/* ============================================================
   Astral Orchestrator · celestial design system
   Light "day" theme by default; dark "night" via [data-theme="dark"].
   The resolved theme is set by site.js before first paint.
   ============================================================ */

:root {
  color-scheme: light;

  --bg: #f4f2ec;
  --bg-soft: #ece9e0;
  --surface: #fffdf7;
  --surface-2: #f8f5ec;
  --glass: rgb(255 253 247 / 0.72);
  --text: #16213b;
  --text-strong: #0d1526;
  --muted: #55617c;
  --line: #ddd6c6;
  --line-strong: #c9c1ad;

  --gold: #8a5800;
  --gold-bright: #e3a008;
  --focus-ring: #8a5800;
  --gold-soft: #fbe9bd;
  --sky: #0f6d99;
  --sky-bright: #1f9ed6;
  --sky-soft: #d5eef8;
  --violet: #6b4fc6;
  --violet-soft: #e6def8;

  --header-bg: #f4f2ec;
  --hero-bg: #0b1122;
  --hero-text: #eef2fc;
  --hero-muted: #b7c2da;
  --code-bg: #0b1122;
  --code-text: #dce8fb;

  --shadow-sm: 0 0.15rem 0.5rem rgb(23 32 56 / 0.07);
  --shadow-md: 0 0.9rem 2.4rem rgb(23 32 56 / 0.11);
  --shadow-glow: 0 0 2.5rem rgb(227 160 8 / 0.25);

  --radius: 1rem;
  --radius-sm: 0.6rem;
  --content: 72rem;

  --font-body: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --bg: #070b18;
  --bg-soft: #0a1020;
  --surface: #0e1527;
  --surface-2: #121b31;
  --glass: rgb(14 21 39 / 0.66);
  --text: #e8edfa;
  --text-strong: #f7f9ff;
  --muted: #9da9c6;
  --line: #243050;
  --line-strong: #33436e;

  --gold: #f2ba42;
  --gold-bright: #ffd36a;
  --focus-ring: #ffd36a;
  --gold-soft: #2c2307;
  --sky: #63c9f2;
  --sky-bright: #8adbf7;
  --sky-soft: #0d2b3d;
  --violet: #a585f0;
  --violet-soft: #241d44;

  --header-bg: rgb(7 11 24 / 0.78);
  --hero-bg: #070b18;
  --hero-text: #eef2fc;
  --hero-muted: #a9b6d4;
  --code-bg: #050912;
  --code-text: #d7e5fb;

  --shadow-sm: 0 0.15rem 0.5rem rgb(0 0 0 / 0.35);
  --shadow-md: 0 0.9rem 2.6rem rgb(0 0 0 / 0.45);
  --shadow-glow: 0 0 3rem rgb(242 186 66 / 0.22);
}

/* ---------- Reset & base ---------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color 0.35s ease, color 0.35s ease;
}

img,
svg {
  display: block;
  max-width: 100%;
}

svg {
  fill: currentColor;
}

a {
  color: var(--sky);
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.16em;
}

a:hover {
  color: var(--gold);
}

button,
a {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 0.18rem solid var(--focus-ring);
  outline-offset: 0.18rem;
  border-radius: 0.25rem;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  transform: translateY(-180%);
  padding: 0.55rem 0.8rem;
  color: #0b1122;
  background: var(--gold-bright);
  border-radius: 0.4rem;
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(var(--content), calc(100% - 2.5rem));
  margin-inline: auto;
}

/* ---------- Ambient background ---------- */

.ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.ambient::before,
.ambient::after {
  position: absolute;
  width: 44rem;
  height: 44rem;
  content: "";
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
}

.ambient::before {
  top: -18rem;
  right: -12rem;
  background: radial-gradient(circle, var(--sky-soft) 0%, transparent 65%);
}

.ambient::after {
  bottom: -20rem;
  left: -14rem;
  background: radial-gradient(circle, var(--gold-soft) 0%, transparent 65%);
}

:root[data-theme="dark"] .ambient::before,
:root[data-theme="dark"] .ambient::after {
  opacity: 0.9;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 1.25rem;
  min-height: 4.25rem;
  padding-block: 0.5rem;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-strong);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.1;
  text-decoration: none;
}

.brand:hover {
  color: var(--text-strong);
}

.brand-mark {
  width: 2.1rem;
  height: 2.1rem;
  color: var(--gold-bright);
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.brand:hover .brand-mark {
  transform: rotate(72deg);
}

.brand-word {
  font-size: 1.02rem;
  white-space: nowrap;
}

.brand-word em {
  color: var(--muted);
  font-style: normal;
  font-weight: 600;
}

