:root {
  --bg-0: #08111d;
  --bg-1: #0d1828;
  --bg-2: #101f31;
  --panel: rgba(10, 20, 32, 0.68);
  --panel-strong: rgba(10, 18, 30, 0.9);
  --line: rgba(110, 148, 193, 0.18);
  --line-strong: rgba(119, 179, 255, 0.24);
  --gold: #f2c879;
  --gold-soft: #d3a94d;
  --blue: #80c6ff;
  --mint: #bedff5;
  --text: #edf5ff;
  --text-soft: #9cafc7;
  --shadow: 0 26px 80px rgba(3, 8, 16, 0.42);
  --radius-lg: 30px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --font: "Inter", "SF Pro Display", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(74, 110, 179, 0.18), transparent 28%),
    radial-gradient(circle at 80% 18%, rgba(242, 200, 121, 0.12), transparent 20%),
    linear-gradient(160deg, var(--bg-0), var(--bg-1) 42%, var(--bg-2));
  color: var(--text);
  font-family: var(--font);
}

body {
  overflow-x: hidden;
  overflow-y: auto;
}

.intro {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at center, rgba(124, 176, 255, 0.12), transparent 28%),
    linear-gradient(180deg, rgba(6, 13, 24, 0.98), rgba(5, 11, 20, 0.98));
  z-index: 30;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.8s ease;
}

.boot-banner {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: min(92vw, 860px);
  z-index: 40;
  padding: 14px 18px;
  border-radius: 16px;
  border: 1px solid rgba(255, 163, 132, 0.28);
  background: rgba(35, 15, 15, 0.88);
  color: #ffe4d8;
  font-size: 0.96rem;
  line-height: 1.5;
  box-shadow: 0 18px 48px rgba(7, 10, 18, 0.34);
  backdrop-filter: blur(10px);
}

.intro--active {
  opacity: 1;
}

.intro--done {
  opacity: 0;
}

.intro__core {
  position: relative;
  width: min(72vw, 860px);
  min-height: 320px;
  display: grid;
  place-items: center;
}

.intro__halo,
.intro__orb {
  position: absolute;
  border-radius: 999px;
  inset: auto;
}

.intro__halo {
  width: 440px;
  height: 440px;
  background: radial-gradient(circle, rgba(132, 193, 255, 0.16), transparent 72%);
  filter: blur(6px);
  animation: haloPulse 4.5s ease-in-out infinite;
}

.intro__orb {
  width: 180px;
  height: 180px;
  border: 1px solid rgba(126, 193, 255, 0.18);
  box-shadow: inset 0 0 42px rgba(132, 199, 255, 0.15), 0 0 30px rgba(232, 196, 120, 0.16);
  animation: orbitSweep 2.9s cubic-bezier(0.25, 1, 0.3, 1) forwards;
}

.intro__title-wrap {
  position: relative;
  text-align: center;
  width: min(100%, 760px);
  z-index: 2;
}

.intro__eyebrow {
  color: var(--gold);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 0.78rem;
  margin-bottom: 16px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.9s ease 0.28s forwards;
}

.intro__title {
  margin: 0;
  font-size: clamp(2.8rem, 7vw, 5.8rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
  opacity: 0;
  transform: translateY(18px);
  animation: fadeUp 0.9s ease 0.42s forwards;
}

.intro__subtitle {
  margin: 18px auto 0;
  max-width: 620px;
  color: var(--text-soft);
  font-size: 1.05rem;
  line-height: 1.7;
  opacity: 0;
  transform: translateY(18px);
  animation: fadeUp 1s ease 0.66s forwards;
}

.page-shell {
  position: relative;
  min-height: 100vh;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.ambient {
  position: fixed;
  border-radius: 999px;
  filter: blur(14px);
  opacity: 0.75;
  pointer-events: none;
}

.ambient--left {
  width: 420px;
  height: 420px;
  left: -90px;
  top: 90px;
  background: radial-gradient(circle, rgba(109, 179, 255, 0.15), transparent 70%);
  animation: drift 18s ease-in-out infinite;
}

