/* ============================================================
   AirDealer Status Page — Aviation Dark Theme
   Slate/navy palette. Bloomberg meets airline operations.
   ============================================================ */

/* --- Design Tokens --- */
:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 400ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-default: 880px;

  /* Fonts */
  --font-body: 'Switzer', 'Helvetica Neue', sans-serif;
  --font-display: 'General Sans', 'Helvetica Neue', sans-serif;
}

/* ============================================================
   DARK MODE (Default — Aviation Operations)
   Slate/navy tones inspired by cockpit instrumentation
   ============================================================ */
[data-theme="dark"] {
  --color-bg:             #0b1117;
  --color-surface:        #111922;
  --color-surface-2:      #16202b;
  --color-surface-raised: #1b2735;
  --color-border:         #243040;
  --color-border-subtle:  #1c2836;
  --color-divider:        #1a2533;

  --color-text:           #c9d1da;
  --color-text-muted:     #6e7f92;
  --color-text-faint:     #3e4f63;

  --color-accent:         #56b8d0;
  --color-accent-hover:   #3da4bd;
  --color-accent-muted:   rgba(86, 184, 208, 0.12);

  /* Semantic */
  --color-operational:      #34d399;
  --color-operational-bg:   rgba(52, 211, 153, 0.08);
  --color-operational-ring: rgba(52, 211, 153, 0.25);

  --color-degraded:       #fbbf24;
  --color-degraded-bg:    rgba(251, 191, 36, 0.08);
  --color-degraded-ring:  rgba(251, 191, 36, 0.25);

  --color-down:           #f87171;
  --color-down-bg:        rgba(248, 113, 113, 0.08);
  --color-down-ring:      rgba(248, 113, 113, 0.25);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.35);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-glow-green: 0 0 20px rgba(52,211,153,0.15);
  --shadow-glow-yellow: 0 0 20px rgba(251,191,36,0.15);
  --shadow-glow-red: 0 0 20px rgba(248,113,113,0.15);
}

/* ============================================================
   LIGHT MODE
   ============================================================ */
[data-theme="light"] {
  --color-bg:             #eef1f5;
  --color-surface:        #ffffff;
  --color-surface-2:      #f5f7fa;
  --color-surface-raised: #ffffff;
  --color-border:         #c8d1db;
  --color-border-subtle:  #dde3ec;
  --color-divider:        #dfe5ee;

  --color-text:           #1a2332;
  --color-text-muted:     #5a6b7d;
  --color-text-faint:     #94a3b8;

  --color-accent:         #0e7490;
  --color-accent-hover:   #0c5f75;
  --color-accent-muted:   rgba(14, 116, 144, 0.08);

  --color-operational:      #059669;
  --color-operational-bg:   rgba(5, 150, 105, 0.06);
  --color-operational-ring: rgba(5, 150, 105, 0.2);

  --color-degraded:       #d97706;
  --color-degraded-bg:    rgba(217, 119, 6, 0.06);
  --color-degraded-ring:  rgba(217, 119, 6, 0.2);

  --color-down:           #dc2626;
  --color-down-bg:        rgba(220, 38, 38, 0.06);
  --color-down-ring:      rgba(220, 38, 38, 0.2);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.1);
  --shadow-glow-green: 0 0 20px rgba(5,150,105,0.1);
  --shadow-glow-yellow: 0 0 20px rgba(217,119,6,0.1);
  --shadow-glow-red: 0 0 20px rgba(220,38,38,0.1);
}

/* System preference fallback */
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg:             #eef1f5;
    --color-surface:        #ffffff;
    --color-surface-2:      #f5f7fa;
    --color-surface-raised: #ffffff;
    --color-border:         #c8d1db;
    --color-border-subtle:  #dde3ec;
    --color-divider:        #dfe5ee;
    --color-text:           #1a2332;
    --color-text-muted:     #5a6b7d;
    --color-text-faint:     #94a3b8;
    --color-accent:         #0e7490;
    --color-accent-hover:   #0c5f75;
    --color-accent-muted:   rgba(14, 116, 144, 0.08);
    --color-operational:      #059669;
    --color-operational-bg:   rgba(5, 150, 105, 0.06);
    --color-operational-ring: rgba(5, 150, 105, 0.2);
    --color-degraded:       #d97706;
    --color-degraded-bg:    rgba(217, 119, 6, 0.06);
    --color-degraded-ring:  rgba(217, 119, 6, 0.2);
    --color-down:           #dc2626;
    --color-down-bg:        rgba(220, 38, 38, 0.06);
    --color-down-ring:      rgba(220, 38, 38, 0.2);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.1);
    --shadow-glow-green: 0 0 20px rgba(5,150,105,0.1);
    --shadow-glow-yellow: 0 0 20px rgba(217,119,6,0.1);
    --shadow-glow-red: 0 0 20px rgba(220,38,38,0.1);
  }
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-subtle);
}

