/* ==========================================================================
   Weather Forecast & Alert Application — Executive Web Dashboard
   Theme: PowerBI-Inspired Clean Executive Dark / Slate Glassmorphism
   Architecture: Pure Static CSS (GitHub Pages Ready)
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-dark: #0A1424;
  --bg-gradient-top: #0F233D;
  --bg-gradient-mid: #1A365D;
  --bg-body: #F0F4F8;
  
  --surface-card: #FFFFFF;
  --surface-glass: rgba(255, 255, 255, 0.90);
  --surface-glass-border: rgba(255, 255, 255, 0.65);
  --border-light: #E2E8F0;
  --border-subtle: #CBD5E1;
  
  --ink-primary: #0F172A;
  --ink-secondary: #334155;
  --ink-muted: #64748B;
  --ink-light: #94A3B8;
  
  /* Accent Colors */
  --accent-blue: #2563EB;
  --accent-cyan: #0284C7;
  --accent-indigo: #4F46E5;
  --accent-teal: #0D9488;
  --accent-amber: #D97706;
  
  /* Alert & Status Colors */
  --alert-critical: #EF4444;
  --alert-critical-bg: rgba(239, 68, 68, 0.12);
  --alert-warning: #F59E0B;
  --alert-warning-bg: rgba(245, 158, 11, 0.12);
  --alert-advisory: #EAB308;
  --alert-advisory-bg: rgba(234, 179, 8, 0.12);
  --alert-nominal: #10B981;
  --alert-nominal-bg: rgba(16, 185, 129, 0.12);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-hero: 0 20px 25px -5px rgba(15, 23, 42, 0.15), 0 8px 10px -6px rgba(15, 23, 42, 0.1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink-primary);
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-gradient-top) 180px, var(--bg-body) 380px, var(--bg-body) 100%);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: #F1F5F9;
}
::-webkit-scrollbar-thumb {
  background: #94A3B8;
  border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover {
  background: #64748B;
}

/* Container */
.dashboard-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px 48px;
}

/* ==========================================================================
   HEADER SECTION
   ========================================================================== */
header {
  padding: 28px 0 18px;
  color: #FFFFFF;
}

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

.brand-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: #93C5FD;
  font-weight: 700;
}

.brand-eyebrow .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #38BDF8;
  box-shadow: 0 0 8px #38BDF8;
}

.brand-title {
  font-family: 'Outfit', sans-serif;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-top: 4px;
}

.brand-subtitle {
  font-size: 14px;
  color: #CBD5E1;
  margin-top: 2px;
}

.header-meta-badge {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 12px 20px;
  font-family: 'Space Mono', monospace;
  font-size: 12.5px;
  text-align: right;
  line-height: 1.7;
  color: #F8FAFC;
}

/* ==========================================================================
   TOP SECTION: CURRENT CONDITIONS (HERO & 4-5 COMPACT KPIS)
   ========================================================================== */
.current-conditions-section {
  margin-top: 12px;
  margin-bottom: 24px;
}

.section-title-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.section-heading {
  font-family: 'Outfit', sans-serif;
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--ink-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-heading::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 16px;
  background: var(--accent-blue);
  border-radius: 2px;
}

.kpi-row-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.kpi-card {
  background: var(--surface-card);
  border-radius: 16px;
  padding: 18px 20px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  position: relative;
  overflow: hidden;
}

.kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.kpi-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--border-subtle);
}

.kpi-card.kpi-temp::after { background: var(--accent-blue); }
.kpi-card.kpi-feels::after { background: var(--accent-amber); }
.kpi-card.kpi-humidity::after { background: var(--accent-cyan); }
.kpi-card.kpi-wind::after { background: var(--accent-teal); }
.kpi-card.kpi-status::after { background: var(--accent-indigo); }

.kpi-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.kpi-label {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--ink-muted);
}

.kpi-icon {
  font-size: 18px;
  opacity: 0.85;
}

.kpi-value {
  font-family: 'Outfit', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: var(--ink-primary);
  line-height: 1.15;
}

.kpi-subtext {
  font-size: 12.5px;
  color: var(--ink-muted);
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Alert Severity Status Badge */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  margin-top: 4px;
}

.status-pill.status-nominal {
  background: var(--alert-nominal-bg);
  color: var(--alert-nominal);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-pill.status-advisory {
  background: var(--alert-advisory-bg);
  color: #B45309;
  border: 1px solid rgba(234, 179, 8, 0.3);
}