.ambient--right {
  width: 320px;
  height: 320px;
  right: 8%;
  bottom: 4%;
  background: radial-gradient(circle, rgba(242, 200, 121, 0.13), transparent 70%);
  animation: drift 14s ease-in-out infinite reverse;
}

.glass {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 22px;
}

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

.brand__glyph {
  position: relative;
  width: 58px;
  height: 58px;
  border-radius: 18px;
  border: 1px solid rgba(136, 189, 255, 0.2);
  background: linear-gradient(180deg, rgba(127, 174, 255, 0.18), rgba(12, 24, 38, 0.18));
  overflow: hidden;
  box-shadow: inset 0 0 26px rgba(89, 149, 229, 0.14);
}

.brand__ring {
  position: absolute;
  inset: 11px;
  border-radius: 999px;
  border: 1px solid rgba(242, 200, 121, 0.35);
  animation: spin 7.2s linear infinite;
}

.brand__dot {
  position: absolute;
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: radial-gradient(circle, #fff4d7, #f2c879 65%, rgba(242, 200, 121, 0.4));
  box-shadow: 0 0 10px rgba(242, 200, 121, 0.45);
}

.brand__dot--a { top: 10px; left: 23px; }
.brand__dot--b { top: 24px; left: 8px; }
.brand__dot--c { top: 24px; right: 8px; }
.brand__dot--d { bottom: 9px; left: 23px; }

.brand__title {
  font-size: 1.08rem;
  font-weight: 700;
}

.brand__subtitle {
  color: var(--text-soft);
  font-size: 0.92rem;
}

.topbar__meta {
  display: flex;
  gap: 10px;
}

.pill,
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(136, 179, 255, 0.16);
  background: rgba(11, 20, 32, 0.42);
  color: var(--gold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.74rem;
  font-weight: 600;
}

.layout {
  display: grid;
  gap: 18px;
  align-items: start;
}

.viewport {
  padding: 18px;
  display: flex;
  flex-direction: column;
}

.viewport__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 14px;
}

.viewport__header h2 {
  margin: 10px 0 0;
  font-size: 1.8rem;
  letter-spacing: -0.04em;
}

.viewport__hint {
  margin: 10px 0 0;
  color: var(--text-soft);
  font-size: 0.94rem;
  line-height: 1.6;
  max-width: 760px;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(10, 19, 30, 0.62);
  color: var(--text-soft);
  border: 1px solid rgba(123, 171, 231, 0.14);
}

.status__dot {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: radial-gradient(circle, #fff2ca, var(--gold));
  box-shadow: 0 0 18px rgba(242, 200, 121, 0.52);
}

#sceneCanvas {
  width: 100%;
  height: auto;
  min-height: 640px;
  border-radius: 24px;
  border: 1px solid rgba(122, 164, 219, 0.18);
  background: linear-gradient(180deg, rgba(8, 18, 30, 0.72), rgba(7, 15, 26, 0.94));
}

.dock {
  display: grid;
  grid-template-columns: 1fr 1.35fr 1fr;
  gap: 18px;
  align-items: start;
}

.panel {
  padding: 18px;
}

.dock__controls,
.dock__telemetry,
.dock__notes {
  min-height: 100%;
}

.panel p {
  color: var(--text-soft);
  line-height: 1.7;
  margin: 12px 0 0;
}

.control-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.button {
  border: 1px solid rgba(125, 170, 232, 0.18);
  border-radius: 16px;
  background: rgba(10, 18, 30, 0.74);
  color: var(--text);
  padding: 14px 16px;
  font-size: 0.98rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.button:hover {
  transform: translateY(-2px);
  border-color: rgba(145, 188, 247, 0.34);
  background: rgba(12, 24, 40, 0.88);
}

.button--primary {
  color: #0b1522;
  background: linear-gradient(135deg, #9dddff, var(--gold));
  border-color: transparent;
}

.slider-stack {
  margin-top: 18px;
  display: grid;
  gap: 14px;
}

.slider {
  display: grid;
  gap: 8px;
}

.slider__meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}

.slider__label {
  font-weight: 600;
  font-size: 0.95rem;
}

.slider__value {
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.slider input[type="range"] {
  width: 100%;
  appearance: none;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(120, 191, 255, 0.22), rgba(242, 200, 121, 0.22));
  outline: none;
}

