/* Solar System Royale — landing. Direction: cosmic scale.
   Dark = true-black space, cinematic. Light = blueprint/chart mode. */

:root {
  --bg: #000000;
  --bg-soft: #07070c;
  --ink: #e8e6f0;
  --ink-dim: #9b98ab;
  --ink-faint: #55525f;
  --line: rgba(232, 230, 240, 0.10);
  --ring: rgba(232, 230, 240, 0.14);
  --zone: rgba(155, 109, 214, 0.35);
  --accent: #9b6dd6;
  --accent-2: #ffb347;
  --card: rgba(255, 255, 255, 0.028);
  --mono: "SF Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: ui-sans-serif, -apple-system, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f2ea;
    --bg-soft: #efeadf;
    --ink: #1e2230;
    --ink-dim: #565b6e;
    --ink-faint: #9096a8;
    --line: rgba(30, 34, 48, 0.16);
    --ring: rgba(30, 34, 48, 0.30);
    --zone: rgba(120, 76, 180, 0.45);
    --accent: #6d43ab;
    --accent-2: #c77a1d;
    --card: rgba(30, 34, 48, 0.035);
    color-scheme: light;
  }
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* starfield canvas (dark mode only) */
#stars {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}
@media (prefers-color-scheme: light) { #stars { display: none; } }

main, .site-head, .site-foot { position: relative; z-index: 1; }

/* ---------------- header ---------------- */
.site-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem clamp(1.2rem, 4vw, 3rem);
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.06em;
  font-size: 0.85rem;
  text-transform: uppercase;
}
.head-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------------- hero ---------------- */
.hero {
  max-width: 72rem;
  margin: 0 auto;
  padding: clamp(2.5rem, 7vh, 5.5rem) clamp(1.2rem, 4vw, 3rem) 2rem;
  text-align: center;
  position: relative;
}

/* nebula accent — the one vivid gradient */
.hero::before {
  content: "";
  position: absolute;
  top: 4%;
  left: 50%;
  transform: translateX(-50%);
  width: min(60rem, 110vw);
  height: 34rem;
  background:
    radial-gradient(38% 55% at 36% 42%, rgba(155, 109, 214, 0.32), transparent 70%),
    radial-gradient(30% 45% at 64% 58%, rgba(255, 138, 61, 0.20), transparent 70%),
    radial-gradient(22% 35% at 52% 34%, rgba(74, 127, 212, 0.16), transparent 70%);
  filter: blur(28px);
  pointer-events: none;
  z-index: -1;
}
@media (prefers-color-scheme: light) {
  .hero::before { opacity: 0.5; filter: blur(40px); }
}

.kicker {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent-2);
}

.hero h1 {
  margin-top: 1.1rem;
  font-size: clamp(2.6rem, 8vw, 5.6rem);
  line-height: 1.02;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--accent) 10%, var(--accent-2) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  max-width: 40rem;
  margin: 1.6rem auto 0;
  color: var(--ink-dim);
  font-size: clamp(1rem, 2.2vw, 1.2rem);
}

.hero-cta {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.7rem;
}

.play-btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  color: #221405;
  background: linear-gradient(100deg, var(--accent-2) 0%, #ffcf7d 100%);
  border-radius: 999px;
  box-shadow: 0 0 24px color-mix(in srgb, var(--accent-2) 35%, transparent);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.play-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 36px color-mix(in srgb, var(--accent-2) 55%, transparent);
}

.cta-note {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-faint);
}

.status-cta { margin-top: 1.8rem; }

/* ---------------- orbit chart ---------------- */
.orbit-wrap {
  margin: clamp(1.5rem, 5vh, 3.5rem) auto 0;
  max-width: min(46rem, 92vw);
}
.orbit-chart {
  width: 100%;
  height: auto;
  display: block;
}

.ring {
  fill: none;
  stroke: var(--ring);
  stroke-width: 1.2;
}
.zone-ring {
  fill: none;
  stroke: var(--zone);
  stroke-width: 2;
  stroke-dasharray: 10 12;
  animation: zone-collapse 51s linear infinite;
}
@keyframes zone-collapse {
  0%   { r: 600px; opacity: 0.9; }
  8%   { r: 600px; }              /* grace period */
  88%  { r: 90px;  opacity: 0.9; }
  97%  { r: 90px;  opacity: 0; }
  100% { r: 600px; opacity: 0; }
}

.planet {
  stroke: rgba(0, 0, 0, 0.35);
  stroke-width: 1;
}
.p-label {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.2em;
  fill: var(--ink-dim);
  text-anchor: middle;
}

/* orbital motion is SMIL (animateTransform) — paused by main.js when
   prefers-reduced-motion is set */