.status-pill.status-warning {
  background: var(--alert-warning-bg);
  color: #D97706;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.status-pill.status-critical {
  background: var(--alert-critical-bg);
  color: var(--alert-critical);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.status-indicator-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ==========================================================================
   FILTER & INTERACTION BAR
   ========================================================================== */
.controls-panel {
  background: var(--surface-card);
  border-radius: 16px;
  padding: 16px 20px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.day-strip-scroll {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 14px;
}

.day-pill {
  flex-shrink: 0;
  background: #F8FAFC;
  border: 1.5px solid var(--border-light);
  border-radius: 12px;
  padding: 10px 16px;
  text-align: center;
  cursor: pointer;
  min-width: 105px;
  transition: all 0.16s ease;
  user-select: none;
}

.day-pill:hover {
  background: #F1F5F9;
  border-color: #94A3B8;
}

.day-pill.active {
  background: linear-gradient(135deg, var(--bg-gradient-top), var(--accent-blue));
  border-color: transparent;
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.day-pill-name {
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  font-weight: 700;
}

.day-pill-range {
  font-family: 'Space Mono', monospace;
  font-size: 14px;
  font-weight: 700;
  margin-top: 4px;
}

.day-pill-desc {
  font-size: 11.5px;
  color: var(--ink-muted);
  margin-top: 2px;
}

.day-pill.active .day-pill-desc {
  color: #E2E8F0;
}

.filters-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 10px;
  border-top: 1px dashed var(--border-light);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-caption {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 700;
  margin-right: 4px;
}

.cat-btn {
  background: #F8FAFC;
  border: 1.5px solid var(--border-light);
  color: var(--ink-secondary);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.cat-btn:hover {
  background: #F1F5F9;
  border-color: #94A3B8;
}

.cat-btn.active {
  background: var(--ink-primary);
  border-color: var(--ink-primary);
  color: #FFFFFF;
}

.unit-switch {
  display: inline-flex;
  border: 1.5px solid var(--accent-blue);
  border-radius: 999px;
  overflow: hidden;
  background: #FFFFFF;
}

.unit-btn {
  border: none;
  background: transparent;
  color: var(--accent-blue);
  font-family: 'Space Mono', monospace;
  font-size: 12.5px;
  font-weight: 700;
  padding: 5px 14px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.unit-btn.active {
  background: var(--accent-blue);
  color: #FFFFFF;
}

.btn-reset {
  background: #EFF6FF;
  border: 1px solid #BFDBFE;
  color: var(--accent-blue);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 12.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-reset:hover {
  background: #DBEAFE;
}

/* Active Filter Tag & Clear Trigger */
.active-filter-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #EFF6FF;
  border: 1px solid #BFDBFE;
  color: #1D4ED8;
  font-size: 12px;
  font-family: 'Space Mono', monospace;
  padding: 5px 12px;
  border-radius: 999px;
  font-weight: 600;
}

.filter-clear-x {
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  color: #2563EB;
  padding: 0 2px;
  border-radius: 50%;
  transition: color 0.15s ease;
}

.filter-clear-x:hover {
  color: #EF4444;
}

/* ==========================================================================
   HOURLY EMPTY STATE (0 Timesteps Graceful Fallback)
   ========================================================================== */
.hourly-empty-state {
  background: var(--surface-card);
  border: 1.5px dashed var(--border-subtle);
  border-radius: 18px;
  padding: 44px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.empty-state-icon {
  font-size: 40px;
  margin-bottom: 12px;
  opacity: 0.9;
}

.empty-state-content {
  max-width: 520px;
  margin-bottom: 20px;
}

.empty-state-title {
  font-family: 'Outfit', sans-serif;
  font-size: 19px;
  font-weight: 700;
  color: var(--ink-primary);
  margin-bottom: 6px;
}

.empty-state-desc {
  font-size: 14.5px;
  color: var(--ink-muted);
  line-height: 1.55;
}

.empty-state-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.empty-state-btn {
  font-family: 'Inter', sans-serif;
  font-size: 13.5px;
  font-weight: 600;
  padding: 9px 20px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.16s ease;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.empty-state-btn.primary {
  background: var(--accent-blue);
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.empty-state-btn.primary:hover {
  background: #1D4ED8;
  transform: translateY(-1px);
}

