/* ── Design tokens (matches usdxstable.com) ─────────────────── */
:root {
  --bg-100: #020810;
  --bg-200: #060D1A;
  --bg-card: #0D1D30;
  --bg-card-hover: #102238;
  --border-subtle: rgba(255,255,255,0.05);
  --border-default: rgba(255,255,255,0.09);
  --border-accent: rgba(37,99,235,0.35);

  --blue-400: #60A5FA;
  --blue-500: #3B82F6;
  --blue-600: #2563EB;
  --cyan-400: #22D3EE;
  --green-400: #4ADE80;
  --amber-400: #FBBF24;
  --red-400: #f87171;

  --text-primary: #F0F6FF;
  --text-secondary: #94A3B8;
  --text-muted: #4B6280;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --container: 1240px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --surface-1: rgba(13,29,48,0.82);
  --shadow-panel: 0 24px 64px rgba(0,0,0,0.28);
  --transition: 0.2s ease;
}

/* ── Reset ──────────────────────────────────────────────────── */
*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background:
    radial-gradient(circle at top left, rgba(37,99,235,0.14), transparent 28%),
    radial-gradient(circle at top right, rgba(34,211,238,0.1), transparent 24%),
    linear-gradient(180deg, #020810 0%, #050d18 38%, #020810 100%);
  color: var(--text-secondary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  position: relative;
}
a { color: var(--blue-400); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ─────────────────────────────────────────────────── */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ── Navbar ─────────────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 24px;
  transition: background var(--transition), border-color var(--transition);
}

.navbar.scrolled {
  background: rgba(2,8,16,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; }
.nav-logo-img { height: 36px; width: auto; display: block; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.nav-links a {
  display: block;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover { color: var(--text-primary); background: rgba(255,255,255,0.05); text-decoration: none; }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-hamburger {
  display: none;
  background: none; border: none; cursor: pointer;
  padding: 8px; color: var(--text-secondary);
  flex-direction: column;
}
.nav-hamburger span {
  display: block; width: 24px; height: 2px;
  background: currentColor; border-radius: 2px; transition: all 0.3s;
}
.nav-hamburger span + span { margin-top: 5px; }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 20px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 600; transition: all var(--transition);
  border: none; cursor: pointer; text-decoration: none !important;
}
.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border-default); }
.btn-ghost:hover { background: rgba(255,255,255,0.05); color: var(--text-primary); }
.btn-sm { padding: 7px 14px; font-size: 13px; }

/* ── Badge ───────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 14px; border-radius: 999px; font-size: 12px;
  font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 20px;
}
.badge-blue { background: rgba(37,99,235,0.15); border: 1px solid rgba(37,99,235,0.3); color: var(--blue-400); }
.badge-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--blue-400);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }

/* ── Gradient text ───────────────────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, var(--blue-400), var(--cyan-400));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

/* ── Status chips ─────────────────────────────────────────────── */
.status-chip {
  display: inline-flex; align-items: center; gap: 6px;
  min-height: 30px; padding: 5px 12px; border-radius: 999px;
  border: 1px solid var(--border-default); font-size: 11px;
  font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  white-space: nowrap; flex-shrink: 0;
}
.tone-ok      { color:var(--green-400); border-color:rgba(74,222,128,0.22); background:rgba(74,222,128,0.1); }
.tone-warning { color:var(--amber-400); border-color:rgba(251,191,36,0.22); background:rgba(251,191,36,0.08); }
.tone-danger  { color:var(--red-400);   border-color:rgba(248,113,113,0.22);background:rgba(248,113,113,0.08); }
.tone-neutral { color:var(--blue-400);  border-color:rgba(37,99,235,0.24);  background:rgba(37,99,235,0.08); }

/* ── Page hero ───────────────────────────────────────────────── */
.page-hero { position: relative; padding: 80px 0 64px; z-index: 1; }
.page-hero .container { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }

