/* ============================================================
   Airport CEO Baggage Bay Calculator - Minimal Dark Theme
   ============================================================ */

:root {
  --bg-main: #090d16;
  --bg-card: #111827;
  --bg-card-sub: #172136;
  --bg-input: #0e1524;
  --border-color: #1f293d;
  --border-focus: #38bdf8;
  
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --accent-cyan: #38bdf8;
  --accent-cyan-dim: rgba(56, 189, 248, 0.12);
  --accent-emerald: #34d399;
  --accent-emerald-dim: rgba(52, 211, 153, 0.15);
  --accent-amber: #fbbf24;
  --accent-amber-dim: rgba(251, 191, 36, 0.15);
  --accent-rose: #f43f5e;
  --accent-rose-dim: rgba(244, 63, 94, 0.15);

  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  padding: 24px 16px;
  min-height: 100vh;
}

.app-container {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Header */
.header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 18px;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 14px;
}

.badge-icon {
  font-size: 32px;
  background: var(--bg-card-sub);
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

h1 {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.accent-text {
  color: var(--accent-cyan);
}

.text-emerald {
  color: var(--accent-emerald);
}

.text-mono {
  font-family: var(--font-mono);
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-top: 2px;
}

.header-badges {
  display: flex;
  gap: 8px;
}

.pill-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.78rem;
  padding: 5px 12px;
  border-radius: 9999px;
  font-weight: 600;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-muted);
}

.pill-badge a {
  color: var(--accent-cyan);
  text-decoration: none;
}

.pill-badge a:hover {
  text-decoration: underline;
}

.version-badge {
  background: rgba(56, 189, 248, 0.08);
  color: var(--accent-cyan);
  border-color: rgba(56, 189, 248, 0.25);
}

/* Card Base */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

h2 {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.info-tag {
  font-size: 0.76rem;
  background: var(--bg-card-sub);
  color: var(--text-muted);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

/* Presets Card */
.presets-card {
  padding: 14px 18px;
  background: var(--bg-card-sub);
  border-color: var(--border-color);
}

.presets-header {
  margin-bottom: 10px;
}

.section-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.presets-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.btn-preset {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

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

.btn-preset.active {
  background: var(--accent-cyan-dim);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  font-weight: 600;
}

.btn-reset {
  margin-left: auto;
  color: var(--text-muted);
}

.btn-reset:hover {
  color: var(--accent-rose);
  border-color: var(--accent-rose);
}

/* Main Grid */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 860px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
}

/* Input Section */
.input-groups {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.input-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  transition: border-color 0.2s;
}

.input-card:hover {
  border-color: #2b3952;
}

.input-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.input-label-row label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  cursor: pointer;
}

.stand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.dot-small { background-color: #38bdf8; }
.dot-medium { background-color: #fbbf24; }
.dot-large { background-color: #a855f7; }

.stand-info {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: normal;
}

.input-val-badge {
  font-family: var(--font-mono);
  background: var(--bg-card-sub);
  color: var(--accent-cyan);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--border-color);
}

.slider-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.range-slider {
  flex: 1;
  accent-color: var(--accent-cyan);
  cursor: pointer;
  height: 6px;
  background: var(--border-color);
  border-radius: 4px;
}

.num-input {
  width: 58px;
  background: var(--bg-card-sub);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  padding: 5px 8px;
  text-align: center;
}

.num-input:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

.input-subtext {
  font-size: 0.77rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* Strategy Options */
.strategy-card {
  margin-top: 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
}

.strategy-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  margin-bottom: 12px;
  color: var(--text-main);
}

.strategy-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.radio-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background 0.15s;
}

.radio-label:hover {
  background: var(--bg-card-sub);
}

.radio-label input[type="radio"] {
  accent-color: var(--accent-cyan);
  margin-top: 3px;
}

.radio-text {
  display: flex;
  flex-direction: column;
  font-size: 0.83rem;
}

.radio-text small {
  color: var(--text-muted);
  font-size: 0.75rem;
}

/* Results Section */
.status-indicator {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 9999px;
  background: var(--accent-emerald-dim);
  color: var(--accent-emerald);
  border: 1px solid rgba(52, 211, 153, 0.3);
  font-weight: 600;
}