.site-nav {
  flex: 1 1 auto;
  min-width: 0;
}

.site-nav ul,
.footer-links,
.check-list,
.issue-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 0.1rem 0.35rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.site-nav ul::-webkit-scrollbar {
  display: none;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.45rem 0.65rem;
  color: var(--muted);
  border-radius: 0.5rem;
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a[aria-current="page"] {
  color: var(--text-strong);
  background: var(--surface-2);
  box-shadow: inset 0 0 0 1px var(--line);
}

.site-nav a:hover {
  color: var(--text-strong);
  background: var(--surface-2);
}

.header-actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.55rem;
  margin-left: auto;
}

/* ---------- Theme toggle ---------- */

.theme-toggle {
  display: grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  padding: 0;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 50%;
  cursor: pointer;
  transition: color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.theme-toggle:hover {
  color: var(--gold);
  border-color: var(--gold);
  transform: rotate(18deg);
}

.theme-toggle svg {
  display: none;
  width: 1.15rem;
  height: 1.15rem;
}

.theme-toggle[data-choice="light"] [data-theme-icon="light"],
.theme-toggle[data-choice="dark"] [data-theme-icon="dark"],
.theme-toggle[data-choice="system"] [data-theme-icon="system"] {
  display: block;
}

/* ---------- GitHub star button ---------- */

.star-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 2.6rem;
  padding: 0;
  color: var(--text-strong);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 2rem;
  box-shadow: var(--shadow-sm);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.15s ease;
}

.star-button:hover {
  color: var(--text-strong);
  border-color: var(--gold-bright);
  box-shadow: var(--shadow-glow);
}

.star-button:active {
  transform: scale(0.96);
}

.star-button-part {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.8rem;
}

.star-button-part + .star-button-part {
  border-left: 1px solid var(--line);
}

.star-button .gh-mark {
  width: 1.15rem;
  height: 1.15rem;
}

.star-icon {
  width: 1rem;
  height: 1rem;
  color: var(--muted);
  transition: color 0.25s ease, transform 0.4s cubic-bezier(0.34, 1.8, 0.64, 1);
}

.star-button:hover .star-icon {
  color: var(--gold-bright);
  transform: rotate(72deg) scale(1.15);
}

/* ---------- Typography ---------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.9rem;
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow::before {
  display: inline-block;
  width: 1.4rem;
  height: 1px;
  content: "";
  background: currentColor;
}

h1,
h2,
h3 {
  color: var(--text-strong);
  font-family: var(--font-body);
  font-weight: 800;
  line-height: 1.12;
}

h1 {
  max-width: 17ch;
  margin: 0;
  font-size: clamp(2.4rem, 6.5vw, 4.4rem);
  letter-spacing: -0.045em;
}

h2 {
  margin: 0;
  font-size: clamp(1.65rem, 3.6vw, 2.4rem);
  letter-spacing: -0.03em;
}

h3 {
  margin: 0;
  font-size: 1.18rem;
  letter-spacing: -0.015em;
}

p {
  margin: 0;
}

.gradient-text {
  color: var(--gold);
}

/* Keep the hero's luminous treatment against its dedicated dark backdrop. */
.hero .gradient-text {
  color: var(--gold-bright);
}

/* Marker-style highlight for key terms */
.hl {
  padding-inline: 0.08em;
  color: var(--text-strong);
  font-weight: 700;
  background: linear-gradient(to top, rgb(242 186 66 / 0.32) 38%, transparent 38%);
  border-radius: 0.12em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.hero .hl {
  color: #fff;
}

/* Check list (requirements, facts) */
.check-list {
  display: grid;
  gap: 0.6rem;
  margin-top: 0.75rem;
}

.check-list li {
  position: relative;
  padding-left: 1.55rem;
  color: var(--muted);
}

.check-list li::before {
  position: absolute;
  left: 0;
  color: var(--gold-bright);
  content: "✓";
  font-weight: 800;
}

.check-list li strong {
  color: var(--text-strong);
}

/* ---------- Buttons ---------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.75rem 1.35rem;
  border: 1px solid transparent;
  border-radius: 0.7rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.25s ease, background 0.25s ease,
    border-color 0.25s ease, color 0.25s ease;
}

.button:active {
  transform: translateY(1px) scale(0.98);
}

.button-primary {
  color: #131a08;
  background: linear-gradient(135deg, #ffd36a 0%, #f0b73f 100%);
  box-shadow: 0 0.55rem 1.6rem rgb(240 183 63 / 0.35);
}

