/* ═══════════════════════════════════════════
   OpenClaw Public Page — Stylesheet
   openclaw.legrin-tech.net  (pilot subdomain)
   ═══════════════════════════════════════════ */

/* SECTION: Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-bg: #0d0f14;
  --color-surface: #161a22;
  --color-surface-alt: #1c2130;
  --color-border: #2a3040;
  --color-text: #e8eaf0;
  --color-text-muted: #8892a4;
  --color-accent: #4f8ef7;
  --color-accent-hover: #6ba3ff;
  --color-green: #3ecf8e;
  --color-yellow: #f5a623;
  --color-blue-dim: #1e2d4a;
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 12px;
  --radius-sm: 8px;
  --max-width: 960px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  font-size: 16px;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); }

/* SECTION: Nav */
.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-badge {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
}

/* SECTION: Hero */
.site-header {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 4rem;
}

.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 1.5rem 2rem;
  text-align: center;
}

.hero-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-blue-dim);
  border: 1px solid var(--color-accent);
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero-title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

.hero-cta-row {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

/* SECTION: Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.15s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* SECTION: Screenshot Placeholders */
.screenshot-placeholder {
  background: var(--color-surface);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  color: var(--color-text-muted);
}

.hero-screenshot {
  max-width: 800px;
  margin: 0 auto;
}

.placeholder-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.placeholder-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.placeholder-spec {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-border);
  margin-top: 0.25rem;
}

/* SECTION: Scenarios */
#scenarios {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-intro {
  text-align: center;
  padding: 4rem 0 2rem;
}

.section-intro h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.section-intro p {
  color: var(--color-text-muted);
}

.scenario {
  padding: 3rem 0;
  border-top: 1px solid var(--color-border);
}

.scenario-alt {
  background: var(--color-surface);
  margin: 0 -1.5rem;
  padding: 3rem 1.5rem;
}

.scenario-header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.scenario-number {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-blue-dim);
  border: 1px solid var(--color-accent);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  margin-top: 0.3rem;
}

.scenario-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}

.scenario-tagline {
  color: var(--color-text-muted);
  font-size: 1rem;
}

.scenario-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

@media (max-width: 680px) {
  .scenario-body { grid-template-columns: 1fr; }
}

.scenario-story p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.capability-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.capability-list li {
  font-size: 0.95rem;
}

.badge-pilot {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--color-yellow);
  color: #000;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  vertical-align: middle;
  margin-left: 0.4rem;
}

/* SECTION: How It Works */
.how-it-works {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 4rem 1.5rem;
  text-align: center;
}

.how-it-works h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.section-sub {
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
}

.steps-row {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  max-width: var(--max-width);
  margin: 0 auto;
}

.step {
  flex: 1;
  min-width: 180px;
  max-width: 240px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
}

.step-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.step h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.step p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.step-arrow {
  font-size: 1.5rem;
  color: var(--color-border);
  align-self: center;
  padding-top: 0.5rem;
}

@media (max-width: 600px) {
  .step-arrow { display: none; }
}

/* SECTION: Capability Matrix */
.capability-matrix {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.capability-matrix h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  text-align: center;
}

.matrix-table-wrap {
  overflow-x: auto;
  margin-top: 2rem;
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.matrix-table th {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--color-border);
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.matrix-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

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

.status {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status.live {
  background: rgba(62, 207, 142, 0.15);
  color: var(--color-green);
  border: 1px solid rgba(62, 207, 142, 0.3);
}

.status.pilot {
  background: rgba(245, 166, 35, 0.15);
  color: var(--color-yellow);
  border: 1px solid rgba(245, 166, 35, 0.3);
}

.status.soon {
  background: var(--color-surface);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

/* SECTION: Contact */
.contact-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 5rem 1.5rem;
  text-align: center;
}

.contact-inner {
  max-width: 560px;
  margin: 0 auto;
}

.contact-inner h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.contact-inner p {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.contact-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* SECTION: Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.site-footer p + p { margin-top: 0.4rem; }

.footer-note {
  font-size: 0.78rem;
  color: var(--color-border);
}