/* ============================================
   Weather Widget - Minimalist Style
   Integrated into Chaoyu Fan's personal website
   ============================================ */

:root {
  --widget-accent: #306cce;
  --widget-accent-soft: #2554a0;
  --widget-text: #111827;
  --widget-text-secondary: #374151;
  --widget-text-tertiary: #6b7280;
  --widget-bg: #ffffff;
  --widget-surface-soft: #f8fafc;
  --widget-border: #d4d8de;
  --widget-radius: 8px;
  --widget-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
  --widget-transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================
   Widget Container
   ============================================ */

.weather-widget-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, sans-serif;
}

.weather-widget {
  background: var(--widget-bg);
  border: 1px solid var(--widget-border);
  border-radius: var(--widget-radius);
  box-shadow: var(--widget-shadow);
  overflow: hidden;
  transition: var(--widget-transition);
  width: 280px;
  max-width: 90vw;
}

.weather-widget.collapsed {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.weather-widget.collapsed .weather-widget-header {
  width: 100%;
  height: 100%;
  padding: 0;
  border: none;
  background: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.weather-widget.collapsed .weather-widget-title {
  display: none;
}

.weather-widget.collapsed .weather-widget-content {
  display: none;
}

.weather-widget.collapsed .weather-widget-toggle {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: linear-gradient(135deg, var(--widget-surface-soft), var(--widget-bg));
  border: 1px solid var(--widget-border);
}

/* ============================================
   Widget Header / Toggle
   ============================================ */

.weather-widget-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: linear-gradient(135deg, var(--widget-surface-soft), var(--widget-bg));
  border-bottom: 1px solid var(--widget-border);
}

.weather-widget-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--widget-text);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.weather-widget-title::before {
  content: '🌤️';
  font-size: 1rem;
}

.weather-widget-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--widget-text-secondary);
  font-size: 1.2rem;
  padding: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--widget-transition);
}

.weather-widget-toggle:hover {
  color: var(--widget-accent);
  transform: rotate(90deg);
}

/* ============================================
   Widget Content
   ============================================ */

.weather-widget-content {
  padding: 1rem;
  max-height: 500px;
  overflow-y: auto;
}

.weather-widget-content::-webkit-scrollbar {
  width: 4px;
}

.weather-widget-content::-webkit-scrollbar-track {
  background: transparent;
}

.weather-widget-content::-webkit-scrollbar-thumb {
  background: var(--widget-border);
  border-radius: 2px;
}

.weather-widget-content::-webkit-scrollbar-thumb:hover {
  background: var(--widget-text-tertiary);
}

/* ============================================
   City Selection
   ============================================ */

.widget-city-selector {
  margin-bottom: 1rem;
  display: flex;
  gap: 0.5rem;
}

.widget-city-input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--widget-border);
  border-radius: 4px;
  font-size: 0.875rem;
  color: var(--widget-text);
  background: var(--widget-surface-soft);
  transition: var(--widget-transition);
  font-family: inherit;
}

.widget-city-input:focus {
  outline: none;
  border-color: var(--widget-accent);
  background: var(--widget-bg);
  box-shadow: 0 0 0 2px rgba(48, 108, 206, 0.1);
}

.widget-search-btn {
  padding: 0.5rem 0.75rem;
  background: var(--widget-accent);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 600;
  transition: var(--widget-transition);
  font-family: inherit;
}

.widget-search-btn:hover {
  background: var(--widget-accent-soft);
  transform: translateY(-1px);
}

.widget-search-btn:active {
  transform: translateY(0);
}

/* ============================================
   Weather Card Display
   ============================================ */

.widget-weather-card {
  background: linear-gradient(135deg, #e6f2ff 0%, #f0f7ff 100%);
  border: 1px solid #d0e8ff;
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.widget-card-date {
  font-size: 0.875rem;
  color: var(--widget-text-secondary);
  font-weight: 500;
}

.widget-card-status {
  font-size: 0.875rem;
  color: var(--widget-text);
  font-weight: 500;
}