.button-primary:hover {
  color: #131a08;
  box-shadow: 0 0.8rem 2.2rem rgb(240 183 63 / 0.5);
  transform: translateY(-2px);
}

.button-quiet {
  color: var(--hero-text);
  border-color: rgb(255 255 255 / 0.22);
  background: rgb(255 255 255 / 0.04);
}

.button-quiet:hover {
  color: #fff;
  border-color: var(--sky-bright);
  background: rgb(255 255 255 / 0.09);
  transform: translateY(-2px);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  color: var(--hero-text);
  background:
    radial-gradient(ellipse 60% 45% at 78% 8%, rgb(99 201 242 / 0.14) 0%, transparent 70%),
    radial-gradient(ellipse 55% 40% at 12% 90%, rgb(242 186 66 / 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 35% at 90% 85%, rgb(165 133 240 / 0.12) 0%, transparent 70%),
    var(--hero-bg);
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image:
    radial-gradient(1.5px 1.5px at 12% 22%, rgb(255 255 255 / 0.85) 50%, transparent 51%),
    radial-gradient(1px 1px at 32% 68%, rgb(255 255 255 / 0.6) 50%, transparent 51%),
    radial-gradient(1.8px 1.8px at 55% 15%, rgb(255 255 255 / 0.75) 50%, transparent 51%),
    radial-gradient(1px 1px at 70% 45%, rgb(255 255 255 / 0.5) 50%, transparent 51%),
    radial-gradient(1.4px 1.4px at 86% 26%, rgb(255 255 255 / 0.8) 50%, transparent 51%),
    radial-gradient(1px 1px at 44% 88%, rgb(255 255 255 / 0.55) 50%, transparent 51%),
    radial-gradient(1.2px 1.2px at 94% 70%, rgb(255 255 255 / 0.6) 50%, transparent 51%),
    radial-gradient(1px 1px at 6% 78%, rgb(255 255 255 / 0.5) 50%, transparent 51%);
  animation: starfield-drift 14s ease-in-out infinite alternate;
}

@keyframes starfield-drift {
  from { opacity: 0.55; transform: translateY(0); }
  to { opacity: 1; transform: translateY(-0.6rem); }
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(16rem, 0.92fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
  padding-block: clamp(3.5rem, 9vw, 7rem);
}

.hero-grid > * {
  min-width: 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.3rem;
  padding: 0.4rem 0.9rem;
  color: var(--gold-bright);
  background: rgb(242 186 66 / 0.1);
  border: 1px solid rgb(242 186 66 / 0.32);
  border-radius: 2rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.hero-badge .pulse-dot {
  width: 0.5rem;
  height: 0.5rem;
  background: var(--gold-bright);
  border-radius: 50%;
  animation: pulse-dot 2.2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgb(242 186 66 / 0.55); }
  55% { box-shadow: 0 0 0 0.45rem rgb(242 186 66 / 0); }
}

.hero h1 {
  color: var(--hero-text);
}

.hero-copy {
  max-width: 36rem;
  margin-top: 1.35rem;
  color: var(--hero-muted);
  font-size: clamp(1.05rem, 2vw, 1.22rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
  margin-top: 2.4rem;
  padding: 0;
  list-style: none;
}

.hero-facts li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--hero-muted);
  font-size: 0.88rem;
  font-weight: 600;
}

.hero-facts svg {
  width: 0.95rem;
  height: 0.95rem;
  color: var(--gold-bright);
}

/* Hero orbital scene */

.hero-orbit {
  position: relative;
  max-width: 27rem;
  margin-inline: auto;
}

.hero-orbit::before {
  position: absolute;
  inset: 12%;
  content: "";
  background: radial-gradient(circle, rgb(242 186 66 / 0.22) 0%, transparent 62%);
  filter: blur(22px);
}

.orbit-scene {
  position: relative;
  width: 100%;
  height: auto;
}

.orbit-ring {
  fill: none;
  stroke: rgb(255 255 255 / 0.16);
  stroke-dasharray: 3 7;
  stroke-width: 1;
}

.orbit-group {
  transform-box: view-box;
  transform-origin: center;
}

.orbit-group--luna {
  animation: orbit-spin 26s linear infinite;
}

.orbit-group--terra {
  animation: orbit-spin 17s linear infinite reverse;
}

.orbit-ring--review {
  stroke: rgb(242 186 66 / 0.32);
  transform-box: view-box;
  transform-origin: center;
  animation: orbit-spin 70s linear infinite reverse;
}

@keyframes orbit-spin {
  to { transform: rotate(360deg); }
}

.orbit-sol {
  color: var(--gold-bright);
  filter: drop-shadow(0 0 14px rgb(242 186 66 / 0.65));
}

