@import url("https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Poppins:wght@300;400;500;600;700&display=swap");

/* ==========================================================
   1. CSS VARIABLES
   ========================================================== */
:root {
  --bg: #080c12;
  --bg-secondary: #0f1520;
  --card-bg: rgba(15, 22, 36, 0.45);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-highlight: rgba(255, 255, 255, 0.14);
  --card-shadow:
    0 16px 48px rgba(0, 0, 0, 0.6), 0 4px 12px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  --glass-blur: 28px;
  --glass-sat: 180%;

  --text: #e8f1ff;
  --text-muted: #7a8fa8;
  --title: #ffffff;
  --label: #4a6280;

  --accent: #4fc3f7;
  --accent-glow: rgba(79, 195, 247, 0.3);
  --accent-2: #00e5ff;
  --accent-warm: #ff8a65;

  --metric-bg: rgba(255, 255, 255, 0.04);
  --metric-border: rgba(255, 255, 255, 0.07);

  --input-bg: rgba(255, 255, 255, 0.06);
  --input-border: rgba(255, 255, 255, 0.1);
  --input-text: #e8f1ff;

  --nav-bg: rgba(8, 12, 18, 0.85);
  --suggestion-bg: #0f1a28;
  --suggestion-hover: rgba(79, 195, 247, 0.1);

  --footer-bg: rgba(8, 12, 18, 0.92);
  --footer-border: rgba(255, 255, 255, 0.05);

  --high-temp: #ff7043;
  --low-temp: #4fc3f7;

  --aurora-1: rgba(79, 195, 247, 0.15);
  --aurora-2: rgba(0, 229, 255, 0.1);
  --aurora-3: rgba(103, 58, 183, 0.12);

  /* AQI Colors */
  --aqi-good: #22c55e;
  --aqi-moderate: #eab308;
  --aqi-sensitive: #f97316;
  --aqi-unhealthy: #ef4444;
  --aqi-very: #a855f7;
  --aqi-hazardous: #991b1b;

  /* Shared */
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --radius-xl: 32px;
  --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --spring: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Light Mode */
body:not(.dark-mode) {
  --bg: #ccddf0;
  --bg-secondary: #b8cfe6;
  --card-bg: rgba(255, 255, 255, 0.52);
  --card-border: rgba(255, 255, 255, 0.8);
  --card-highlight: rgba(255, 255, 255, 0.95);
  --card-shadow:
    0 16px 48px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);

  --text: #1a2e42;
  --text-muted: #4a6278;
  --title: #0d1b2a;
  --label: #5a7590;

  --accent: #0077b6;
  --accent-glow: rgba(0, 119, 182, 0.22);
  --accent-2: #0096c7;
  --accent-warm: #e64a19;

  --metric-bg: rgba(255, 255, 255, 0.6);
  --metric-border: rgba(0, 119, 182, 0.12);

  --input-bg: rgba(255, 255, 255, 0.72);
  --input-border: rgba(0, 119, 182, 0.18);
  --input-text: #1a2e42;

  --nav-bg: rgba(200, 220, 244, 0.88);
  --suggestion-bg: #ffffff;
  --suggestion-hover: rgba(0, 119, 182, 0.08);

  --footer-bg: rgba(190, 215, 238, 0.92);
  --footer-border: rgba(0, 0, 0, 0.06);

  --aurora-1: rgba(0, 119, 182, 0.1);
  --aurora-2: rgba(0, 180, 216, 0.08);
  --aurora-3: rgba(72, 149, 239, 0.09);
}

/* ==========================================================
   2. RESET & BASE
   ========================================================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}

body {
  font-family: "Poppins", "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition:
    background-color 0.6s ease,
    color 0.4s ease;
  overflow-x: hidden;
  position: relative;
}

h1,
h2,
h3,
.brand-name,
.temperature-value,
.main-title {
  font-family: "Playfair Display", Georgia, "Times New Roman", serif;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.hidden {
  display: none !important;
}
a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
ul {
  list-style: none;
}