.page-bg {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 600px;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.page-bg-glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(80px);
  opacity: 0.5;
}
.page-bg-glow-1 {
  width: 320px; height: 320px;
  background: rgba(37,99,235,0.22);
  top: -60px; left: -80px;
}
.page-bg-glow-2 {
  width: 300px; height: 300px;
  background: rgba(34,211,238,0.18);
  top: 90px; right: -60px;
}
.page-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.9) 0%, transparent 88%);
}

.page-title {
  font-size: clamp(36px, 5vw, 60px); font-weight: 900;
  line-height: 1.05; letter-spacing: -0.04em; color: var(--text-primary); margin-bottom: 16px;
}
.page-subtitle { font-size: 16px; color: var(--text-secondary); line-height: 1.75; max-width: 480px; }

.hero-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.metric-card {
  background: var(--surface-1); border: 1px solid var(--border-default);
  border-radius: var(--radius-md); padding: 18px;
}
.metric-label { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 8px; }
.metric-value { font-size: 22px; font-weight: 800; color: var(--text-primary); letter-spacing: -0.02em; line-height: 1.1; }
.metric-mono  { font-family: var(--font-mono); font-size: 14px; }
.metric-desc  { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* ── Content area ────────────────────────────────────────────── */
.content-area { padding: 0 0 80px; position: relative; z-index: 1; }

/* ── Banner ──────────────────────────────────────────────────── */
.banner {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 16px; padding: 16px 20px; border-radius: var(--radius-md);
  border: 1px solid var(--border-default); background: var(--surface-1);
  margin-bottom: 28px; font-size: 14px;
}
.banner strong { color: var(--text-primary); display: block; margin-bottom: 2px; }
.banner p { color: var(--text-secondary); font-size: 13px; }
.banner-ok      { background:rgba(34,197,94,0.08);   border-color:rgba(34,197,94,0.2); }
.banner-warning { background:rgba(251,191,36,0.08);  border-color:rgba(251,191,36,0.2); }
.banner-danger  { background:rgba(248,113,113,0.08); border-color:rgba(248,113,113,0.2); }
.banner-neutral { background:rgba(37,99,235,0.08);   border-color:rgba(37,99,235,0.2); }
.banner-api {
  font-family: var(--font-mono); font-size: 12px; color: var(--blue-400);
  background: rgba(37,99,235,0.1); border: 1px solid rgba(37,99,235,0.2);
  padding: 4px 10px; border-radius: 6px; white-space: nowrap; flex-shrink: 0; align-self: center;
}

/* ── Panel grid ──────────────────────────────────────────────── */
.panel-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.panel-grid-wide { grid-template-columns: 1.4fr 0.6fr; }

/* ── Panel ───────────────────────────────────────────────────── */
.panel {
  background: var(--surface-1); border: 1px solid var(--border-default);
  border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-panel);
}
.panel-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 20px; }
.panel-kicker { font-family: var(--font-mono); font-size: 11px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--blue-400); margin-bottom: 4px; }
.panel h2 { font-size: 18px; font-weight: 700; color: var(--text-primary); letter-spacing: -0.02em; margin-bottom: 4px; }
.panel-intro { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }

/* ── Value row ───────────────────────────────────────────────── */
.value-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
.value-card { background: rgba(255,255,255,0.03); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 16px; }
.value-label { font-size: 11px; font-weight: 600; letter-spacing: 0.07em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 8px; }
.value-figure { font-size: clamp(18px,2vw,26px); font-weight: 800; color: var(--text-primary); letter-spacing: -0.02em; line-height: 1.1; }
.value-meta { font-size: 12px; color: var(--text-secondary); margin-top: 4px; line-height: 1.5; }

