/* Byline — Dark editorial PR brand */

:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-2: #334155;
  --fg: #f1f5f9;
  --fg-muted: #94a3b8;
  --fg-faint: #64748b;
  --accent: #f59e0b;
  --accent-dim: rgba(245, 158, 11, 0.12);
  --border: rgba(148, 163, 184, 0.12);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-2); border-radius: 3px; }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 2rem;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.01em;
}

/* Hero */
.hero {
  padding: 6rem 2rem 5rem;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.hero-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(245, 158, 11, 0.2);
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 1.5rem;
  max-width: 700px;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 3.5rem;
}
.hero-agents {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 640px;
}
.agent-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
}
.agent-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-dim);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.agent-info { flex: 1; min-width: 0; }
.agent-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--fg);
  margin-bottom: 0.15rem;
}
.agent-desc {
  font-size: 0.78rem;
  color: var(--fg-muted);
}
.agent-status {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.6rem;
  border-radius: 100px;
  background: var(--surface-2);
  color: var(--fg-faint);
  flex-shrink: 0;
}
.agent-status.active {
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Section common */
.section-tag {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.section-header { margin-bottom: 3rem; }

/* Manifesto */
.manifesto {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 5rem 2rem;
}
.manifesto-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.manifesto-quote {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-style: italic;
  line-height: 1.4;
  color: var(--fg);
  border-left: 3px solid var(--accent);
  padding-left: 2rem;
}
.manifesto-body {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.8;
}

/* Features */
.features { padding: 6rem 2rem; }
.features-inner { max-width: 1100px; margin: 0 auto; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: border-color 0.2s, transform 0.2s;
}
.feature-card:hover {
  border-color: rgba(245, 158, 11, 0.25);
  transform: translateY(-2px);
}
.feature-icon {
  width: 52px;
  height: 52px;
  background: var(--accent-dim);
  border: 1px solid rgba(245, 158, 11, 0.15);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.feature-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 0.6rem;
  line-height: 1.3;
}
.feature-desc {
  font-size: 0.875rem;
  color: var(--fg-muted);
  line-height: 1.65;
}

/* How It Works */
.howitworks {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 6rem 2rem;
}
.howitworks-inner { max-width: 1100px; margin: 0 auto; }
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  margin-top: 0;
}
.step-num {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.25;
  line-height: 1;
  margin-bottom: 1.25rem;
}
.step-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 0.6rem;
}
.step-desc {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* Outcomes */
.outcomes { padding: 6rem 2rem; }
.outcomes-inner { max-width: 1100px; margin: 0 auto; }
.outcomes-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  margin-bottom: 2.5rem;
}
.outcome-stat { text-align: center; }
.outcome-number {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--fg);
  margin-bottom: 0.5rem;
}
.outcome-stat.accent .outcome-number { color: var(--accent); }
.outcome-label {
  font-size: 0.875rem;
  color: var(--fg-muted);
  max-width: 180px;
  margin: 0 auto;
  line-height: 1.5;
}
.outcomes-note {
  text-align: center;
  font-size: 0.95rem;
  color: var(--fg-muted);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Closing */
.closing {
  background: linear-gradient(135deg, var(--bg) 0%, #162032 100%);
  border-top: 1px solid var(--border);
  padding: 7rem 2rem;
  text-align: center;
}
.closing-inner { max-width: 800px; margin: 0 auto; }
.closing-headline {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--fg);
  margin-bottom: 1.25rem;
}
.closing-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 3rem;
}
.closing-vision {
  border-top: 1px solid var(--border);
  padding-top: 2.5rem;
}
.closing-vision p {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.8;
  margin-bottom: 1rem;
}
.closing-vision-emphasis {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--accent) !important;
}

/* Footer */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 3rem 2rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--fg);
  margin-bottom: 0.75rem;
}
.footer-tagline {
  font-size: 0.875rem;
  color: var(--fg-muted);
  margin-bottom: 1rem;
}
.footer-legal {
  font-size: 0.75rem;
  color: var(--fg-faint);
}

/* Responsive */
@media (max-width: 900px) {
  .manifesto-inner { grid-template-columns: 1fr; gap: 2rem; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .outcomes-grid { flex-direction: column; gap: 1.5rem; }
}
@media (max-width: 600px) {
  .hero { padding: 4rem 1.5rem 3rem; }
  .features { padding: 4rem 1.5rem; }
  .features-grid { grid-template-columns: 1fr; }
  .howitworks { padding: 4rem 1.5rem; }
  .outcomes { padding: 4rem 1.5rem; }
  .closing { padding: 5rem 1.5rem; }
  .manifesto { padding: 4rem 1.5rem; }
}