/* K0 Protocol Launch Site — v0.02 (Launch Document) */
@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap");

:root {
  --bg: #f6f7fb;
  --bg-elevated: #ffffff;
  --fg: #0b0f1a;
  --muted: rgba(11, 15, 26, 0.64);
  --faint: rgba(11, 15, 26, 0.08);
  --border: rgba(11, 15, 26, 0.1);
  --glass: rgba(255, 255, 255, 0.72);
  --card: rgba(255, 255, 255, 0.78);
  --accent: #2563eb;
  --accent-2: #0d9488;
  --accent-soft: rgba(37, 99, 235, 0.12);
  --accent-2-soft: rgba(13, 148, 136, 0.12);
  --cta-bg: #0b0f1a;
  --cta-fg: #ffffff;
  --success: #059669;
  --warning: #d97706;
  --danger: #dc2626;
  --grid: rgba(37, 99, 235, 0.06);
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
  --radius: 16px;
  --radius-sm: 12px;
  --max: 1120px;
  --header-h: 72px;
}

html[data-theme="dark"] {
  --bg: #06080f;
  --bg-elevated: #0d1220;
  --fg: #f3f5f9;
  --muted: rgba(243, 245, 249, 0.68);
  --faint: rgba(243, 245, 249, 0.08);
  --border: rgba(243, 245, 249, 0.12);
  --glass: rgba(8, 12, 22, 0.72);
  --card: rgba(16, 22, 38, 0.82);
  --accent: #60a5fa;
  --accent-2: #2dd4bf;
  --accent-soft: rgba(96, 165, 250, 0.14);
  --accent-2-soft: rgba(45, 212, 191, 0.12);
  --cta-bg: #f3f5f9;
  --cta-fg: #06080f;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --grid: rgba(96, 165, 250, 0.05);
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.45);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--fg);
  font-family: "Manrope", "Avenir Next", "Segoe UI", sans-serif;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(37, 99, 235, 0.18), transparent 50%),
    radial-gradient(ellipse 60% 40% at 90% 10%, rgba(13, 148, 136, 0.14), transparent 45%),
    radial-gradient(ellipse 50% 30% at 50% 100%, rgba(37, 99, 235, 0.08), transparent 50%),
    var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black, transparent);
}

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

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

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

/* Layout */

.page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

.container {
  width: min(100% - 40px, var(--max));
  margin-inline: auto;
}

.section {
  padding: 88px 0;
}

.section-sm {
  padding: 56px 0;
}

.section-title {
  margin: 0 0 12px;
  font-size: clamp(1.75rem, 3.2vw, 2.4rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  font-weight: 800;
}

.section-lead {
  margin: 0 0 36px;
  max-width: 640px;
  color: var(--muted);
  font-size: 1.05rem;
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 36px;
}

.section-header .section-lead {
  margin-bottom: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 0 rgba(13, 148, 136, 0.5);
  animation: pulse 2s ease-out infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(13, 148, 136, 0.45);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(13, 148, 136, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(13, 148, 136, 0);
  }
}

/* Header */

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.85rem;
  font-weight: 700;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.28);
}

.brand-text {
  font-size: 1.05rem;
}

.brand-text span {
  color: var(--muted);
  font-weight: 600;
  margin-left: 6px;
  font-size: 0.85rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav a {
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--muted);
  transition: color 0.15s, background 0.15s;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--fg);
  background: var(--faint);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform 0.15s, border-color 0.15s;
}

.icon-btn:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

.icon-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
}

.menu-toggle {
  display: none;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.15s, background 0.15s, border-color 0.15s, box-shadow 0.15s;
  white-space: nowrap;
}

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

.btn-primary {
  background: var(--cta-bg);
  color: var(--cta-fg);
  box-shadow: 0 10px 24px rgba(11, 15, 26, 0.16);
}

.btn-primary:hover {
  box-shadow: 0 14px 28px rgba(11, 15, 26, 0.22);
}

.btn-secondary {
  background: var(--card);
  border-color: var(--border);
  color: var(--fg);
}

.btn-secondary:hover {
  border-color: var(--accent);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--fg);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent), #1d4ed8);
  color: #fff;
  border: none;
  box-shadow: 0 10px 28px rgba(37, 99, 235, 0.28);
}

html[data-theme="dark"] .btn-accent {
  background: linear-gradient(135deg, #3b82f6, #0d9488);
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Hero */