/* ── Table ───────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 360px; }
th { padding: 10px 14px; text-align: left; font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); border-bottom: 1px solid var(--border-default); background: rgba(255,255,255,0.02); white-space: nowrap; }
td { padding: 12px 14px; border-bottom: 1px solid var(--border-subtle); font-size: 13px; color: var(--text-secondary); vertical-align: top; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }
td:first-child { color: var(--text-primary); font-weight: 600; }
.td-loading { text-align: center; padding: 24px; color: var(--text-muted); font-style: italic; }
.td-mono { font-family: var(--font-mono); font-size: 12px; color: var(--blue-400); }

/* ── Components grid ─────────────────────────────────────────── */
.components-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 16px; }
.component-pill {
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  padding: 8px 12px; border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.03); border: 1px solid var(--border-subtle); font-size: 12px;
}
.component-pill span { color: var(--text-secondary); }
.component-pill strong { font-size: 11px; font-weight: 700; letter-spacing: 0.05em; }

/* ── Issues ──────────────────────────────────────────────────── */
.issues-box { margin-top: 8px; }
.issues-label { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 8px; }
.issues-list { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.issue-item { font-size: 13px; color: var(--text-secondary); padding: 6px 10px; border-radius: var(--radius-sm); background: rgba(255,255,255,0.02); border-left: 2px solid var(--border-default); }
.issue-item.muted { color: var(--text-muted); border-left-color: var(--border-subtle); }
.issue-item.ok    { border-left-color: var(--green-400); color: var(--green-400); }

/* ── Proof list ──────────────────────────────────────────────── */
.proof-list { display: flex; flex-direction: column; gap: 0; }
.proof-row { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--border-subtle); }
.proof-row:last-child { border-bottom: none; }
.proof-row dt { font-size: 12px; font-weight: 600; letter-spacing: 0.04em; color: var(--text-muted); white-space: nowrap; flex-shrink: 0; padding-top: 1px; }
.proof-row dd { font-size: 13px; color: var(--text-primary); text-align: right; word-break: break-all; }
.dd-mono { font-family: var(--font-mono); font-size: 11px; color: var(--blue-400); }

.proof-links { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; }
.proof-link-row { display: flex; align-items: center; gap: 10px; padding: 8px 10px; background: rgba(255,255,255,0.02); border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); }
.proof-link-label { font-size: 11px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); flex-shrink: 0; min-width: 80px; }
.proof-link-row a { font-family: var(--font-mono); font-size: 11px; color: var(--blue-400); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Endpoint list ───────────────────────────────────────────── */
.endpoint-list { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.endpoint-item { display: flex; align-items: center; gap: 10px; padding: 10px 12px; background: rgba(255,255,255,0.02); border: 1px solid var(--border-subtle); border-radius: var(--radius-sm); }
.method-badge { font-size: 10px; font-weight: 700; letter-spacing: 0.08em; background: rgba(37,99,235,0.15); color: var(--blue-400); border: 1px solid rgba(37,99,235,0.25); padding: 3px 7px; border-radius: 4px; flex-shrink: 0; }
.endpoint-path { font-family: var(--font-mono); font-size: 13px; color: var(--text-primary); flex-shrink: 0; }
.endpoint-desc { font-size: 12px; color: var(--text-muted); margin-left: auto; text-align: right; }
.api-links { display: flex; gap: 8px; flex-wrap: wrap; }

/* ── Footer ──────────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--border-subtle); padding: 24px 0; }
.footer-inner { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; font-size: 13px; }
.footer-brand { color: var(--text-primary); font-weight: 600; }
.footer-sep   { color: var(--text-muted); }
.footer-muted { color: var(--text-muted); margin-left: auto; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 960px) {
  .page-hero .container { grid-template-columns: 1fr; gap: 32px; }
  .panel-grid           { grid-template-columns: 1fr; }
  .panel-grid-wide      { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
}
@media (max-width: 640px) {
  .hero-metrics { grid-template-columns: 1fr; }
  .value-row { grid-template-columns: 1fr; }
  .components-grid { grid-template-columns: 1fr; }
  .footer-muted { display: none; }
}