.empty-state-btn.secondary {
  background: #F1F5F9;
  color: var(--ink-secondary);
  border: 1.5px solid var(--border-light);
}

.empty-state-btn.secondary:hover {
  background: #E2E8F0;
  border-color: #CBD5E1;
  color: var(--ink-primary);
}

/* ==========================================================================
   CHARTS GRID & CARDS
   ========================================================================== */
.chart-grid-2x2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-bottom: 24px;
}

.chart-card {
  background: var(--surface-card);
  border-radius: 18px;
  padding: 20px 22px 16px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.chart-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.chart-title {
  font-family: 'Outfit', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-primary);
}

.chart-badge {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 6px;
  background: #F1F5F9;
  color: var(--ink-muted);
}

.chart-canvas-wrap {
  position: relative;
  height: 240px;
  width: 100%;
  flex-grow: 1;
}

.bottom-section-grid .chart-canvas-wrap {
  height: 200px;
}

.chart-card-footer {
  font-size: 12px;
  color: var(--ink-muted);
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ==========================================================================
   BOTTOM SECTION: 7-DAY OUTLOOK & ALERTS PANEL
   ========================================================================== */
.bottom-section-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 18px;
  margin-bottom: 24px;
}

.bottom-section-grid .chart-card {
  margin-bottom: 0;
}

/* Alerts Panel */
.alerts-card {
  background: var(--surface-card);
  border-radius: 18px;
  padding: 20px 22px;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: all 0.2s ease;
}

.alerts-card.has-alerts {
  border-color: rgba(239, 68, 68, 0.45);
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.14);
}

.alerts-card.has-alerts::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3.5px;
  background: var(--alert-critical);
}

.alerts-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-light);
}

.alerts-heading {
  font-family: 'Outfit', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.alerts-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  max-height: 260px;
  padding-right: 4px;
}

.alert-item-card {
  background: #F8FAFC;
  border-radius: 12px;
  padding: 12px 14px;
  border-left: 4px solid var(--border-subtle);
  font-size: 13px;
  line-height: 1.4;
}

.alert-item-card.sev-critical {
  background: #FEF2F2;
  border-left-color: var(--alert-critical);
}

.alert-item-card.sev-warning {
  background: #FFFBEB;
  border-left-color: var(--alert-warning);
}

.alert-item-card.sev-advisory {
  background: #FEFCE8;
  border-left-color: var(--alert-advisory);
}

.alert-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.alert-type-badge {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.alert-time {
  font-size: 11.5px;
  color: var(--ink-muted);
}

.alert-desc {
  font-weight: 500;
  color: var(--ink-secondary);
}

.alert-origin-tag {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  color: var(--ink-light);
  margin-top: 4px;
}

.nominal-banner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 200px;
  background: #F0FDF4;
  border: 1px dashed #86EFAC;
  border-radius: 14px;
  padding: 20px;
}

.nominal-icon {
  font-size: 30px;
  margin-bottom: 8px;
}

.nominal-title {
  font-family: 'Outfit', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: #166534;
}

.nominal-subtitle {
  font-size: 12.5px;
  color: #15803D;
  margin-top: 4px;
  max-width: 220px;
}

/* ==========================================================================
   FOOTER SECTION
   ========================================================================== */
footer {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--border-light);
  color: var(--ink-muted);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-credit {
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-disclaimer {
  font-size: 13px;
}

.footer-records-badge {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #E2E8F0;
  color: var(--ink-secondary);
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 1200px) {
  .kpi-row-5 {
    grid-template-columns: repeat(3, 1fr);
  }
  .bottom-section-grid {
    grid-template-columns: 1fr 1fr;
  }
  .bottom-section-grid .alerts-card {
    grid-column: span 2;
  }
}

@media (max-width: 900px) {
  .chart-grid-2x2 {
    grid-template-columns: 1fr;
  }
  .bottom-section-grid {
    grid-template-columns: 1fr;
  }
  .bottom-section-grid .alerts-card {
    grid-column: span 1;
  }
  .kpi-row-5 {
    grid-template-columns: repeat(2, 1fr);
  }
  .dashboard-container {
    padding: 0 16px 36px;
  }
}

@media (max-width: 600px) {
  .kpi-row-5 {
    grid-template-columns: 1fr;
  }
  .header-meta-badge {
    text-align: left;
    width: 100%;
  }
  .filters-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .btn-reset {
    align-self: flex-end;
  }
}