/* ==========================================================
   3. WEATHER PARTICLE CANVAS
   ========================================================== */
#weatherCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.8;
}

/* ==========================================================
   4. AURORA BACKGROUND
   ========================================================== */
.aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.aurora-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  will-change: transform;
}

.blob-1 {
  width: 700px;
  height: 700px;
  background: var(--aurora-1);
  top: -200px;
  left: -120px;
  animation: blobFloat1 24s ease-in-out infinite;
}
.blob-2 {
  width: 500px;
  height: 500px;
  background: var(--aurora-2);
  top: 30%;
  right: -100px;
  animation: blobFloat2 20s ease-in-out infinite 3s;
}
.blob-3 {
  width: 420px;
  height: 420px;
  background: var(--aurora-3);
  bottom: 8%;
  left: 18%;
  animation: blobFloat3 28s ease-in-out infinite 6s;
}

/* Weather-specific aurora colors */
body[data-weather="clear"] .blob-1 {
  background: rgba(79, 195, 247, 0.18);
}
body[data-weather="clear"] .blob-2 {
  background: rgba(255, 213, 79, 0.11);
}
body[data-weather="clear"] .blob-3 {
  background: rgba(0, 229, 255, 0.14);
}

body[data-weather="clouds"] .blob-1 {
  background: rgba(100, 116, 139, 0.16);
}
body[data-weather="clouds"] .blob-2 {
  background: rgba(148, 163, 184, 0.1);
}
body[data-weather="clouds"] .blob-3 {
  background: rgba(71, 85, 105, 0.12);
}

body[data-weather="rain"] .blob-1 {
  background: rgba(56, 128, 255, 0.16);
}
body[data-weather="rain"] .blob-2 {
  background: rgba(96, 165, 250, 0.11);
}
body[data-weather="rain"] .blob-3 {
  background: rgba(30, 64, 175, 0.14);
}

body[data-weather="thunder"] .blob-1 {
  background: rgba(124, 58, 237, 0.18);
}
body[data-weather="thunder"] .blob-2 {
  background: rgba(79, 70, 229, 0.12);
}
body[data-weather="thunder"] .blob-3 {
  background: rgba(167, 139, 250, 0.1);
}

body[data-weather="snow"] .blob-1 {
  background: rgba(186, 230, 253, 0.18);
}
body[data-weather="snow"] .blob-2 {
  background: rgba(224, 242, 254, 0.13);
}
body[data-weather="snow"] .blob-3 {
  background: rgba(125, 211, 252, 0.11);
}

/* ==========================================================
   5. DEEP GLASSMORPHISM CARD
   ========================================================== */
.glass-card {
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  border: 1px solid var(--card-border);
  border-top-color: var(--card-highlight);
  border-left-color: rgba(255, 255, 255, 0.1);
  box-shadow: var(--card-shadow);
  position: relative;
}

/* Inner top-edge highlight via pseudo-element (volumetric look) */
.glass-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 12px;
  right: 12px;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.22),
    transparent
  );
  border-radius: 50%;
  pointer-events: none;
}

/* ==========================================================
   6. ALERT BANNER
   ========================================================== */
.alert-banner {
  position: sticky;
  top: 0;
  z-index: 90;
  transform: translateY(-100%);
  opacity: 0;
  transition:
    transform 0.4s cubic-bezier(0.34, 1.2, 0.64, 1),
    opacity 0.3s ease;
}

.alert-banner:not(.hidden) {
  transform: translateY(0);
  opacity: 1;
}

.alert-banner[data-severity="extreme"],
.alert-banner[data-severity="severe"] {
  --alert-color: #ef4444;
  --alert-bg: rgba(239, 68, 68, 0.12);
  --alert-border: rgba(239, 68, 68, 0.35);
}
.alert-banner[data-severity="moderate"] {
  --alert-color: #f97316;
  --alert-bg: rgba(249, 115, 22, 0.1);
  --alert-border: rgba(249, 115, 22, 0.3);
}
.alert-banner[data-severity="minor"] {
  --alert-color: #eab308;
  --alert-bg: rgba(234, 179, 8, 0.1);
  --alert-border: rgba(234, 179, 8, 0.3);
}
/* Default fallback */
.alert-banner {
  --alert-color: #f97316;
  --alert-bg: rgba(249, 115, 22, 0.1);
  --alert-border: rgba(249, 115, 22, 0.3);
}