.orbit-luna {
  color: var(--sky-bright);
  filter: drop-shadow(0 0 8px rgb(99 201 242 / 0.6));
}

.orbit-terra {
  color: var(--violet);
  filter: drop-shadow(0 0 8px rgb(165 133 240 / 0.6));
}

.orbit-cutout {
  fill: var(--hero-bg);
}

.orbit-legend {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
  margin-top: 1.1rem;
}

.orbit-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.38rem 0.85rem;
  color: var(--hero-text);
  background: rgb(255 255 255 / 0.05);
  border: 1px solid rgb(255 255 255 / 0.14);
  border-radius: 2rem;
  font-size: 0.8rem;
  font-weight: 600;
  backdrop-filter: blur(6px);
}

.orbit-chip i {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
}

.orbit-chip .dot-sol { background: var(--gold-bright); }
.orbit-chip .dot-luna { background: var(--sky-bright); }
.orbit-chip .dot-terra { background: var(--violet); }
.orbit-chip .dot-review { background: transparent; border: 2px dashed var(--gold-bright); }

/* ---------- Sections ---------- */

.section {
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
}

.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(16rem, 1.15fr);
  gap: 1rem 3rem;
  align-items: end;
  margin-bottom: clamp(2rem, 5vw, 3.25rem);
}

.section-intro > p:last-child,
.page-lede {
  max-width: 42rem;
  color: var(--muted);
  font-size: 1.06rem;
}

/* ---------- Cards ---------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.15rem;
}

.two-up {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.15rem;
}

.pillar-card,
.mode-card,
.plain-card,
.install-card,
.info-panel,
.policy-card,
.chart-card,
.conclusion-card {
  position: relative;
  padding: clamp(1.35rem, 3vw, 1.9rem);
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.pillar-card:hover,
.mode-card:hover,
.plain-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-0.3rem);
}

.pillar-card p,
.mode-card p,
.plain-card p,
.info-panel p,
.policy-card p,
.conclusion-card p {
  margin-top: 0.7rem;
  color: var(--muted);
}

.card-icon {
  display: grid;
  place-items: center;
  width: 2.9rem;
  height: 2.9rem;
  margin-bottom: 1.1rem;
  border-radius: 0.85rem;
}

.card-icon svg {
  width: 1.45rem;
  height: 1.45rem;
}

.card-icon--sol {
  color: var(--gold-bright);
  background: var(--gold-soft);
}

.card-icon--lanes {
  color: var(--sky-bright);
  background: var(--sky-soft);
}

.card-icon--review {
  color: var(--violet);
  background: var(--violet-soft);
}

/* ---------- Modes ---------- */

.modes-section {
  background: var(--bg-soft);
  border-block: 1px solid var(--line);
}

.mode-card {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.modes-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mode-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  gap: 0.45rem;
  margin-bottom: 0.85rem;
  padding: 0.28rem 0.7rem;
  border-radius: 2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mode-tag--comet {
  color: var(--gold);
  background: var(--gold-soft);
}

.mode-tag--orbit {
  color: var(--sky);
  background: var(--sky-soft);
}

.mode-tag--event-horizon {
  color: var(--violet);
  background: var(--violet-soft);
}

.mode-tag--singularity {
  color: var(--text-strong);
  background: color-mix(in srgb, var(--gold-soft) 52%, var(--sky-soft));
  border: 1px solid color-mix(in srgb, var(--gold) 46%, var(--sky));
}

.mode-tag--pulsar {
  color: var(--gold);
  background: var(--gold-soft);
  border: 1px solid currentColor;
}

.mode-tag--morph {
  color: var(--violet);
  background: var(--violet-soft);
  border: 1px solid currentColor;
}

.mode-tag--constellation {
  color: var(--sky);
  background: var(--sky-soft);
  border: 1px solid currentColor;
}

.mode-tag--hypernova {
  color: var(--text-strong);
  background: color-mix(in srgb, var(--violet-soft) 55%, var(--gold-soft));
  border: 1px solid color-mix(in srgb, var(--violet) 55%, var(--gold));
}

.mode-card--pulsar {
  border-color: color-mix(in srgb, var(--gold) 38%, var(--line));
}

.mode-card--singularity {
  border-color: color-mix(in srgb, var(--gold) 28%, var(--sky));
}

.mode-card--morph {
  border-color: color-mix(in srgb, var(--violet) 38%, var(--line));
}

.mode-card--constellation {
  border-color: color-mix(in srgb, var(--sky) 38%, var(--line));
}

.mode-card--hypernova {
  border-color: color-mix(in srgb, var(--violet) 42%, var(--gold));
}

