:root {
  /* Dusk surfaces (never true #000) */
  --bg-900: hsl(244, 30%, 7%);
  --bg-850: hsl(244, 27%, 10%);
  --bg-800: hsl(244, 24%, 13%);
  --bg-700: hsl(244, 21%, 17%);

  /* Neutrals */
  --text-100: hsl(38, 33%, 94%);
  --text-200: hsl(240, 16%, 78%);
  --text-300: hsl(240, 13%, 62%);
  --text-400: hsl(240, 11%, 48%);

  /* Borders */
  --border-subtle: hsla(244, 26%, 68%, 0.14);
  --border-strong: hsla(244, 26%, 74%, 0.28);

  /* Brand & semantic accents */
  --coral-500: hsl(338, 86%, 62%);
  --coral-400: hsl(338, 90%, 70%);
  --coral-100: hsla(338, 86%, 62%, 0.14);

  --cyan-500: hsl(182, 76%, 52%);
  --cyan-400: hsl(182, 82%, 66%);
  --cyan-100: hsla(182, 76%, 52%, 0.13);

  --amber-500: hsl(36, 92%, 62%);
  --amber-400: hsl(38, 94%, 72%);
  --amber-100: hsla(36, 92%, 62%, 0.14);

  --violet-400: hsl(265, 80%, 74%);
  --violet-100: hsla(265, 80%, 74%, 0.14);

  --slate-400: hsl(224, 15%, 70%);
  --slate-100: hsla(224, 15%, 70%, 0.12);

  /* Spacing & radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px hsla(0, 0%, 0%, 0.28);
  --shadow-md: 0 8px 24px hsla(0, 0%, 0%, 0.36);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background-color: var(--bg-900);
  background-image:
    radial-gradient(900px 480px at 88% -80px, hsla(338, 86%, 62%, 0.16), transparent 60%),
    radial-gradient(760px 420px at 8% 12%, hsla(182, 76%, 52%, 0.11), transparent 60%);
  color: var(--text-100);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--cyan-500);
  outline-offset: 2px;
}

.tabular {
  font-variant-numeric: tabular-nums;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
}

/* Top Navigation */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: hsla(244, 30%, 7%, 0.84);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--coral-500), var(--amber-500) 58%, var(--cyan-500));
  color: var(--bg-900);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: -0.02em;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand-sub {
  font-size: 12px;
  color: var(--text-300);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-links::-webkit-scrollbar {
  display: none;
}

.nav-links a {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-200);
  white-space: nowrap;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.nav-links a:hover {
  color: var(--text-100);
  background: hsla(244, 24%, 24%, 0.5);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-strong);
  background: var(--bg-800);
  color: var(--text-100);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.lang-toggle:hover {
  border-color: var(--cyan-500);
  background: var(--bg-700);
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }
}

/* Mobile Quick Nav */
.mobile-nav {
  display: none;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-850);
}

.mobile-nav-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 10px 16px;
  scrollbar-width: none;
}

.mobile-nav-inner::-webkit-scrollbar {
  display: none;
}

.mobile-nav a {
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: var(--bg-800);
  border: 1px solid var(--border-subtle);
  font-size: 13px;
  color: var(--text-200);
  white-space: nowrap;
}

@media (max-width: 900px) {
  .mobile-nav {
    display: block;
  }
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  border: 1px solid transparent;
}

.badge-verified {
  color: var(--cyan-400);
  background: var(--cyan-100);
  border-color: hsla(182, 76%, 52%, 0.28);
}

.badge-rumor {
  color: var(--amber-400);
  background: var(--amber-100);
  border-color: hsla(36, 92%, 62%, 0.34);
}

.badge-estimate {
  color: var(--violet-400);
  background: var(--violet-100);
  border-color: hsla(265, 80%, 74%, 0.32);
}

.badge-unannounced {
  color: var(--slate-400);
  background: var(--slate-100);
  border-color: hsla(224, 15%, 70%, 0.24);
}

.badge-wave2 {
  color: var(--coral-400);
  background: var(--coral-100);
  border-color: hsla(338, 86%, 62%, 0.32);
}

/* Hero */
.hero {
  padding: 56px 0 40px;
}

.hero-eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.hero-kicker {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-300);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.hero-accent {
  background: linear-gradient(100deg, var(--coral-400), var(--amber-400) 52%, var(--cyan-400));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  margin: 0 0 28px;
  max-width: 62ch;
  font-size: 18px;
  color: var(--text-200);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.12s ease, background-color 0.15s ease, border-color 0.15s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--coral-500);
  color: hsl(0, 0%, 100%);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: hsl(338, 86%, 56%);
}