.alert-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 20px;
  max-width: 1200px;
  margin: 0 auto;
  background: var(--alert-bg);
  border-bottom: 1px solid var(--alert-border);
  backdrop-filter: blur(20px);
}

.alert-icon-wrap {
  position: relative;
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.alert-pulse-ring {
  position: absolute;
  inset: -4px;
  border: 2px solid var(--alert-color);
  border-radius: 50%;
  animation: alertPulse 2s ease-in-out infinite;
}

.alert-icon {
  font-size: 1.1rem;
}

.alert-content {
  flex: 1;
  min-width: 0;
}

.alert-headline {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--alert-color);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.alert-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.alert-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.alert-nav button {
  background: none;
  border: 1px solid var(--alert-border);
  color: var(--alert-color);
  border-radius: 6px;
  padding: 3px 8px;
  cursor: pointer;
  font-size: 0.72rem;
  transition: var(--transition);
}
.alert-nav button:hover {
  background: var(--alert-bg);
}

.alert-dismiss {
  flex-shrink: 0;
  background: none;
  border: 1px solid var(--alert-border);
  color: var(--alert-color);
  border-radius: 50%;
  width: 26px;
  height: 26px;
  font-size: 0.72rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.alert-dismiss:hover {
  background: var(--alert-color);
  color: #fff;
}

.alert-banner.dismissing {
  transform: translateY(-100%);
  opacity: 0;
  transition:
    transform 0.3s ease,
    opacity 0.25s ease;
}

/* ==========================================================
   7. SITE HEADER & NAVIGATION
   ========================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--card-border);
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  flex-wrap: wrap;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex-shrink: 0;
}
.brand-icon {
  font-size: 1.5rem;
}
.brand-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--title);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.search-wrapper {
  flex: 1;
  min-width: 200px;
  max-width: 420px;
  position: relative;
}
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  pointer-events: none;
  display: flex;
  align-items: center;
}

#cityInput {
  width: 100%;
  padding: 11px 40px 11px 42px;
  border-radius: var(--radius-md);
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--input-text);
  font-family: "Poppins", sans-serif;
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}
#cityInput::placeholder {
  color: var(--text-muted);
}
#cityInput:focus {
  border-color: var(--accent);
  box-shadow:
    0 0 0 3px var(--accent-glow),
    0 0 20px var(--accent-glow);
}

.clear-btn {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 4px;
  border-radius: 50%;
  transition: var(--transition);
}
.clear-btn:hover {
  color: var(--text);
  background: var(--metric-bg);
}

.suggestions-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--suggestion-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  z-index: 200;
  overflow: hidden;
  animation: slideDown 0.22s cubic-bezier(0.34, 1.3, 0.64, 1);
}

.suggestion-item {
  padding: 12px 16px;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--text);
  transition: background 0.15s;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--card-border);
}
.suggestion-item:last-child {
  border-bottom: none;
}
.suggestion-item::before {
  content: "📍";
  font-size: 0.8rem;
  opacity: 0.6;
  flex-shrink: 0;
}
.suggestion-item:hover,
.suggestion-item:focus {
  background: var(--suggestion-hover);
  color: var(--accent);
  outline: none;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.unit-toggle {
  display: flex;
  background: var(--metric-bg);
  border: 1px solid var(--metric-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.unit-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: "Poppins", sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 7px 11px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.unit-btn.active {
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 12px var(--accent-glow);
}
.unit-btn:hover:not(.active) {
  color: var(--text);
  background: var(--metric-bg);
}