.mode-card .mode-best {
  margin-top: auto;
  padding-top: 0.9rem;
  font-size: 0.86rem;
}

.mode-card .mode-best strong {
  color: var(--text-strong);
}

.mode-guard {
  max-width: 60rem;
  margin: 1.4rem auto 0;
  padding: 1.15rem 1.35rem;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-left: 0.32rem solid var(--violet);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.mode-guard h3 {
  margin: 0;
  color: var(--text-strong);
  font-size: 1rem;
}

.mode-guard p {
  margin: 0.45rem 0 0;
}

/* ---------- Pulsar mode ---------- */

.pulsar-section {
  border-bottom: 1px solid var(--line);
}

.pulsar-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.15rem;
}

.pulsar-card {
  padding: clamp(1.35rem, 3vw, 1.9rem);
  color: var(--muted);
  background: var(--glass);
  border: 1px solid var(--line);
  border-top: 0.32rem solid var(--gold-bright);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.pulsar-card h3 {
  color: var(--text-strong);
}

.attribution-note {
  max-width: 54rem;
  margin: 1.5rem auto 0;
  padding: 1rem 1.2rem;
  color: var(--muted);
  background: var(--gold-soft);
  border-left: 0.28rem solid var(--gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.92rem;
}

.attribution-note p {
  margin: 0;
}

/* ---------- How it works: interactive route ---------- */

.route-map {
  max-width: 60rem;
  margin-inline: auto;
}

.route-step {
  position: relative;
  background: var(--glass);
  border: 1px solid var(--line);
  border-left: 0.35rem solid var(--sky-bright);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.route-step:hover {
  box-shadow: var(--shadow-md);
}

.route-step--sol,
.route-step--astra,
.route-step--review {
  border-left-color: var(--gold-bright);
}

.route-step--terra {
  border-left-color: var(--violet);
}

.route-step details {
  margin: 0;
}

.route-step summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.95rem;
  align-items: center;
  min-height: 3.5rem;
  padding: 1.05rem 1.2rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.route-step summary::-webkit-details-marker {
  display: none;
}

.route-number {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  color: var(--sky);
  background: var(--sky-soft);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
}

.route-step--sol .route-number,
.route-step--astra .route-number,
.route-step--review .route-number {
  color: var(--gold);
  background: var(--gold-soft);
}

.route-step--terra .route-number {
  color: var(--violet);
  background: var(--violet-soft);
}

.route-title {
  display: block;
  color: var(--text-strong);
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.route-tagline {
  display: block;
  margin-top: 0.15rem;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.route-chevron {
  display: grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  color: var(--muted);
  border-radius: 50%;
  transition: transform 0.3s ease, background 0.25s ease, color 0.25s ease;
}

.route-chevron svg {
  width: 1.05rem;
  height: 1.05rem;
}

.route-step summary:hover .route-chevron {
  color: var(--gold);
  background: var(--gold-soft);
}

.route-step details[open] .route-chevron {
  transform: rotate(180deg);
}

.route-detail {
  padding: 0 1.2rem 1.2rem 4.65rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.route-detail p + p {
  margin-top: 0.6rem;
}

.route-detail strong {
  color: var(--text-strong);
}

.route-connector {
  width: 0.18rem;
  height: 2.4rem;
  margin-inline: auto;
  border-radius: 1rem;
  background-image: linear-gradient(to bottom, var(--sky-bright) 52%, transparent 48%);
  background-size: 100% 0.85rem;
  background-repeat: repeat-y;
  opacity: 0.75;
  animation: route-flow 0.9s linear infinite;
}

@keyframes route-flow {
  to { background-position-y: 0.85rem; }
}

.route-branches {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 1.1rem;
  border: 1px dashed var(--line-strong);
  border-radius: calc(var(--radius) + 0.4rem);
}

.route-branches-label {
  position: absolute;
  top: -0.72rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.08rem 0.8rem;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 2rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.route-caption {
  max-width: 40rem;
  margin: 1.75rem auto 0;
  color: var(--muted);
  font-size: 0.93rem;
  text-align: center;
}

.route-hint {
  margin: 0 auto 1.75rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-align: center;
}

.route-hint kbd {
  padding: 0.1rem 0.5rem;
  color: var(--gold);
  background: var(--gold-soft);
  border-radius: 0.4rem;
  font-family: inherit;
}

/* ---------- Benchmark evidence ---------- */

.evidence-section {
  background: var(--bg-soft);
  border-block: 1px solid var(--line);
}

.evidence-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(15rem, 0.75fr);
  gap: 1.15rem;
  align-items: stretch;
}