.btn-secondary {
  background: var(--bg-800);
  color: var(--text-100);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background: var(--bg-700);
  border-color: var(--cyan-500);
}

/* 4-tile launch strip */
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

@media (max-width: 960px) {
  .timeline-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .timeline-grid {
    grid-template-columns: 1fr;
  }
}

.tile {
  background: var(--bg-800);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tile-highlight {
  border-color: hsla(338, 86%, 62%, 0.42);
  background: linear-gradient(180deg, hsla(338, 86%, 62%, 0.08), var(--bg-800) 65%);
}

.tile-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.tile-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-300);
}

.tile-value {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-100);
}

.tile-meta {
  font-size: 13px;
  color: var(--text-200);
}

/* Sections */
.section {
  padding: 56px 0 0;
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.section-kicker {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan-400);
  margin-bottom: 6px;
}

.section-title {
  margin: 0;
  font-size: clamp(24px, 3vw, 30px);
  line-height: 1.25;
  font-weight: 700;
}

.section-desc {
  margin: 6px 0 0;
  max-width: 60ch;
  font-size: 15px;
  color: var(--text-200);
}

/* Segmented Controls */
.segmented {
  display: inline-flex;
  padding: 4px;
  border-radius: var(--radius-md);
  background: var(--bg-850);
  border: 1px solid var(--border-subtle);
}

.segmented button {
  padding: 7px 14px;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-300);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.segmented button[aria-pressed="true"] {
  background: var(--bg-700);
  color: var(--text-100);
}

/* Cards & Grids */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 820px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--bg-800);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card-featured {
  border-color: hsla(182, 76%, 52%, 0.42);
  background: linear-gradient(180deg, hsla(182, 76%, 52%, 0.07), var(--bg-800) 52%);
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.card-title {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
}

.card-subtitle {
  margin: 4px 0 0;
  font-size: 14px;
  color: var(--text-300);
}

.price-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.price-main {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-100);
}

.price-alt {
  font-size: 14px;
  color: var(--text-300);
}

.list-clean {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.list-clean li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--text-200);
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan-500);
  margin-top: 9px;
  flex-shrink: 0;
}

.dot-coral {
  background: var(--coral-500);
}

.dot-amber {
  background: var(--amber-500);
}

/* Callout Banner */
.callout {
  margin-top: 20px;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  background: var(--bg-850);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--amber-500);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.callout-cyan {
  border-left-color: var(--cyan-500);
}

.callout-coral {
  border-left-color: var(--coral-500);
}

.callout-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-100);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.callout p {
  margin: 0;
  font-size: 14px;
  color: var(--text-200);
  max-width: 72ch;
}

/* Table */
.table-wrap {
  margin-top: 20px;
  background: var(--bg-800);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  text-align: left;
}

th,
td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}

th {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-300);
  background: var(--bg-850);
}

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

td strong {
  color: var(--text-100);
}

/* Tags & Chips */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-850);
  border: 1px solid var(--border-subtle);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-100);
}

.chip-sub {
  font-size: 12px;
  color: var(--text-300);
}

/* Interactive Preload Checklist */
.checklist {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-850);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.check-item:hover {
  border-color: var(--border-strong);
}

.check-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--cyan-500);
  cursor: pointer;
  flex-shrink: 0;
}

.check-item.is-done span {
  color: var(--text-300);
  text-decoration: line-through;
}

/* Traversal Stat Bars (Fan Estimate) */
.stat-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.stat-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-row-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 14px;
}

.bar-track {
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--bg-900);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--violet-400), var(--coral-400));
}

/* Score Slot */
.score-box {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--bg-850);
  border: 1px dashed var(--border-strong);
}

.score-placeholder {
  width: 76px;
  height: 76px;
  border-radius: var(--radius-md);
  background: var(--bg-900);
  border: 1px solid var(--border-strong);
  display: grid;
  place-items: center;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-300);
  flex-shrink: 0;
}

/* Footer */
.footer {
  margin-top: 72px;
  padding: 36px 0 48px;
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-850);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
}

@media (max-width: 760px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer h3 {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 700;
}

.footer p {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--text-300);
  max-width: 70ch;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  color: var(--text-200);
}

.footer-links a:hover {
  color: var(--cyan-400);
}