.theme-toggle-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
}
.theme-icon {
  font-size: 0.9rem;
}
.toggle-label {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
  cursor: pointer;
}
.toggle-label input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}
.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--text-muted);
  border-radius: 26px;
  transition: background 0.3s;
}
.toggle-track::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  background: #fff;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}
input:checked + .toggle-track {
  background: var(--accent);
}
input:checked + .toggle-track::after {
  transform: translateX(22px);
}

/* Location Button + Ripple */
.loc-btn,
.ripple-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  font-family: "Poppins", sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(34, 197, 94, 0.3);
}
.loc-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(34, 197, 94, 0.45);
}
.loc-btn:active {
  transform: translateY(0);
}

/* Ripple effect */
.ripple-wave {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
  transform: scale(0);
  animation: rippleAnim 0.6s linear forwards;
  pointer-events: none;
}

/* ==========================================================
   8. MAIN CONTENT AREA
   ========================================================== */
#mainContent {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 70px;
}

/* ==========================================================
   9. LOADING STATE
   ========================================================== */
.loading-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100px 20px;
  gap: 28px;
}

.weather-spinner {
  position: relative;
  width: 92px;
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.spinner-sun {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #ffe082, #ff8f00);
  box-shadow:
    0 0 24px rgba(255, 193, 7, 0.65),
    0 0 50px rgba(255, 193, 7, 0.3);
  position: absolute;
  z-index: 2;
  animation: sunPulse 1.4s ease-in-out infinite alternate;
}

.spinner-ring {
  position: absolute;
  inset: 0;
  border: 3px solid transparent;
  border-top-color: var(--accent);
  border-right-color: var(--accent-2);
  border-radius: 50%;
  animation: spinRing 1s linear infinite;
  box-shadow: 0 0 14px var(--accent-glow);
}

.spinner-cloud {
  position: absolute;
  font-size: 1.4rem;
  bottom: -4px;
  right: -4px;
  z-index: 3;
  animation: cloudBounce 2s ease-in-out infinite alternate;
}

.loading-text {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.dots span {
  display: inline-block;
  animation: dotFade 1.4s ease-in-out infinite;
}
.dots span:nth-child(2) {
  animation-delay: 0.2s;
}
.dots span:nth-child(3) {
  animation-delay: 0.4s;
}

/* ==========================================================
   10. ERROR CARD
   ========================================================== */
.error-card {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.28);
  border-radius: var(--radius-md);
  padding: 26px 34px;
  color: #fca5a5;
  text-align: center;
  font-size: 1rem;
  font-weight: 500;
  max-width: 520px;
  margin: 70px auto;
  backdrop-filter: blur(12px);
  animation: fadeInUp 0.4s ease both;
}

/* ==========================================================
   11. DASHBOARD
   ========================================================== */
.dashboard {
  animation: fadeInUp 0.6s ease both;
}

.location-section {
  text-align: center;
  margin-bottom: 30px;
  animation: fadeInUp 0.5s ease both;
}

.main-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--title);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
  line-height: 1.2;
}

.update-time {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* ==========================================================
   12. CURRENT WEATHER CARD
   ========================================================== */
.forecast-row {
  border-radius: var(--radius-xl);
  padding: 44px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: center;
  gap: 30px;
  margin-bottom: 32px;
  animation: fadeInUp 0.6s ease 0.1s both;
}

.temp-col {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.temp-display {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.temperature-value {
  font-size: 5.8rem;
  font-weight: 700;
  color: var(--title);
  line-height: 1;
  letter-spacing: -0.04em;
  transition: color 0.3s ease;
}

.feels-like {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 6px;
}
.feels-like span {
  color: var(--accent);
  font-weight: 600;
}

.sun-info {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.sun-item {
  display: flex;
  align-items: center;
  gap: 10px;
}
.sun-icon {
  font-size: 1.25rem;
}
.sun-label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--label);
  font-weight: 600;
}
.sun-time {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}

.icon-col {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
}
.icon-col::before {
  display: none !important;
}