.chart-card h3 {
  margin-bottom: 0.35rem;
}

.chart-sub {
  color: var(--muted);
  font-size: 0.9rem;
}

.chart {
  display: grid;
  gap: 1.05rem;
  margin-top: 1.6rem;
}

.chart-row {
  display: grid;
  grid-template-columns: minmax(6.5rem, 9rem) 1fr minmax(3.6rem, auto);
  gap: 0.75rem;
  align-items: center;
}

.chart-label {
  color: var(--text-strong);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.3;
}

.chart-label small {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 500;
}

.chart-track {
  height: 1.7rem;
  overflow: hidden;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 0.5rem;
}

.chart-bar {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 0.35rem;
  transform: scaleX(1);
  transform-origin: left;
  transition: transform 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}

.js .chart:not(.in-view) .chart-bar {
  transform: scaleX(0);
}

.chart-bar--full {
  width: 82.4%;
  background: linear-gradient(90deg, var(--violet) 0%, var(--sky-bright) 100%);
}

.chart-bar--comet {
  width: 38.1%;
  background: linear-gradient(90deg, var(--sky-bright) 0%, var(--gold-bright) 100%);
}

.chart-bar--core {
  width: 27.4%;
  background: var(--gold-bright);
}

.chart-bar--pulsar {
  width: 100%;
  background: linear-gradient(90deg, var(--gold) 0%, var(--violet) 100%);
}

.chart-row .chart-value {
  color: var(--text-strong);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  text-align: right;
}

.chart-footnote {
  margin-top: 1.4rem;
  padding-top: 1rem;
  color: var(--muted);
  border-top: 1px dashed var(--line-strong);
  font-size: 0.82rem;
}

.stat-stack {
  display: grid;
  gap: 1.15rem;
}

.stat-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(1.2rem, 3vw, 1.6rem);
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
}

.stat-number {
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4.5vw, 2.9rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.stat-number .stat-unit {
  font-size: 0.5em;
}

.stat-label {
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.conclusion-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.15rem;
  margin-top: 1.15rem;
}

.conclusion-card h3 {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 1.05rem;
}

.conclusion-card h3 svg {
  flex: 0 0 auto;
  width: 1.15rem;
  height: 1.15rem;
  color: var(--gold-bright);
}

.scope-note {
  max-width: 52rem;
  margin: 1.5rem auto 0;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

/* ---------- Install ---------- */

.install-card + .install-card {
  margin-top: 1.15rem;
}

.install-card h2,
.install-card h3 {
  margin-bottom: 1rem;
  color: var(--text-strong);
}

.install-card p {
  color: var(--muted);
}

.terminal {
  overflow: hidden;
  background: var(--code-bg);
  border: 1px solid rgb(255 255 255 / 0.12);
  border-radius: var(--radius-sm);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid rgb(255 255 255 / 0.09);
}

.terminal-bar i {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
}

.terminal-bar i:nth-child(1) { background: #ff5f57; }
.terminal-bar i:nth-child(2) { background: #febc2e; }
.terminal-bar i:nth-child(3) { background: #28c840; }

.terminal-bar span {
  margin-left: 0.4rem;
  color: rgb(255 255 255 / 0.46);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.command-wrap {
  display: flex;
  gap: 0.65rem;
  align-items: stretch;
  padding: 0.9rem;
}

pre {
  flex: 1;
  max-width: 100%;
  margin: 0;
  padding: 0.35rem 0.2rem;
  overflow-x: auto;
  color: var(--code-text);
  font: 0.86rem/1.7 var(--font-mono);
}

pre code > span {
  display: block;
}

pre code > span::before {
  content: "$ ";
  color: var(--sky-bright);
  user-select: none;
}

.copy-button {
  flex: 0 0 auto;
  align-self: center;
  min-height: 2.7rem;
  padding: 0.6rem 1rem;
  color: #131a08;
  background: var(--gold-bright);
  border: 1px solid var(--gold-bright);
  border-radius: 0.55rem;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 800;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease;
}

.copy-button:hover {
  background: #ffd97e;
}

.copy-button:active {
  transform: scale(0.96);
}

.copy-status {
  min-height: 1.5rem;
  margin-top: 0.55rem;
  color: var(--muted);
  font-size: 0.85rem;
}

/* These controls depend on JavaScript handlers. The shell command remains selectable. */
:root:not(.js-ready) [data-theme-toggle],
:root:not(.js-ready) [data-copy-target] {
  display: none;
}

