/* A0T Dashboard — Layout & Components */

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

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ============================================================
   Network Pulse Bar (always visible top strip)
   ============================================================ */

.pulse-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 20px;
  background: var(--pulse-bar-bg);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  min-height: 40px;
}

.pulse-bar__left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pulse-bar__logo {
  font-weight: 700;
  color: var(--accent);
  font-size: 15px;
  letter-spacing: 0.05em;
}

.pulse-bar__status {
  color: var(--text-muted);
  font-size: 12px;
}

.pulse-bar__status--connected {
  color: var(--success);
}

.pulse-bar__status--error {
  color: var(--danger);
}

.pulse-bar__center {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.pulse-bar__label {
  color: var(--text-muted);
}

.pulse-bar__sep {
  color: var(--text-dim);
  margin: 0 4px;
}

.pulse-bar__right {
  font-size: 12px;
}

.pulse-bar__age {
  color: var(--text-muted);
}

/* ============================================================
   Tab Navigation
   ============================================================ */

.tab-nav {
  display: flex;
  gap: 2px;
  padding: 4px 16px;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
}

.tab-nav__btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 13px;
  padding: 8px 16px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
}

.tab-nav__btn:hover {
  color: var(--text);
  background: var(--bg-hover);
}

.tab-nav__btn--active {
  color: var(--primary);
  background: var(--bg-hover);
  font-weight: 600;
}

.tab-nav__btn--icon {
  padding: 8px 12px;
  margin-left: auto;
}

/* ============================================================
   Main Content
   ============================================================ */

.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px;
}

.view {
  display: none;
}

.view--active {
  display: block;
}

/* ============================================================
   Card Grid
   ============================================================ */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}

.card-grid__full {
  grid-column: 1 / -1;
}

/* ============================================================
   Card Component
   ============================================================ */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 20px;
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  box-shadow: var(--shadow);
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.15s;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.card:hover::before {
  opacity: 0.5;
}

.card__header {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card__header-icon {
  font-size: 14px;
}

.card__body {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.card__body--row {
  flex-direction: row;
  align-items: center;
  gap: 12px;
}

.card__hero {
  font-size: 28px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  transition: color 0.3s;
}

.card__hero--green { color: var(--success); }
.card__hero--yellow { color: var(--warning); }
.card__hero--red { color: var(--danger); }
.card__hero--cyan { color: var(--accent); }

.card__detail {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.label {
  color: var(--text-muted);
  font-size: 12px;
}

/* ============================================================
   Progress Bar
   ============================================================ */

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-hover);
  border-radius: 4px;
  overflow: hidden;
  margin-top: 6px;
}

.progress-bar__fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--success), var(--success));
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1), background 0.5s;
  width: 0%;
  position: relative;
}

.progress-bar__fill--gradient {
  background: linear-gradient(90deg, var(--success) 0%, var(--warning) 70%, var(--danger) 95%);
}

.progress-bar__fill--warning {
  background: var(--warning);
}

.progress-bar__fill--danger {
  background: var(--danger);
}

.progress-bar__fill--blue {
  background: var(--primary);
}

/* ============================================================
   Agent Pulse Indicator
   ============================================================ */

.pulse-indicator {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text-dim);
  flex-shrink: 0;
  position: relative;
}

.pulse-indicator--active {
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: pulse-glow 1s ease-in-out infinite;
}

.pulse-indicator--active::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--success);
  opacity: 0;
  animation: pulse-ring 1s ease-out infinite;
}

.pulse-indicator--cooling {
  background: var(--warning);
  box-shadow: 0 0 6px var(--warning);
  animation: pulse-glow 2s ease-in-out infinite;
}

.pulse-indicator--idle {
  background: var(--primary);
  box-shadow: 0 0 4px var(--primary);
}

.pulse-indicator--dormant {
  background: var(--text-dim);
}

@keyframes pulse-glow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.15); }
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.8); opacity: 0; }
}

/* ============================================================
   Banner
   ============================================================ */

.banner {
  padding: 12px 16px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
}

.banner--info {
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: var(--primary);
}

.banner__actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

/* ============================================================
   Form Elements
   ============================================================ */

.input {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 6px 10px;
  outline: none;
  transition: border-color 0.15s;
  width: 320px;
  max-width: 100%;
}

.input:focus {
  border-color: var(--primary);
}

.btn {
  background: var(--bg-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 13px;
  padding: 6px 16px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.btn:hover {
  background: var(--bg-surface);
  border-color: var(--text-dim);
}

.btn--primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}

.btn--primary:hover {
  background: #2563eb;
}

/* ============================================================
   Placeholder (for future views)
   ============================================================ */

.placeholder {
  padding: 48px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 15px;
  background: var(--bg-card);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

/* ============================================================
   Trend Arrows
   ============================================================ */

.trend-up { color: var(--success); }
.trend-down { color: var(--danger); }
.trend-flat { color: var(--text-muted); }

.trend-arrow {
  font-size: 14px;
  margin-left: 4px;
  display: inline-block;
  transition: transform 0.2s;
}

