/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(248, 249, 250, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background 0.3s ease, border-color 0.3s ease;
}

[data-theme="dark"] .site-header {
  background: rgba(15, 17, 23, 0.85);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 0 var(--space-md);
}

/* Logo */
.site-logo {
  text-decoration: none;
  flex-shrink: 0;
}

.logo-text {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.03em;
  transition: color 0.2s;
}

.logo-accent {
  color: var(--color-accent);
  transition: color 0.2s;
}

/* Search */
.search-form {
  flex: 1;
  max-width: 360px;
  position: relative;
}

.search-input-wrapper {
  display: flex;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-pill);
  padding: 0 var(--space-xs);
  height: 40px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input-wrapper:focus-within {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.1);
}

.search-input {
  flex: 1;
  background: none;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  padding: 0 var(--space-sm);
  min-width: 0;
}

.search-input::placeholder {
  color: var(--color-text-muted);
}

.geo-btn,
.search-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: var(--color-text-secondary);
  transition: color 0.2s, background 0.2s;
  flex-shrink: 0;
}

.geo-btn:hover,
.search-btn:hover {
  color: var(--color-accent);
  background: var(--color-surface-hover);
}

/* Search Results Dropdown */
.search-results {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  box-shadow: 0 8px 24px var(--color-shadow-lg);
  overflow: hidden;
  z-index: 10;
}

.search-result-item {
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  transition: background 0.15s;
  border-bottom: 1px solid var(--color-border);
}

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

.search-result-item:hover,
.search-result-item[aria-selected="true"] {
  background: var(--color-surface-hover);
}

.search-result-item .result-name {
  font-weight: 600;
}

.search-result-item .result-detail {
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
}

/* Header Controls */
.header-controls {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* Theme Toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--color-text-secondary);
  transition: color 0.2s, background 0.2s;
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-hover);
}

.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

/* Explicit Toggle */
.explicit-toggle-wrapper {
  display: flex;
  align-items: center;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  cursor: pointer;
  user-select: none;
}

.toggle-label-text {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color 0.2s;
}

.toggle-switch {
  position: relative;
  width: 36px;
  height: 20px;
}

.toggle-input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--color-border);
  border-radius: var(--border-radius-pill);
  transition: background 0.25s;
  cursor: pointer;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 2px;
  bottom: 2px;
  background: white;
  border-radius: 50%;
  transition: transform 0.25s;
}

.toggle-input:checked + .toggle-slider {
  background: var(--color-accent);
}

.toggle-input:checked + .toggle-slider::before {
  transform: translateX(16px);
}

.toggle-input:focus-visible + .toggle-slider {
  box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.2);
}

/* ===== Hero Section ===== */
.hero {
  text-align: center;
  padding: var(--space-xl) 0 var(--space-2xl);
}

.hero-icon-wrapper {
  margin-bottom: var(--space-sm);
}

.hero-icon {
  width: 120px;
  height: 120px;
  margin: 0 auto;
  object-fit: contain;
}

.hero-temp {
  font-size: var(--font-size-hero-temp);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--color-text);
}

.hero-temp::after {
  content: '°';
  font-weight: 700;
  opacity: 0.5;
}

.hero-phrase {
  font-size: var(--font-size-phrase);
  font-weight: 600;
  color: var(--color-text);
  margin-top: var(--space-sm);
  margin-bottom: var(--space-lg);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.4;
}

.hero-location {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-lg);
}

.location-name {
  font-weight: 500;
}

.location-time {
  opacity: 0.7;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
}

.stat {
  text-align: center;
}

.stat-label {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
  margin-bottom: var(--space-xs);
}

.stat-value {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: all 0.2s;
  line-height: 1.5;
}

.btn-primary {
  background: var(--color-accent);
  color: white;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-surface-hover);
}

/* ===== Empty & Error States ===== */
.empty-state,
.error-state {
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  color: var(--color-text-secondary);
}

.empty-icon svg,
.error-icon svg {
  stroke: var(--color-text-muted);
  margin: 0 auto var(--space-md);
}

.empty-title,
.error-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.empty-text,
.error-text {
  font-size: var(--font-size-base);
  max-width: 400px;
  margin: 0 auto var(--space-lg);
  line-height: 1.6;
}

/* ===== Detail Cards ===== */
.details-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.detail-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
  transition: background 0.3s, border-color 0.3s;
}

.detail-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.detail-value {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.detail-extra {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--color-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

.modal {
  background: var(--color-surface);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
  max-width: 400px;
  width: 100%;
  text-align: center;
  box-shadow: 0 16px 48px var(--color-shadow-lg);
}

.modal-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.modal-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* ===== Footer ===== */
.site-footer {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.site-footer a {
  color: var(--color-text-secondary);
}

.site-footer a:hover {
  color: var(--color-accent);
}