.side-note .check-list li {
  color: var(--hero-muted);
}

.side-note .check-list li strong {
  color: var(--hero-text);
}

/* ---------- Call-to-action band ---------- */

.cta-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem 2.5rem;
  padding: clamp(1.75rem, 4vw, 3rem);
  color: var(--hero-text);
  background:
    radial-gradient(ellipse 60% 90% at 92% 0%, rgb(99 201 242 / 0.16) 0%, transparent 70%),
    radial-gradient(ellipse 55% 90% at 5% 100%, rgb(242 186 66 / 0.14) 0%, transparent 70%),
    var(--hero-bg);
  border-radius: calc(var(--radius) + 0.4rem);
  box-shadow: var(--shadow-md);
}

.cta-band h2 {
  color: var(--hero-text);
}

.cta-band .eyebrow {
  color: var(--gold-bright);
}

.cta-band p:not(.eyebrow) {
  max-width: 34rem;
  margin-top: 0.6rem;
  color: var(--hero-muted);
}

/* ---------- Install page ---------- */

.install-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(16rem, 0.6fr);
  gap: 1.5rem 2.5rem;
  align-items: start;
}

.install-side {
  display: grid;
  gap: 1.15rem;
}

.prompt-box {
  margin-top: 0.85rem;
  padding: 0.9rem 1rem;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-style: italic;
}

/* ---------- Subpages (support / privacy / terms) ---------- */

.page-header {
  padding-block: clamp(3rem, 8vw, 5.5rem);
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
}

.page-header h1 {
  max-width: 20ch;
}

.page-lede {
  margin-top: 1rem;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(15rem, 0.5fr);
  gap: 1.5rem 3rem;
  align-items: start;
}

.prose > * + * {
  margin-top: 1.1rem;
}

.prose h2:not(:first-child) {
  margin-top: 2.75rem;
}

.prose h2 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
}

.prose ul,
.prose ol {
  padding-left: 1.3rem;
}

.prose li + li {
  margin-top: 0.5rem;
}

.side-note {
  position: sticky;
  top: 5.5rem;
  padding: 1.35rem;
  color: var(--hero-text);
  background:
    radial-gradient(ellipse 80% 60% at 90% 0%, rgb(99 201 242 / 0.16) 0%, transparent 70%),
    var(--hero-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.side-note h2 {
  color: var(--hero-text);
  font-size: 1.2rem;
}

.side-note p {
  margin-top: 0.7rem;
  color: var(--hero-muted);
  font-size: 0.94rem;
}

.side-note a {
  color: var(--sky-bright);
}

.issue-list {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.issue-list li {
  position: relative;
  padding-left: 1.3rem;
}

.issue-list li::before {
  position: absolute;
  left: 0;
  color: var(--gold-bright);
  content: "•";
  font-weight: 800;
}

.policy-card + .policy-card {
  margin-top: 1rem;
}

.policy-card h2 {
  font-size: 1.35rem;
}

.policy-card ul {
  padding-left: 1.25rem;
  margin: 0.75rem 0 0;
  color: var(--muted);
}

.policy-card li + li {
  margin-top: 0.5rem;
}

/* ---------- Documentation ---------- */

.docs-page-header h1 {
  max-width: 22ch;
}

.docs-layout {
  display: grid;
  grid-template-columns: minmax(13.5rem, 0.34fr) minmax(0, 1fr);
  gap: 2rem clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.docs-nav {
  position: sticky;
  top: 5.5rem;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.docs-nav-label {
  padding: 0.35rem 0.65rem 0.7rem;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.docs-nav ul {
  display: grid;
  gap: 0.18rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.docs-nav a {
  display: flex;
  align-items: center;
  min-height: 2.75rem;
  padding: 0.55rem 0.7rem;
  color: var(--muted);
  border-radius: 0.5rem;
  font-size: 0.92rem;
  font-weight: 650;
  line-height: 1.25;
  text-decoration: none;
}

.docs-nav a:hover,
.docs-nav a[aria-current="page"] {
  color: var(--text-strong);
  background: var(--surface-2);
}

.docs-nav a[aria-current="page"] {
  box-shadow: inset 0 0 0 1px var(--line-strong);
}

.doc-content {
  min-width: 0;
  max-width: 50rem;
}

.doc-content > * + * {
  margin-top: 1.25rem;
}

.doc-content section + section {
  padding-top: 2.75rem;
  margin-top: 2.75rem;
  border-top: 1px solid var(--line);
}