/* ============================================================
   Shimmer Loading State
   ============================================================ */

.shimmer {
  background: linear-gradient(90deg, var(--bg-hover) 25%, var(--bg-surface) 50%, var(--bg-hover) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
  color: transparent !important;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ============================================================
   Traffic Light Badge
   ============================================================ */

.traffic-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.traffic-badge--green {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.traffic-badge--yellow {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.traffic-badge--red {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ============================================================
   Toggle Switch
   ============================================================ */

.toggle {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle__slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--bg-hover);
  border-radius: 11px;
  border: 1px solid var(--border);
  transition: background 0.2s;
}

.toggle__slider::before {
  content: '';
  position: absolute;
  height: 16px;
  width: 16px;
  left: 2px;
  bottom: 2px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: transform 0.2s, background 0.2s;
}

.toggle input:checked + .toggle__slider {
  background: rgba(16, 185, 129, 0.2);
  border-color: var(--success);
}

.toggle input:checked + .toggle__slider::before {
  transform: translateX(18px);
  background: var(--success);
}

/* ============================================================
   Epoch Bar Blue
   ============================================================ */

.progress-bar__fill--blue {
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

/* ============================================================
   Activity Timeline
   ============================================================ */

.activity-timeline {
  display: flex;
  gap: 2px;
  align-items: center;
  padding: 4px 0;
  flex-wrap: wrap;
}

.activity-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: background 0.3s;
}

.activity-dot--active {
  background: var(--success);
}

.activity-dot--idle {
  background: var(--bg-hover);
  border: 1px solid var(--border);
}

.activity-dot--current {
  box-shadow: 0 0 6px var(--accent);
  border: 1px solid var(--accent);
}

.activity-timeline-axis {
  display: flex;
  justify-content: space-between;
  padding-top: 4px;
  font-size: 10px;
}

/* ============================================================
   Traffic Signal (Intel View)
   ============================================================ */

.traffic-signal {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: background 0.3s, box-shadow 0.3s;
}

.traffic-signal--green {
  background: var(--success);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.5);
}

.traffic-signal--yellow {
  background: var(--warning);
  box-shadow: 0 0 20px rgba(245, 158, 11, 0.5);
}

.traffic-signal--red {
  background: var(--danger);
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.5);
  animation: pulse-glow 1.5s ease-in-out infinite;
}

/* ============================================================
   Forecast Chart (SVG bar chart)
   ============================================================ */

.forecast-chart {
  width: 100%;
  height: 80px;
  display: flex;
  align-items: flex-end;
  gap: 2px;
  padding: 4px 0;
}

.forecast-bar {
  flex: 1;
  min-width: 0;
  border-radius: 2px 2px 0 0;
  transition: height 0.5s ease, background 0.3s;
  position: relative;
  cursor: default;
}

.forecast-bar:hover {
  opacity: 0.8;
}

.forecast-bar[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 10px;
  white-space: nowrap;
  color: var(--text);
  font-family: var(--font-mono);
  z-index: 10;
}

.forecast-axis {
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  padding-top: 4px;
}

/* ============================================================
   Heatmap Grid
   ============================================================ */

.heatmap-container {
  overflow-x: auto;
}

.heatmap-grid {
  display: grid;
  grid-template-columns: 40px repeat(24, 1fr);
  gap: 2px;
  font-size: 10px;
  min-width: 500px;
}

.heatmap-header {
  color: var(--text-dim);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 9px;
  padding: 2px 0;
}

.heatmap-day {
  color: var(--text-muted);
  font-size: 11px;
  display: flex;
  align-items: center;
}

.heatmap-cell {
  aspect-ratio: 1;
  border-radius: 2px;
  min-height: 16px;
  transition: background 0.3s;
}

.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  justify-content: center;
}

.heatmap-legend__bar {
  width: 120px;
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(90deg, #064e3b, #10b981, #f59e0b, #ef4444);
}

/* ============================================================
   Insight Items
   ============================================================ */

.insight-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.insight-item:last-child {
  border-bottom: none;
}

.insight-icon {
  font-size: 16px;
  flex-shrink: 0;
}

/* ============================================================
   Golden Hour Window
   ============================================================ */

.window-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}

.window-item:last-child {
  border-bottom: none;
}

.window-time {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
}

.window-score {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
  text-align: center;
  padding: 16px;
  font-size: 12px;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
  margin-top: 24px;
  letter-spacing: 0.02em;
}

/* ============================================================
   Color Utilities
   ============================================================ */

.text-green  { color: var(--success); }
.text-yellow { color: var(--warning); }
.text-red    { color: var(--danger); }
.text-blue   { color: var(--primary); }
.text-cyan   { color: var(--accent); }
.text-muted  { color: var(--text-muted); }

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 640px) {
  .pulse-bar__center {
    display: none;
  }

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

  .banner {
    flex-direction: column;
    align-items: flex-start;
  }

  .banner__actions {
    width: 100%;
  }

  .input {
    width: 100%;
  }

  .main {
    padding: 8px;
  }

  .card__hero {
    font-size: 20px;
  }
}