.widget-card-temp {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--widget-accent);
  line-height: 1;
}

.widget-card-range {
  font-size: 0.75rem;
  color: var(--widget-text-secondary);
  font-weight: 500;
}

/* Legacy weather display (hidden) */
.widget-weather-main {
  display: none;
}

.widget-temp-display {
  display: flex;
  align-items: flex-start;
  gap: 0.25rem;
}

.widget-temp-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--widget-accent);
  line-height: 1;
}

.widget-temp-unit {
  font-size: 0.875rem;
  color: var(--widget-text-secondary);
  margin-top: 0.25rem;
}

.widget-weather-desc {
  flex: 1;
}

.widget-weather-status {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--widget-text);
  margin: 0 0 0.25rem 0;
}

.widget-feels-like {
  font-size: 0.75rem;
  color: var(--widget-text-tertiary);
  margin: 0;
}

.widget-city-name {
  font-size: 0.75rem;
  color: var(--widget-text-secondary);
  margin-top: 0.5rem;
  font-weight: 500;
}

/* ============================================
   Weather Details Grid
   ============================================ */

.widget-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--widget-border);
}

.widget-detail-item {
  padding: 0.5rem;
  background: var(--widget-surface-soft);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.widget-detail-label {
  font-size: 0.7rem;
  color: var(--widget-text-tertiary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.widget-detail-value {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--widget-text);
}

/* ============================================
   Oil Prices
   ============================================ */

.widget-oil-section {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--widget-border);
}

.widget-oil-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--widget-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.75rem;
}

.widget-oil-prices {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.widget-oil-item {
  padding: 0.5rem;
  background: linear-gradient(135deg, #fff9e6 0%, var(--widget-surface-soft) 100%);
  border-left: 2px solid var(--widget-accent);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.widget-oil-type {
  font-size: 0.7rem;
  color: var(--widget-text-tertiary);
  font-weight: 500;
}

.widget-oil-price {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--widget-accent);
}

/* ============================================
   Update Time
   ============================================ */

.widget-update-time {
  font-size: 0.7rem;
  color: var(--widget-text-tertiary);
  text-align: center;
  padding-top: 0.75rem;
  border-top: 1px solid var(--widget-border);
}

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

.widget-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  text-align: center;
}

.widget-spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--widget-border);
  border-top-color: var(--widget-accent);
  border-radius: 50%;
  animation: widget-spin 1s linear infinite;
  margin-bottom: 0.75rem;
}

@keyframes widget-spin {
  to {
    transform: rotate(360deg);
  }
}

.widget-loading-text {
  font-size: 0.875rem;
  color: var(--widget-text-secondary);
  margin: 0;
}

/* ============================================
   Error State
   ============================================ */

.widget-error {
  padding: 1rem;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--widget-radius);
  text-align: center;
}

.widget-error-text {
  font-size: 0.875rem;
  color: #991b1b;
  margin: 0;
}

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

@media (max-width: 768px) {
  .weather-widget-container {
    bottom: 1rem;
    right: 1rem;
  }

  .weather-widget {
    width: 260px;
  }

  .widget-details-grid {
    grid-template-columns: 1fr;
  }

  .widget-oil-prices {
    grid-template-columns: 1fr;
  }

  .widget-weather-main {
    flex-direction: column;
    gap: 0.75rem;
  }

  .widget-temp-display {
    flex-direction: row;
  }

  .widget-temp-value {
    font-size: 1.75rem;
  }
}

@media (max-width: 480px) {
  .weather-widget-container {
    bottom: 0.75rem;
    right: 0.75rem;
  }

  .weather-widget {
    width: calc(100vw - 1.5rem);
    max-width: 100%;
  }

  .weather-widget.collapsed {
    width: 50px;
    height: 50px;
  }

  .widget-temp-value {
    font-size: 1.5rem;
  }

  .widget-details-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .widget-oil-prices {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
  .weather-widget-container {
    display: none;
  }
}