.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 18px;
}

.metric-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
}

.metric-card.highlight-metric {
  background: linear-gradient(180deg, rgba(56, 189, 248, 0.08) 0%, var(--bg-input) 100%);
  border-color: rgba(56, 189, 248, 0.3);
}

.metric-label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 4px;
}

.metric-value-row {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.metric-huge {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
}

.metric-unit {
  font-size: 0.9rem;
  color: var(--text-dim);
  font-weight: 600;
}

.metric-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* Capacity Bar */
.capacity-overview {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-bottom: 18px;
}

.capacity-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  margin-bottom: 10px;
}

.capacity-badge {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-family: var(--font-mono);
}

.capacity-badge.safe {
  background: var(--accent-emerald-dim);
  color: var(--accent-emerald);
}

.capacity-badge.caution {
  background: var(--accent-amber-dim);
  color: var(--accent-amber);
}

.capacity-badge.overload {
  background: var(--accent-rose-dim);
  color: var(--accent-rose);
}

.progress-track {
  height: 10px;
  background: var(--bg-card-sub);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}

.progress-bar {
  height: 100%;
  background: var(--accent-emerald);
  border-radius: 999px;
  transition: width 0.3s ease, background-color 0.3s ease;
}

.progress-bar.caution {
  background: var(--accent-amber);
}

.progress-bar.overload {
  background: var(--accent-rose);
}

.safe-marker {
  position: absolute;
  left: 79.16%; /* 9.5 / 12 * 100 */
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(255, 255, 255, 0.4);
}

.progress-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 5px;
  font-family: var(--font-mono);
}

/* Ops Breakdown */
.ops-breakdown h3 {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 12px;
}

.ops-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}

@media (max-width: 500px) {
  .ops-row {
    grid-template-columns: 1fr;
  }
}

.ops-item {
  display: flex;
  gap: 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
}

.ops-icon {
  font-size: 22px;
}

.ops-info {
  display: flex;
  flex-direction: column;
}

.ops-title {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.ops-highlight {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 1px 0;
}

.ops-status.safe {
  color: var(--accent-emerald);
  font-weight: 600;
  font-size: 0.88rem;
}

.ops-note {
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* Advanced Section */
.advanced-section {
  padding: 0;
  overflow: hidden;
}

.accordion-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  background: var(--bg-card);
  user-select: none;
  transition: background 0.15s;
}

.accordion-toggle:hover {
  background: var(--bg-card-sub);
}

.accordion-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.accordion-icon {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  transition: transform 0.2s ease;
  width: 16px;
  text-align: center;
}

.accordion-toggle.open .accordion-icon {
  transform: rotate(90deg);
}

.accordion-title h3 {
  font-size: 0.98rem;
  font-weight: 600;
}

.accordion-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.pill-advanced {
  background: rgba(168, 85, 247, 0.12);
  color: #c084fc;
  border-color: rgba(168, 85, 247, 0.25);
}

.advanced-body {
  padding: 20px;
  border-top: 1px solid var(--border-color);
  background: #0d1322;
}

.advanced-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 760px) {
  .advanced-grid {
    grid-template-columns: 1fr;
  }
}

.advanced-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
}

.advanced-card.full-width {
  grid-column: 1 / -1;
}

.advanced-card h4 {
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.card-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.stat-highlight-box {
  display: flex;
  gap: 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px;
  margin-bottom: 10px;
}

.stat-box {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.2;
}

.stat-text {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-main);
  margin-top: 2px;
}

.stat-box small {
  font-size: 0.7rem;
  color: var(--text-dim);
}

.rule-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(56, 189, 248, 0.05);
  border-left: 2px solid var(--accent-cyan);
  padding: 6px 10px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* Security Tiers */
.security-tiers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 8px;
}

.tier-box {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.tier-box.highlight-tier {
  border-color: rgba(52, 211, 153, 0.4);
  background: rgba(52, 211, 153, 0.04);
}

.tier-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--font-mono);
  background: var(--border-color);
  color: var(--text-muted);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
}

.badge-tier3 {
  background: var(--accent-emerald-dim);
  color: var(--accent-emerald);
}

.tier-box strong {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 4px;
}

.tier-box p {
  font-size: 0.74rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Footer */
.footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  padding: 16px 0 24px;
  border-top: 1px solid var(--border-color);
}

.footer-links {
  margin-top: 6px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent-cyan);
  text-decoration: underline;
}