color: inherit; font: inherit; letter-spacing: inherit; cursor: pointer; }
.lang-btn:hover { color: var(--dark-text); }
.lang-btn.active { color: #fff; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 20px;
  border-radius: var(--radius);
  background: var(--crimson);
  color: #fff;
  font: 600 14px/1.25 var(--sans);
  transition: background-color 0.2s var(--ease);
}
.btn:hover { background: var(--crimson-hover); }
.btn:active { background: var(--crimson-active); }
.btn--ghost { background: rgba(39, 39, 41, 0.72); border: 1px solid rgba(255, 255, 255, 0.14); }
.btn--ghost:hover { background: rgba(39, 39, 41, 0.9); border-color: var(--crimson); }

/* ---------- Home: pinned stage with scenes ---------- */
/* The home page never scrolls; home.js steps between scenes on wheel / swipe / keys. */
html.is-stage, html.is-stage body { height: 100%; overflow: hidden; overscroll-behavior: none; }
.stage {
  position: relative;
  height: 100vh; height: 100svh;
  display: flex; flex-direction: column;
  overflow: hidden;
  isolation: isolate;
}

/* Panels stack in one grid cell; only the active one is visible. */
.panels { flex: 1; display: grid; align-items: center; padding-bottom: 32px; }
.panel {
  grid-area: 1 / 1;
  justify-self: start;
  width: 100%;
  max-width: 760px;
  opacity: 0;
  perspective: 1000px; perspective-origin: 0 50%;
  will-change: opacity;
}
.panel > * { transform-origin: 0 50%; will-change: transform, filter; }
.panel[inert] { pointer-events: none; }
.panel[data-panel="0"] { opacity: 1; }
/* Panel transforms are computed by home.js; keep text hidden until then so it never jumps. */
.stage:not(.is-ready) .panels { visibility: hidden; }

.hero__title {
  font-size: clamp(40px, 5.2vw, 72px);
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -0.035em;
  color: #fff;
  text-wrap: balance;
}
.panel__title {
  font-size: clamp(32px, 3.8vw, 52px);
  line-height: 1.1;
  text-wrap: balance;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: #fff;
}
.panel__text { margin: 20px 0 0; max-width: 32em; font-size: clamp(16px, 1.4vw, 18px); line-height: 1.7; color: var(--dark-text-2); }
.accent { color: var(--crimson); }

.member {
  display: inline-flex; align-items: center; gap: 20px;
  margin-top: 28px; padding: 16px 24px 16px 16px;
  background: rgba(39, 39, 41, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  backdrop-filter: blur(6px);
  transition: border-color 0.2s var(--ease);
}
.member:hover { border-color: var(--crimson); }
.member img { width: 72px; height: 72px; border-radius: 50%; object-fit: cover; }
.member__name { color: #fff; font-size: 18px; font-weight: 600; }
.member__title { color: var(--dark-text-2); }
.member__cta { margin-top: 6px; font: 500 12px/1 var(--mono); letter-spacing: 0.08em; color: var(--crimson-hover); }

.contact { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; }
.company { margin-top: 24px; font: 500 13px/1.6 var(--mono); letter-spacing: 0.04em; color: #8a8a8d; }

.stage__meta {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding-bottom: 24px;
  font: 500 13px/1 var(--mono);
  letter-spacing: 0.08em;
  color: #8a8a8d;
}
.byline { font: 400 13px/1 var(--sans); letter-spacing: 0; }
.progress { display: inline-flex; align-items: center; gap: 12px; }
.progress__hint { color: var(--crimson-hover); animation: pulse 2s var(--ease) infinite; transition: opacity 0.3s var(--ease); }
.progress.is-scrolled .progress__hint { opacity: 0; animation: none; }
.progress__bar { position: relative; width: 96px; height: 1px; background: rgba(255, 255, 255, 0.16); }
.progress__bar span { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: var(--crimson); }