.slider input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: linear-gradient(180deg, #fff6de, var(--gold));
  box-shadow: 0 0 16px rgba(242, 200, 121, 0.35);
  border: none;
}

.telemetry-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.benchmark-strip {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.benchmark-card,
.compare-card,
.demo-card {
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(8, 16, 26, 0.72);
  border: 1px solid rgba(116, 159, 215, 0.12);
}

.benchmark-card__label,
.compare-card__title,
.demo-card__eyebrow,
.demo-card__progress {
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.benchmark-card__value {
  display: block;
  margin-top: 8px;
  font-size: 1.18rem;
  letter-spacing: -0.03em;
}

.benchmark-card p,
.compare-card p {
  margin-top: 8px;
  font-size: 0.9rem;
  line-height: 1.55;
}

.compare-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.verdict-card,
.shortcut-card {
  margin-top: 14px;
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(8, 16, 26, 0.72);
  border: 1px solid rgba(116, 159, 215, 0.12);
}

.verdict-card__eyebrow,
.shortcut-card__title {
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.verdict-card p {
  margin-top: 10px;
  line-height: 1.65;
}

.metric {
  padding: 14px;
  border-radius: var(--radius-sm);
  background: rgba(9, 17, 28, 0.72);
  border: 1px solid rgba(118, 161, 218, 0.12);
}

.metric__label {
  display: block;
  color: var(--text-soft);
  font-size: 0.82rem;
  margin-bottom: 6px;
}

.metric strong {
  font-size: 1.05rem;
}

.readouts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 16px;
}

.readout {
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(116, 159, 215, 0.12);
  background: rgba(8, 16, 26, 0.72);
}

.readout__title {
  color: var(--text-soft);
  font-size: 0.88rem;
  margin-bottom: 10px;
}

.readout canvas {
  width: 100%;
  display: block;
  border-radius: 14px;
}

.feature-list {
  margin: 14px 0 0;
  padding-left: 20px;
  color: var(--text-soft);
  line-height: 1.7;
}

.feature-list li + li {
  margin-top: 8px;
}

.demo-card {
  margin-top: 16px;
}

.demo-card__meta,
.demo-card__actions {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.demo-card__progress {
  color: var(--blue);
}

.demo-card h3 {
  margin: 12px 0 0;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
}

.demo-card p {
  margin-top: 10px;
}

.demo-card__actions {
  margin-top: 14px;
}

.demo-card__actions .button {
  flex: 1;
}

.help-callout {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(8, 16, 26, 0.74);
  border: 1px solid rgba(118, 159, 215, 0.12);
}

.help-callout__title {
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.help-callout p {
  margin-top: 10px;
}

.shortcut-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 14px;
  color: var(--text-soft);
  font-size: 0.92rem;
}

kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  padding: 4px 8px;
  margin-right: 8px;
  border-radius: 10px;
  border: 1px solid rgba(145, 188, 247, 0.18);
  background: rgba(10, 18, 30, 0.8);
  color: var(--text);
  font: 600 0.8rem/1 var(--font);
  box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0.04);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes orbitSweep {
  0% { transform: scale(0.7) rotate(0deg); opacity: 0.1; }
  55% { transform: scale(1.05) rotate(180deg); opacity: 1; }
  100% { transform: scale(1) rotate(360deg); opacity: 0.32; }
}

@keyframes haloPulse {
  0%, 100% { transform: scale(0.92); opacity: 0.56; }
  50% { transform: scale(1.08); opacity: 0.92; }
}

@keyframes drift {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(14px, -18px, 0); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@media (max-width: 1180px) {
  .dock {
    grid-template-columns: 1fr;
  }

  .benchmark-strip,
  .compare-grid,
  .readouts,
  .shortcut-grid {
    grid-template-columns: 1fr;
  }

  .demo-card__meta,
  .demo-card__actions {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 1480px) {
  .benchmark-strip {
    grid-template-columns: 1fr 1fr;
  }
}