.doc-content h2 {
  font-size: clamp(1.55rem, 3vw, 2.1rem);
}

.doc-content h3 {
  margin-top: 1.75rem;
}

.doc-content p,
.doc-content li {
  color: var(--muted);
}

.doc-content strong {
  color: var(--text-strong);
}

.doc-content ul,
.doc-content ol {
  padding-left: 1.35rem;
}

.doc-content li + li {
  margin-top: 0.5rem;
}

.doc-content code,
.doc-content kbd {
  overflow-wrap: anywhere;
  color: var(--text-strong);
  font-family: var(--font-mono);
  font-size: 0.88em;
}

.doc-content :not(pre) > code {
  padding: 0.12rem 0.3rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 0.3rem;
}

.doc-content pre {
  padding: 1rem 1.1rem;
  color: var(--code-text);
  background: var(--code-bg);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
}

.doc-content pre code {
  color: inherit;
  overflow-wrap: normal;
}

.doc-content pre code > span::before {
  content: none;
}

.doc-callout {
  padding: 1rem 1.15rem;
  color: var(--muted);
  background: var(--gold-soft);
  border-left: 0.3rem solid var(--gold);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.doc-callout--important {
  background: var(--violet-soft);
  border-left-color: var(--violet);
}

.doc-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.doc-card {
  display: block;
  min-height: 100%;
  padding: 1.15rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.doc-card:hover {
  color: var(--text);
  border-color: var(--gold);
  box-shadow: var(--shadow-sm);
}

.doc-card strong {
  display: block;
  margin-bottom: 0.35rem;
}

.doc-card span {
  color: var(--muted);
}

.table-scroll {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.table-scroll table {
  width: 100%;
  min-width: 42rem;
  border-collapse: collapse;
  background: var(--surface);
}

.table-scroll th,
.table-scroll td {
  padding: 0.8rem 0.9rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.table-scroll th {
  color: var(--text-strong);
  background: var(--surface-2);
  font-size: 0.84rem;
}

.table-scroll tr:last-child td {
  border-bottom: 0;
}

.mode-contrast {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.mode-contrast > div {
  padding: 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.mode-contrast p {
  margin-top: 0.55rem;
}

/* ---------- Footer ---------- */

.site-footer {
  color: var(--hero-muted);
  background: var(--hero-bg);
  border-top: 1px solid rgb(255 255 255 / 0.08);
}

.site-footer .brand {
  color: var(--hero-text);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  padding-block: 2.25rem;
}

.footer-note {
  max-width: 42rem;
  margin-top: 0.75rem;
  font-size: 0.88rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-content: start;
  justify-content: flex-end;
  gap: 0.55rem 1.1rem;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: var(--hero-muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--gold-bright);
}

/* ---------- Scroll reveal (JS-gated) ---------- */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(1.4rem);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Responsive ---------- */

@media (max-width: 56rem) {
  .card-grid,
  .conclusion-grid,
  .pulsar-grid {
    grid-template-columns: 1fr 1fr;
  }

  .evidence-grid {
    grid-template-columns: 1fr;
  }

  .stat-stack {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 48rem) {
  .route-branches {
    grid-template-columns: 1fr;
  }

  .header-inner {
    row-gap: 0.35rem;
  }

  .brand-word em {
    display: none;
  }

  .site-nav {
    flex-basis: 100%;
    order: 3;
  }

  .site-nav ul {
    justify-content: flex-start;
  }

  .section-intro,
  .content-grid,
  .footer-inner,
  .hero-grid,
  .install-layout,
  .docs-layout {
    grid-template-columns: 1fr;
  }

  .docs-nav {
    position: static;
  }

  .docs-nav ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-grid {
    padding-block: 3.5rem;
  }

  .hero-orbit {
    max-width: 19rem;
  }

  .side-note {
    position: static;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 34rem) {
  .card-grid,
  .conclusion-grid,
  .pulsar-grid,
  .two-up,
  .stat-stack,
  .route-branches,
  .doc-card-grid,
  .mode-contrast,
  .docs-nav ul {
    grid-template-columns: 1fr;
  }

  .shell {
    width: min(var(--content), calc(100% - 1.5rem));
  }

  .site-nav ul {
    flex-wrap: wrap;
    gap: 0.1rem 0.15rem;
    overflow-x: visible;
  }

  .site-nav a {
    padding: 0.35rem 0.45rem;
    font-size: 0.88rem;
  }

  .star-button .star-label {
    display: none;
  }

  .star-button-part:last-child {
    padding-inline: 0.7rem;
  }

  .hero-badge {
    font-size: 0.68rem;
    letter-spacing: 0.03em;
  }

  .route-detail {
    padding-left: 1.2rem;
  }

  .chart-row {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .chart-row .chart-value {
    text-align: left;
  }

  .command-wrap {
    flex-direction: column;
  }

  .copy-button {
    width: 100%;
  }
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}