/* ---------- Holspire scenes ---------- */
.brand small { margin-left: 8px; font: 500 12px/1 var(--mono); letter-spacing: 0.08em; color: #8a8a8d; }
.hero__title .accent { display: block; }
.cta { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 12px; }

/* Agent (top-down) meets Holspire (bottom-up), as on the promo card. */
.axis { margin-top: 32px; display: grid; gap: 12px; max-width: 560px; }
.axis__row {
  display: grid; grid-template-columns: 40px 1fr; align-items: center; gap: 16px;
  padding: 16px 20px;
  background: rgba(39, 39, 41, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  backdrop-filter: blur(6px);
}
.axis__arrow { font: 600 24px/1 var(--mono); color: #fff; text-align: center; }
.axis__row--holspire { border-color: rgba(196, 30, 58, 0.6); }
.axis__row--holspire .axis__arrow, .axis__row--holspire .axis__name { color: var(--crimson-hover); }
.axis__name { display: block; color: #fff; font-size: 18px; font-weight: 600; }
.axis__sub { display: block; margin-top: 2px; font: 400 13px/1.4 var(--mono); color: #8a8a8d; }
.axis__sum { margin-top: 4px; font: 500 13px/1.6 var(--mono); letter-spacing: 0.04em; color: var(--dark-text-2); }

/* Demo scene: a muted, looping full-bleed video behind the panel; home.js fades it with the scene. */
.demo-bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; opacity: 0; pointer-events: none; background: #000; }
.demo-bg iframe {
  position: absolute; left: 50%; top: 50%; border: 0;
  width: max(100vw, 177.78svh); height: max(100svh, 56.25vw); /* cover the stage at 16:9 */
  transform: translate(-50%, -50%);
}
/* Shade the top and bottom so the nav, title and progress stay readable over the video. */
.demo-bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent 20%, transparent 62%, rgba(0, 0, 0, 0.8));
}
.panel--demo { align-self: end; }
.panel--demo .eyebrow { color: var(--dark-text); }
.sound {
  margin-top: 20px; padding: 10px 16px;
  border: 1px solid rgba(255, 255, 255, 0.24); border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.55); backdrop-filter: blur(6px);
  color: #fff; font: 500 13px/1 var(--mono); letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color 0.2s var(--ease);
}
.sound:hover { border-color: var(--crimson); }
.sound[aria-pressed="true"] .sound__off, .sound[aria-pressed="false"] .sound__on { display: none; }

.chip-group { margin-top: 28px; }
.chip-group + .chip-group { margin-top: 20px; }
.chip-group__label { font: 500 12px/1 var(--mono); letter-spacing: 0.08em; color: var(--crimson-hover); margin-bottom: 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; list-style: none; }
.chips li {
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(39, 39, 41, 0.55);
  font-size: 14px; color: var(--dark-text);
}

.values { margin-top: 32px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.value {
  padding: 22px 24px;
  background: rgba(39, 39, 41, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  backdrop-filter: blur(6px);
}
.value__title { color: var(--crimson-hover); font-size: 18px; font-weight: 600; line-height: 1.3; }
.value__text { margin-top: 8px; color: var(--dark-text-2); font-size: 15px; line-height: 1.6; }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .wrap { padding-left: 16px; padding-right: 16px; }
  .panels { padding-bottom: 24px; }
  .panel__text { margin-top: 16px; }
  .stage__meta { font-size: 12px; }
  .progress__hint { display: none; }
  .stage__meta > * { white-space: nowrap; }
  .progress__bar { width: 64px; }
  .brand small { display: none; }
  .axis, .values, .cta { margin-top: 20px; }
  .values { grid-template-columns: 1fr; }
  .value { padding: 16px 18px; }
  .chip-group { margin-top: 18px; }
  .chips li { padding: 6px 11px; font-size: 13px; }
}

/* Portrait screens: show the whole video at full width instead of cropping it. */
@media (max-aspect-ratio: 1/1) {
  .demo-bg iframe { width: 100vw; height: 56.25vw; top: 42%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01s !important; animation-delay: 0s !important; transition-duration: 0.01s !important; }
}