/* blueprint mode: chart look */
@media (prefers-color-scheme: light) {
  .ring { stroke-dasharray: 3 5; }
  .sun-glow { opacity: 0.35; }
  .planet { stroke: var(--ink); stroke-width: 1.5; }
  .p-label { fill: var(--ink-dim); }
}

.orbit-wrap figcaption {
  margin-top: 1.1rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  line-height: 1.7;
  color: var(--ink-faint);
  max-width: 34rem;
  margin-left: auto;
  margin-right: auto;
}

/* ---------------- shared section chrome ---------------- */
section { position: relative; }
.briefing, .scale, .manifest, .loop, .status {
  max-width: 68rem;
  margin: 0 auto;
  padding: clamp(3.5rem, 10vh, 6.5rem) clamp(1.2rem, 4vw, 3rem) 0;
}
.sec-label {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2.2rem;
}

/* ---------------- briefing ---------------- */
.brief-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.2rem;
}
.brief-grid article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.6rem 1.5rem 1.7rem;
}
.brief-grid .num {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--accent-2);
  letter-spacing: 0.2em;
}
.brief-grid h3 {
  margin: 0.7rem 0 0.6rem;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}
.brief-grid p {
  color: var(--ink-dim);
  font-size: 0.95rem;
}

/* ---------------- scale ---------------- */
.scale-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 2.4rem 1.5rem;
}
.stat { display: flex; flex-direction: column; gap: 0.5rem; }
.stat-n {
  font-size: clamp(2.8rem, 6vw, 4.4rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.stat-n i {
  font-style: normal;
  font-size: 0.45em;
  font-weight: 600;
  color: var(--ink-dim);
  margin-left: 0.1em;
  letter-spacing: 0;
}
.stat-l {
  font-family: var(--mono);
  font-size: 0.74rem;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

/* ---------------- manifest ---------------- */
.manifest-note {
  color: var(--ink-dim);
  font-size: 0.95rem;
  max-width: 36rem;
  margin-bottom: 1.6rem;
}
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; }
.manifest table {
  width: 100%;
  min-width: 40rem;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 0.8rem;
}
.manifest th, .manifest td {
  text-align: left;
  padding: 0.7rem 1rem;
  white-space: nowrap;
}
.manifest thead th {
  font-weight: 500;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  border-bottom: 1px solid var(--line);
}
.manifest tbody tr + tr td { border-top: 1px solid var(--line); }
.manifest td:last-child { color: var(--ink-dim); }
.sw {
  display: inline-block;
  width: 0.7em;
  height: 0.7em;
  border-radius: 50%;
  background: var(--c);
  margin-right: 0.6em;
  vertical-align: baseline;
}

/* ---------------- loop ---------------- */
.loop-list {
  list-style: none;
  counter-reset: phase;
  display: grid;
  gap: 0;
}
.loop-list li {
  counter-increment: phase;
  display: grid;
  grid-template-columns: 3.2rem 9rem 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: 1.3rem 0;
  border-bottom: 1px solid var(--line);
}
.loop-list li::before {
  content: "T-" counter(phase);
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--accent-2);
  letter-spacing: 0.12em;
}
.loop-list b {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.loop-list span { color: var(--ink-dim); font-size: 0.95rem; }
@media (max-width: 40rem) {
  .loop-list li { grid-template-columns: 3.2rem 1fr; }
  .loop-list span { grid-column: 2; }
}

/* ---------------- status ---------------- */
.status-body {
  max-width: 42rem;
  display: grid;
  gap: 1rem;
  color: var(--ink-dim);
}
.status-body b { color: var(--ink); }

/* ---------------- footer ---------------- */
.site-foot {
  margin-top: clamp(4rem, 12vh, 7rem);
  padding: 3.5rem clamp(1.2rem, 4vw, 3rem) 4rem;
  text-align: center;
  border-top: 1px solid var(--line);
  color: var(--ink-dim);
}
.foot-orbit { margin-bottom: 1rem; opacity: 0.9; }
.foot-cta { font-size: 1.05rem; color: var(--ink); }
.foot-cta a {
  color: var(--accent-2);
  text-decoration: none;
  border-bottom: 1px solid color-mix(in srgb, var(--accent-2) 40%, transparent);
}
.foot-cta a:hover { border-bottom-color: var(--accent-2); }
.foot-fine a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}
.foot-fine a:hover { color: var(--ink-dim); }
.foot-fine {
  margin-top: 0.9rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-faint);
  max-width: 34rem;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

/* ---------------- reveal on scroll ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in { opacity: 1; transform: none; }

/* ---------------- reduced motion ---------------- */
@media (prefers-reduced-motion: reduce) {
  .zone-ring { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}