.hero {
  padding: 72px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(2.4rem, 5vw, 3.75rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  font-weight: 800;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  margin: 0 0 28px;
  max-width: 540px;
  font-size: 1.12rem;
  color: var(--muted);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
}

.chip strong {
  color: var(--fg);
  font-weight: 700;
}

.chip.live strong {
  color: var(--success);
}

/* Status card */

.status-panel {
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  background: var(--card);
  box-shadow: var(--shadow);
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.status-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--faint);
}

.status-panel-header h2 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge-live {
  background: rgba(5, 150, 105, 0.12);
  color: var(--success);
}

.badge-phase {
  background: var(--accent-soft);
  color: var(--accent);
}

.status-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
}

.metric {
  padding: 18px;
  background: var(--bg-elevated);
}

.metric-label {
  margin: 0 0 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.metric-value {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-family: "JetBrains Mono", monospace;
}

.metric-value small {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  font-family: "Manrope", sans-serif;
  margin-left: 4px;
}

.status-list {
  list-style: none;
  margin: 0;
  padding: 8px 0;
}

.status-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 18px;
  font-size: 0.9rem;
  border-top: 1px solid var(--faint);
}

.status-list li:first-child {
  border-top: none;
}

.status-dot {
  width: 8px;
  height: 8px;
  margin-top: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--success);
}

.status-dot.partial {
  background: var(--warning);
}

/* Cards & grids */

.glass {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
}

.card {
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset;
  transition: transform 0.18s, border-color 0.18s, box-shadow 0.18s;
}

.card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
  box-shadow: var(--shadow);
}

.card-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.25rem;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

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

/* Pillars */

.pillar-num {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 12px;
}

/* Flow steps */

.flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  counter-reset: step;
}

.flow-step {
  position: relative;
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
}

.flow-step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  margin-bottom: 12px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
}

.flow-step h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.flow-step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

/* Tables */

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  background: var(--faint);
  font-weight: 700;
}

tr:last-child td {
  border-bottom: none;
}

td strong {
  font-weight: 700;
}

.status-pill {
  display: inline-flex;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  background: rgba(5, 150, 105, 0.12);
  color: var(--success);
}

.status-pill.dry {
  background: rgba(217, 119, 6, 0.12);
  color: var(--warning);
}

/* Code */

code,
.mono {
  font-family: "JetBrains Mono", ui-monospace, monospace;
}

code {
  font-size: 0.86em;
  padding: 2px 6px;
  border-radius: 6px;
  background: var(--faint);
}

.pre-block {
  margin: 0;
  padding: 18px;
  border-radius: var(--radius-sm);
  background: #0b1020;
  color: #e2e8f0;
  overflow-x: auto;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
  line-height: 1.65;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

html[data-theme="light"] .pre-block {
  background: #0f172a;
}

.pre-block .comment {
  color: #64748b;
}

.pre-block .cmd {
  color: #7dd3fc;
}

/* Compare */

.compare-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.compare-card {
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
}

.compare-card.featured {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 25%, transparent), var(--shadow);
  background:
    linear-gradient(180deg, var(--accent-soft), transparent 48%),
    var(--card);
}

.compare-card h3 {
  margin: 0 0 6px;
  font-size: 1.1rem;
}

.compare-card .fee {
  margin: 0 0 16px;
  font-family: "JetBrains Mono", monospace;
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.compare-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.compare-card li {
  position: relative;
  padding: 7px 0 7px 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.compare-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-2);
}

/* Roadmap */

.timeline {
  position: relative;
  display: grid;
  gap: 16px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(var(--accent), var(--accent-2));
  opacity: 0.35;
}

.timeline-item {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 16px;
  align-items: start;
}

.timeline-dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--bg);
  border: 2px solid var(--accent);
  z-index: 1;
}

.timeline-dot.now {
  background: var(--accent);
  box-shadow: 0 0 0 6px var(--accent-soft);
}

.timeline-dot.now::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fff;
}

.timeline-body {
  padding: 18px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
}

.timeline-body h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.timeline-body p {
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.timeline-meta {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
}