.header-inner {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.header-brand-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: inherit;
  transition: opacity var(--transition-interactive);
}
.header-brand-link:hover {
  opacity: 0.7;
}

.logo {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  object-fit: contain;
}

/* Dark mode: show white logo, hide black */
[data-theme="dark"] .logo-dark { display: block; }
[data-theme="dark"] .logo-light { display: none; }

/* Light mode: show black logo, hide white */
[data-theme="light"] .logo-dark { display: none; }
[data-theme="light"] .logo-light { display: block; }

/* System preference fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .logo-dark { display: block; }
  :root:not([data-theme]) .logo-light { display: none; }
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) .logo-dark { display: none; }
  :root:not([data-theme]) .logo-light { display: block; }
}

.header-wordmark {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.header-divider {
  width: 1px;
  height: 20px;
  background: var(--color-border);
  flex-shrink: 0;
}

.header-title {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: background var(--transition-interactive), color var(--transition-interactive);
}
.theme-toggle:hover {
  background: var(--color-accent-muted);
  color: var(--color-accent);
}

/* ============================================================
   STATUS BANNER
   ============================================================ */
.status-banner {
  margin: var(--space-8) auto var(--space-6);
  max-width: var(--content-default);
  padding: 0 var(--space-6);
}

.banner-inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-6) var(--space-8);
  border-radius: var(--radius-xl);
  background: var(--color-operational-bg);
  border: 1px solid var(--color-operational-ring);
  box-shadow: var(--shadow-glow-green);
  transition: background var(--transition-smooth),
              border-color var(--transition-smooth),
              box-shadow var(--transition-smooth);
}

.banner-inner[data-status="degraded"] {
  background: var(--color-degraded-bg);
  border-color: var(--color-degraded-ring);
  box-shadow: var(--shadow-glow-yellow);
}
.banner-inner[data-status="down"] {
  background: var(--color-down-bg);
  border-color: var(--color-down-ring);
  box-shadow: var(--shadow-glow-red);
}

.banner-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: var(--color-operational-ring);
  color: var(--color-operational);
  transition: background var(--transition-smooth), color var(--transition-smooth);
}
.banner-inner[data-status="degraded"] .banner-icon {
  background: var(--color-degraded-ring);
  color: var(--color-degraded);
}
.banner-inner[data-status="down"] .banner-icon {
  background: var(--color-down-ring);
  color: var(--color-down);
}

.banner-text h1 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.banner-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* Pulse animation for operational state */
@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 var(--color-operational-ring); }
  70% { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
.banner-icon.pulse {
  animation: pulse-ring 2.5s ease-out infinite;
}

/* ============================================================
   SECTIONS
   ============================================================ */
.main-content {
  padding-bottom: var(--space-16);
}

.services-section,
.uptime-section,
.incidents-section {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: 0 var(--space-6);
  margin-bottom: var(--space-8);
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-divider);
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.last-updated {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-variant-numeric: tabular-nums;
}

/* ============================================================
   SERVICE CARDS
   ============================================================ */
.services-grid {
  display: grid;
  gap: var(--space-4);
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: var(--space-2) var(--space-6);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.service-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.service-info {
  grid-column: 1;
  grid-row: 1;
}

.service-name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.service-name code {
  font-family: 'SFMono-Regular', 'Consolas', monospace;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  background: var(--color-surface-2);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  font-weight: 400;
}

.service-desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.service-status-badge {
  grid-column: 2;
  grid-row: 1;
  align-self: center;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-badge--operational {
  color: var(--color-operational);
  background: var(--color-operational-bg);
}
.status-badge--degraded {
  color: var(--color-degraded);
  background: var(--color-degraded-bg);
}
.status-badge--down {
  color: var(--color-down);
  background: var(--color-down-bg);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-dot--operational { background: var(--color-operational); }
.status-dot--degraded { background: var(--color-degraded); }
.status-dot--down { background: var(--color-down); }

@keyframes dot-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.status-dot--operational {
  animation: dot-pulse 2.5s ease-in-out infinite;
}

