/* Modern Glassmorphism Weather Dashboard Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Pretendard:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700&display=swap');

:root {
  --bg-primary: #0b111e;
  --bg-secondary: #121c2e;
  --card-bg: rgba(23, 37, 61, 0.65);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-hover-border: rgba(99, 179, 237, 0.4);
  --card-hover-bg: rgba(30, 48, 78, 0.8);
  --modal-bg: rgba(15, 23, 42, 0.95);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  --accent-blue: #38bdf8;
  --accent-indigo: #6366f1;
  --accent-purple: #a855f7;
  --accent-warm: #fb923c;
  --accent-cold: #38bdf8;
  --accent-hot: #f43f5e;
  --accent-green: #34d399;
  
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --glow-blue: 0 0 25px rgba(56, 189, 248, 0.25);
  
  --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-num: 'Outfit', sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  line-height: 1.5;
}

/* Background Atmosphere Glows */
.bg-glow-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  transition: all 1.5s ease-in-out;
}

.glow-1 {
  top: -10%;
  left: 10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #2563eb, #1e40af00);
}

.glow-2 {
  top: 40%;
  right: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #7c3aed, #4c1d9500);
}

.glow-3 {
  bottom: -15%;
  left: 30%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, #0284c7, #0369a100);
}

/* App Container */
.app-wrapper {
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--card-border);
  flex-wrap: wrap;
  gap: 16px;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-icon {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, #38bdf8, #6366f1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 4px 16px rgba(56, 189, 248, 0.35);
}

.brand-text h1 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(120deg, #ffffff 30%, #93c5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text p {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.live-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(52, 211, 153, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(52, 211, 153, 0.3);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

.btn-icon {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(10px);
}

.btn-icon:hover {
  background: var(--card-hover-bg);
  border-color: var(--accent-blue);
  transform: translateY(-2px);
}

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

/* Stats Overview Bar */
.stats-banner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.stat-box {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(16px);
  padding: 16px 18px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 14px;
  transition: border-color 0.2s, transform 0.2s;
}

.stat-box:hover {
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-2px);
}

.stat-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.stat-icon.avg { background: rgba(56, 189, 248, 0.15); color: #38bdf8; }
.stat-icon.hot { background: rgba(244, 63, 94, 0.15); color: #f43f5e; }
.stat-icon.cold { background: rgba(99, 102, 241, 0.15); color: #818cf8; }
.stat-icon.gangneung { background: rgba(251, 146, 60, 0.15); color: #fb923c; }

.stat-info .stat-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.stat-info .stat-value {
  font-family: var(--font-num);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
}

.stat-info .stat-sub {
  font-size: 11px;
  color: var(--text-dim);
}

/* Control Section (Search, Regions, Sort) */
.controls-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(16px);
  padding: 18px 20px;
  border-radius: var(--radius-lg);
}

.search-and-sort-row {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

.search-input-wrapper {
  position: relative;
  flex: 1;
  min-width: 260px;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-dim);
  pointer-events: none;
}

.search-input {
  width: 100%;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--card-border);
  padding: 10px 14px 10px 42px;
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: all 0.2s;
}

.search-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

.sort-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sort-wrapper label {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
}

.sort-select {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 9px 14px;
  border-radius: var(--radius-md);
  font-size: 13px;
  outline: none;
  cursor: pointer;
}

.region-filter-bar {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.region-tab {
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  padding: 7px 15px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}

.region-tab:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
}

.region-tab.active {
  background: linear-gradient(135deg, #38bdf8, #2563eb);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 2px 10px rgba(56, 189, 248, 0.35);
  font-weight: 600;
}

/* Weather Grid */
.weather-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}

/* Weather Card */
.weather-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 20px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.weather-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #38bdf8, #818cf8);
  opacity: 0;
  transition: opacity 0.3s;
}

.weather-card:hover {
  transform: translateY(-5px);
  border-color: var(--card-hover-border);
  background: var(--card-hover-bg);
  box-shadow: var(--glass-shadow), var(--glow-blue);
}

