/* Common CSS styles shared across all pages */
:root {
  --pico-font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, sans-serif;
  --pico-font-size: 15px;
  --pico-background-color: #0b0f17;
  --pico-card-background-color: #111827;
  --pico-color: #f1f5f9;
  --pico-muted-color: #94a3b8;
  --pico-border-color: rgba(255, 255, 255, 0.08);
  --pico-primary: #3b82f6;
  --pico-primary-hover: #60a5fa;
  --pico-border-radius: 10px;
}

body {
  background: radial-gradient(circle at 50% 0%, #172033 0%, #0b0f17 75%);
  min-height: 100vh;
  color: var(--pico-color);
  line-height: 1.65;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(11, 15, 23, 0.88);
  border-bottom: 1px solid var(--pico-border-color);
  padding: 0.75rem 0;
  margin-bottom: 2rem;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.brand-title {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: #fff;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-size: 0.82rem;
  font-weight: 500;
  color: #94a3b8;
  text-decoration: none;
  padding: 0.35rem 0.65rem;
  border-radius: 6px;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}
.nav-link:hover {
  color: #f8fafc;
  background: rgba(255, 255, 255, 0.05);
}
.nav-link.active {
  color: #60a5fa;
  background: rgba(59, 130, 246, 0.12);
  border-color: rgba(59, 130, 246, 0.3);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.6rem;
  border-radius: 9999px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.badge-success { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-info    { background: rgba(59, 130, 246, 0.15); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.3); }
.badge-purple  { background: rgba(168, 85, 247, 0.15); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
.badge-danger  { background: rgba(239, 68, 68, 0.15); color: #f87171; border: 1px solid rgba(239, 68, 68, 0.3); }

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.metric-card {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-border-color);
  border-radius: var(--pico-border-radius);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transition: all 0.2s ease-in-out;
}
.metric-card:hover {
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-2px);
}
.metric-label {
  font-size: 0.75rem;
  color: var(--pico-muted-color);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.metric-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: #fff;
  font-feature-settings: 'tnum';
}
.metric-subtext {
  font-size: 0.8rem;
  color: #64748b;
}

.solution-card {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-border-color);
  border-radius: var(--pico-border-radius);
  padding: 1.75rem;
  margin-bottom: 2rem;
  transition: border-color 0.2s;
}
.solution-card:hover {
  border-color: rgba(255, 255, 255, 0.18);
}

.section-header {
  margin: 2.5rem 0 1.25rem 0;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px solid var(--pico-border-color);
  padding-bottom: 0.5rem;
}
.section-header h2 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  color: #f8fafc;
}

figure {
  margin: 1.5rem 0;
  overflow-x: auto;
  border: 1px solid var(--pico-border-color);
  border-radius: var(--pico-border-radius);
  background: #0d131f;
}
table {
  font-size: 0.88rem;
  border-collapse: collapse;
  width: 100%;
  margin: 0;
}
th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #94a3b8;
  background: #111827;
  border-bottom: 1px solid var(--pico-border-color);
  padding: 0.85rem 1rem;
}
td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: #e2e8f0;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background-color: rgba(255, 255, 255, 0.02); }

pre, code {
  font-family: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
  font-size: 0.84rem;
}
pre {
  background: #080c14 !important;
  border: 1px solid var(--pico-border-color);
  border-radius: var(--pico-border-radius);
  padding: 1.15rem;
  position: relative;
  overflow-x: auto;
}

.mermaid {
  background: #080c14;
  border: 1px solid var(--pico-border-color);
  border-radius: var(--pico-border-radius);
  padding: 1.5rem;
  margin: 1.5rem 0;
  display: flex;
  justify-content: center;
}

details {
  background: #0d131f;
  border: 1px solid var(--pico-border-color);
  border-radius: var(--pico-border-radius);
  margin-bottom: 1rem;
  padding: 0.85rem 1.15rem;
}
details summary {
  font-weight: 600;
  color: #e2e8f0;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
details[open] summary {
  margin-bottom: 0.75rem;
  color: #60a5fa;
}

.callout {
  padding: 1rem 1.25rem;
  border-radius: 8px;
  margin: 1.25rem 0;
  border-left: 4px solid;
  background: #0e1524;
}
.callout-info { border-color: #3b82f6; }
.callout-warning { border-color: #f59e0b; }
.callout-success { border-color: #10b981; }

.footer {
  margin-top: 4rem;
  padding: 2rem 0;
  border-top: 1px solid var(--pico-border-color);
  text-align: center;
  font-size: 0.85rem;
  color: #64748b;
}