.service-metrics {
  grid-column: 1 / -1;
  grid-row: 2;
  display: flex;
  gap: var(--space-6);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-divider);
  flex-wrap: wrap;
}

.metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.metric-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

.metric-value {
  font-size: var(--text-sm);
  color: var(--color-text);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.metric-value--warn {
  color: var(--color-degraded);
}

.ssl-valid {
  color: var(--color-operational);
}
.ssl-expiring {
  color: var(--color-degraded);
}
.ssl-expired {
  color: var(--color-down);
}

/* ============================================================
   UPTIME GRID
   ============================================================ */
.uptime-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4);
}

.uptime-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
}

.uptime-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.uptime-card-name {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.uptime-card-badge {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-operational);
  font-variant-numeric: tabular-nums;
}

.uptime-bars {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.uptime-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.uptime-row-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  width: 60px;
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

.uptime-bar {
  flex: 1;
  height: 6px;
  background: var(--color-surface-2);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.uptime-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--color-operational);
  transition: width 800ms cubic-bezier(0.16, 1, 0.3, 1);
}

.uptime-bar-fill[data-level="warning"] {
  background: var(--color-degraded);
}
.uptime-bar-fill[data-level="critical"] {
  background: var(--color-down);
}

.uptime-row-value {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
  width: 50px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ============================================================
   INCIDENTS TIMELINE
   ============================================================ */
.incidents-timeline {
  background: var(--color-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.incidents-empty {
  padding: var(--space-10) var(--space-6);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.incidents-empty-icon {
  width: 40px;
  height: 40px;
  color: var(--color-text-faint);
  opacity: 0.5;
}

.incidents-empty h3 {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
}

.incidents-empty p {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* Incident items */
.incident-item {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-divider);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-3) var(--space-4);
  align-items: start;
}
.incident-item:last-child {
  border-bottom: none;
}

.incident-severity {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-top: 6px;
  flex-shrink: 0;
}
.incident-severity--minor { background: var(--color-degraded); }
.incident-severity--major { background: var(--color-down); }

.incident-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.incident-date {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.incident-description {
  grid-column: 2 / -1;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.incident-status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 500;
  margin-top: var(--space-2);
}
.incident-status--resolved { color: var(--color-operational); }
.incident-status--investigating { color: var(--color-degraded); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--color-divider);
  padding: var(--space-6) 0;
}

.footer-inner {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-left,
.footer-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer-brand {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-text-muted);
}

.footer-sep {
  opacity: 0.4;
}

.footer-attribution {
  color: var(--color-text-faint);
  text-decoration: none;
  transition: color var(--transition-interactive);
}
.footer-attribution:hover {
  color: var(--color-accent);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 500ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.service-card { animation: fadeInUp 500ms cubic-bezier(0.16, 1, 0.3, 1) both; }
.service-card:nth-child(1) { animation-delay: 80ms; }
.service-card:nth-child(2) { animation-delay: 160ms; }
.service-card:nth-child(3) { animation-delay: 240ms; }
.service-card:nth-child(4) { animation-delay: 320ms; }

.uptime-card { animation: fadeInUp 500ms cubic-bezier(0.16, 1, 0.3, 1) both; }
.uptime-card:nth-child(1) { animation-delay: 200ms; }
.uptime-card:nth-child(2) { animation-delay: 280ms; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 640px) {
  .header-inner {
    padding: var(--space-3) var(--space-4);
  }

  .header-title {
    display: none;
  }

  .header-divider {
    display: none;
  }

  .status-banner {
    padding: 0 var(--space-4);
    margin: var(--space-6) auto var(--space-4);
  }

  .banner-inner {
    padding: var(--space-5) var(--space-5);
    gap: var(--space-4);
  }

  .banner-text h1 {
    font-size: var(--text-lg);
  }

  .services-section,
  .uptime-section,
  .incidents-section {
    padding: 0 var(--space-4);
    margin-bottom: var(--space-6);
  }

  .service-card {
    padding: var(--space-4) var(--space-4);
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }

  .service-status-badge {
    grid-column: 1;
    grid-row: 2;
  }

  .service-metrics {
    grid-column: 1;
    grid-row: 3;
    gap: var(--space-4);
  }

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

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    padding: 0 var(--space-4);
  }

  .footer-right {
    flex-wrap: wrap;
  }
}

/* ============================================================
   SUBTLE BACKGROUND PATTERN — Radar-like grid
   ============================================================ */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse at 50% 0%, var(--color-accent-muted) 0%, transparent 60%);
  opacity: 0.5;
}