.weather-card:hover::before {
  opacity: 1;
}

/* Featured / Highlight (e.g. Gangneung) */
.weather-card.featured {
  border-color: rgba(251, 146, 60, 0.4);
}
.weather-card.featured::before {
  opacity: 1;
  background: linear-gradient(90deg, #fb923c, #f43f5e);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.city-info h2 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.city-eng {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.region-tag {
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-muted);
}

.badge-featured {
  background: rgba(251, 146, 60, 0.2);
  color: #fb923c;
  border: 1px solid rgba(251, 146, 60, 0.4);
}

/* Weather Main Display */
.card-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 10px 0 16px;
}

.temp-group {
  display: flex;
  flex-direction: column;
}

.current-temp {
  font-family: var(--font-num);
  font-size: 38px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -1px;
  background: linear-gradient(135deg, #ffffff 40%, #bae6fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.weather-desc {
  font-size: 13px;
  color: #7dd3fc;
  font-weight: 500;
  margin-top: 4px;
}

.weather-icon-wrap {
  position: relative;
  width: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.weather-icon-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 4px 10px rgba(56, 189, 248, 0.3));
  transition: transform 0.3s ease;
}

.weather-card:hover .weather-icon-wrap img {
  transform: scale(1.12) rotate(3deg);
}

/* Card Details Bottom Grid */
.card-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.metric-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.metric-item span.val {
  font-family: var(--font-num);
  color: var(--text-main);
  font-weight: 600;
}

.card-footer {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--text-dim);
}

.minmax-badge {
  display: flex;
  gap: 6px;
}
.min-t { color: #60a5fa; }
.max-t { color: #f87171; }

/* Modal View */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 20, 0.75);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--modal-bg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  max-width: 650px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
  padding: 28px;
  transform: scale(0.95) translateY(10px);
  transition: transform 0.25s ease;
  position: relative;
}

.modal-overlay.active .modal-card {
  transform: scale(1) translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: var(--text-muted);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all 0.2s;
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

/* Modal Content Sections */
.modal-header-hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.modal-hero-city h2 {
  font-size: 26px;
  font-weight: 800;
}

.modal-hero-temp {
  font-family: var(--font-num);
  font-size: 48px;
  font-weight: 700;
  color: #38bdf8;
}

.modal-hourly-forecast {
  margin: 20px 0;
}

.modal-section-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.hourly-scroll {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 10px;
}

.hourly-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  min-width: 76px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.hourly-item .h-time {
  font-size: 11px;
  color: var(--text-dim);
}

.hourly-item img {
  width: 32px;
  height: 32px;
}

.hourly-item .h-temp {
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 600;
}

.modal-details-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 20px;
}

.detail-tile {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 14px;
}

.detail-tile .tile-title {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.detail-tile .tile-val {
  font-family: var(--font-num);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}

/* Settings Modal */
.api-key-input-group {
  margin: 18px 0;
}

.api-key-input-group label {
  display: block;
  font-size: 13px;
  margin-bottom: 6px;
  color: var(--text-muted);
}

.api-key-input-group input {
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--card-border);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: #fff;
  font-family: monospace;
  font-size: 13px;
  outline: none;
}

.api-key-input-group input:focus {
  border-color: var(--accent-blue);
}

/* Footer */
.app-footer {
  margin-top: 50px;
  text-align: center;
  font-size: 12px;
  color: var(--text-dim);
  border-top: 1px solid var(--card-border);
  padding-top: 20px;
}

/* Skeleton Loading */
.skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.03) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.03) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 6px;
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Toast Notification */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(56, 189, 248, 0.3);
  backdrop-filter: blur(10px);
  color: #fff;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  box-shadow: var(--glass-shadow);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .app-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .header-actions {
    width: 100%;
    justify-content: space-between;
  }
  .modal-details-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}