/* Community / form */

.cta-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  padding: 36px;
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid var(--border);
  background:
    linear-gradient(135deg, var(--accent-soft), transparent 40%),
    linear-gradient(225deg, var(--accent-2-soft), transparent 45%),
    var(--card);
  box-shadow: var(--shadow);
}

.cta-panel h2 {
  margin: 0 0 12px;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -0.03em;
}

.cta-panel p {
  margin: 0 0 18px;
  color: var(--muted);
}

.channels {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.channel {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  font-weight: 600;
  font-size: 0.9rem;
  transition: border-color 0.15s, transform 0.15s;
}

.channel:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.form-card {
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
}

.form-card h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.form-card > p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.9rem;
}

.field {
  margin-bottom: 14px;
}

.field label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
}

.field input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-note {
  margin: 12px 0 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.form-success {
  display: none;
  padding: 14px;
  border-radius: 10px;
  background: rgba(5, 150, 105, 0.12);
  color: var(--success);
  font-weight: 600;
  font-size: 0.92rem;
}

.form-success.show {
  display: block;
}

/* FAQ */

.faq {
  display: grid;
  gap: 10px;
}

.faq details {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  padding: 4px 18px;
}

.faq summary {
  cursor: pointer;
  padding: 14px 0;
  font-weight: 700;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

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

.faq summary::after {
  content: "+";
  font-family: "JetBrains Mono", monospace;
  color: var(--muted);
  font-size: 1.2rem;
}

.faq details[open] summary::after {
  content: "−";
}

.faq details p {
  margin: 0 0 16px;
  color: var(--muted);
  max-width: 720px;
}

/* Architecture diagram */

.arch-stack {
  display: grid;
  gap: 10px;
}

.arch-layer {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--card);
}

.arch-layer strong {
  font-size: 0.88rem;
  letter-spacing: -0.01em;
}

.arch-layer span {
  color: var(--muted);
  font-size: 0.9rem;
}

.arch-layer:nth-child(1) {
  border-left: 3px solid var(--accent);
}
.arch-layer:nth-child(2) {
  border-left: 3px solid #6366f1;
}
.arch-layer:nth-child(3) {
  border-left: 3px solid var(--accent-2);
}
.arch-layer:nth-child(4) {
  border-left: 3px solid #a855f7;
}
.arch-layer:nth-child(5) {
  border-left: 3px solid #f59e0b;
}

/* API groups */

.api-group {
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
}

.api-group h3 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.api-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.api-list li {
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--faint);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  font-weight: 500;
}

/* Footer */

.site-footer {
  margin-top: 40px;
  border-top: 1px solid var(--border);
  padding: 40px 0 28px;
  background: color-mix(in srgb, var(--bg-elevated) 70%, transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 32px;
}

.footer-brand {
  font-weight: 800;
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.footer-brand + p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 280px;
}

.footer-col h4 {
  margin: 0 0 12px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.footer-col a {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
}

.footer-col a:hover {
  color: var(--fg);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.82rem;
}

/* Page hero (inner pages) */

.page-hero {
  padding: 56px 0 24px;
}

.page-hero h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 2.8rem);
  letter-spacing: -0.035em;
}

.page-hero p {
  margin: 0;
  max-width: 640px;
  color: var(--muted);
  font-size: 1.08rem;
}

/* Utilities */

.muted {
  color: var(--muted);
}

.text-center {
  text-align: center;
}

.mt-0 {
  margin-top: 0;
}

.mb-0 {
  margin-bottom: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Mobile */

@media (max-width: 960px) {
  .hero-grid,
  .cta-panel,
  .grid-3,
  .grid-4,
  .flow,
  .compare-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .arch-layer {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .nav {
    display: none;
  }

  .menu-toggle {
    display: grid;
  }

  .nav.open {
    display: flex;
    position: absolute;
    top: calc(var(--header-h) + 1px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 18px;
    background: var(--glass);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(14px);
  }

  .nav.open a {
    padding: 12px 14px;
  }

  .header-inner {
    position: relative;
  }

  .status-metrics {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 28px, var(--max));
  }

  .section {
    padding: 64px 0;
  }

  .hero {
    padding-top: 40px;
  }

  .cta-panel {
    padding: 24px;
  }

  .brand-text span {
    display: none;
  }

  .status-metrics {
    grid-template-columns: 1fr;
  }
}