:root {
  --bg-primary: #000000;
  --bg-secondary: #0a0a0f;
  --bg-tertiary: #14141f;
  --bg-card: #1a1a2e;
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --text-muted: #606070;
  --accent-primary: #00d4ff;
  --accent-secondary: #00ff88;
  --accent-warm: #ff9f43;
  --danger: #ff4466;
  --focus-ring: #00d4ff;
  --focus-glow: rgba(0, 212, 255, 0.4);
  --success: #00ff88;
  --warning: #ffaa00;
  --info: #00b4d8;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  width: 600px;
  height: 600px;
  overflow: hidden;
}

#app {
  width: 100%;
  height: 100%;
  position: relative;
}

/* --- Screens --- */
.screen {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 0;
  left: 0;
}
.screen.hidden { display: none; }

/* --- Header --- */
.header {
  display: flex;
  align-items: center;
  padding: 14px 20px;
  background: var(--bg-secondary);
  gap: 12px;
  flex-shrink: 0;
  min-height: 58px;
}
.header h1 {
  font-size: 20px;
  font-weight: 600;
  flex: 1;
}
.header-meta {
  font-size: 12px;
  color: var(--text-secondary);
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.back-btn {
  background: transparent;
  color: var(--text-primary);
  font-size: 22px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  flex-shrink: 0;
}

/* --- Content Area --- */
.content {
  flex: 1;
  padding: 14px 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* --- Focus States --- */
.focusable {
  transition: all 0.15s ease;
  border: 2px solid transparent;
  cursor: pointer;
  min-height: 44px;
}
.focusable:focus {
  outline: none;
  border-color: var(--focus-ring);
  box-shadow: 0 0 20px var(--focus-glow);
}

/* --- Navigation Bar --- */
.nav-bar {
  display: flex;
  gap: 8px;
  padding: 10px 18px;
  background: var(--bg-secondary);
  flex-shrink: 0;
}
.nav-item {
  flex: 1;
  padding: 12px 14px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-item:focus { background: var(--bg-card); }
.nav-item.primary {
  background: var(--accent-primary);
  color: #0a0a0f;
}
.nav-item.primary:focus { background: #33ddff; }

/* --- Loading States --- */
.loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 40px;
  flex: 1;
}
.loading-spinner {
  width: 44px;
  height: 44px;
  border: 4px solid var(--bg-tertiary);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-text {
  font-size: 15px;
  color: var(--text-secondary);
}

/* --- Error States --- */
.error-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 20px;
  text-align: center;
}
.error-icon { font-size: 36px; }
.error-message {
  font-size: 14px;
  color: var(--text-secondary);
}

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-size: 14px;
  border: 1px solid var(--accent-primary);
  transition: transform 0.3s ease;
  z-index: 100;
  pointer-events: none;
  white-space: nowrap;
}
.toast.visible { transform: translateX(-50%) translateY(0); }
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }

/* --- Utility --- */
.hidden { display: none !important; }

/* =============================================
   WEATHER-SPECIFIC STYLES
   ============================================= */

/* --- Current Conditions (Home) --- */
.current-weather-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0 4px;
  gap: 2px;
}

.weather-emoji {
  font-size: 60px;
  line-height: 1.1;
}

.current-temp {
  font-size: 86px;
  font-weight: 700;
  line-height: 1;
  color: var(--text-primary);
  letter-spacing: -3px;
}

.weather-desc {
  font-size: 17px;
  color: var(--text-secondary);
  font-weight: 500;
  margin-top: 2px;
}

.weather-detail-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  font-size: 15px;
}

.detail-label {
  color: var(--text-secondary);
  font-size: 13px;
}

.detail-value {
  font-weight: 600;
  font-size: 15px;
}

.detail-sep {
  color: var(--text-muted);
}

.updated-text {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  padding-top: 2px;
}

/* --- Forecast List --- */
.list-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow-y: auto;
  max-height: 460px;
}

.forecast-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 14px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  width: 100%;
  text-align: left;
  color: var(--text-primary);
  font-size: 15px;
}

.forecast-item:focus {
  background: var(--bg-card);
  border-color: var(--focus-ring);
  box-shadow: 0 0 20px var(--focus-glow);
  outline: none;
}

.forecast-day {
  font-weight: 600;
  font-size: 15px;
  min-width: 88px;
}

.forecast-emoji {
  font-size: 26px;
  min-width: 34px;
  text-align: center;
}

.forecast-desc {
  flex: 1;
  font-size: 13px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.forecast-temps {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  flex-shrink: 0;
}

.temp-high {
  font-weight: 700;
  font-size: 16px;
  color: var(--accent-warm);
}

.temp-low {
  font-size: 12px;
  color: var(--text-secondary);
}

/* --- Day Detail --- */
.detail-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0 6px;
  gap: 4px;
}

.detail-emoji {
  font-size: 72px;
  line-height: 1.1;
}

.detail-desc {
  font-size: 19px;
  color: var(--text-secondary);
  font-weight: 500;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 4px;
}

.detail-stat {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-stat-full {
  grid-column: 1 / -1;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

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

.detail-stat-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent-primary);
}

.detail-stat-low {
  color: var(--info);
}