.large-icon {
  font-size: 9rem;
  display: block;
  line-height: 1;
  filter: drop-shadow(0 0 24px rgba(255, 255, 255, 0.18));
  background: transparent !important;
}

.pulse-icon {
  animation: pulseIcon 3.5s ease-in-out infinite;
}
.condition-text {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  text-align: center;
}

/* ==========================================================
   13. METRICS GRID (Drag & Drop)
   ========================================================== */
.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.metric {
  background: var(--metric-bg);
  border: 1px solid var(--metric-border);
  border-radius: var(--radius-md);
  padding: 18px 12px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  transition:
    var(--spring),
    border-color 0.25s;
  backdrop-filter: blur(10px);
  cursor: grab;
  position: relative;
  user-select: none;
}

.metric:hover {
  border-color: var(--accent);
  box-shadow:
    0 0 0 1px var(--accent-glow),
    0 8px 28px var(--accent-glow);
  transform: translateY(-3px) scale(1.02);
}
.metric:active {
  cursor: grabbing;
}

/* Drag handle */
.drag-handle {
  position: absolute;
  top: 7px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.8rem;
  color: var(--label);
  opacity: 0;
  transition: opacity 0.2s;
  letter-spacing: 1px;
}
.metric:hover .drag-handle {
  opacity: 0.7;
}

/* Drag states */
.metric.dragging {
  opacity: 0.4;
  cursor: grabbing;
  transform: scale(0.97);
  box-shadow: 0 0 0 2px var(--accent);
}

.metric.drag-over {
  border-color: var(--accent);
  background: rgba(79, 195, 247, 0.08);
  transform: scale(1.04);
  box-shadow:
    0 0 0 2px var(--accent),
    0 12px 32px var(--accent-glow);
}

.metric-icon {
  font-size: 1.8rem;
  display: block;
  line-height: 1;
  margin-top: 6px;
}
.metric-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  display: block;
}
.metric-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--label);
  font-weight: 600;
}
.metric-sub {
  font-size: 0.7rem;
  color: var(--accent);
  font-weight: 500;
  margin-top: 2px;
}

/* ==========================================================
   14. AQI SECTION
   ========================================================== */
.aqi-section {
  border-radius: var(--radius-xl);
  padding: 32px 36px;
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 32px;
  animation: fadeInUp 0.6s ease 0.15s both;
  overflow: hidden;
}

.aqi-left {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.aqi-dial {
  width: 160px;
  height: 160px;
  filter: drop-shadow(0 0 20px rgba(0, 0, 0, 0.3));
}

.aqi-track {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 10;
  stroke-linecap: round;
}

.aqi-fill {
  fill: none;
  stroke-width: 10;
  stroke-linecap: round;
  transition:
    stroke-dasharray 1.4s cubic-bezier(0.4, 0, 0.2, 1),
    stroke 0.5s ease;
}

.aqi-number {
  font-family: "Playfair Display", serif;
  font-size: 36px;
  font-weight: 700;
  text-anchor: middle;
  dominant-baseline: middle;
}
.aqi-label-text {
  font-size: 11px;
  font-weight: 600;
  text-anchor: middle;
  dominant-baseline: middle;
  text-transform: uppercase;
  letter-spacing: 2px;
}
.aqi-category-text {
  font-size: 10px;
  font-weight: 500;
  text-anchor: middle;
  dominant-baseline: middle;
}

.aqi-right {
  flex: 1;
  min-width: 0;
}

.aqi-right h3 {
  font-family: "Playfair Display", serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--title);
  margin-bottom: 4px;
}

.aqi-range-info {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  font-weight: 500;
}

.aqi-pollutants {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pollutant-item {
  display: grid;
  grid-template-columns: 42px 1fr 80px;
  align-items: center;
  gap: 10px;
}

.pollutant-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pollutant-bar {
  height: 5px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 3px;
  overflow: hidden;
}

.pollutant-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  width: 0;
}

.pollutant-value {
  font-size: 0.75rem;
  color: var(--text);
  font-weight: 600;
  text-align: right;
}

/* ==========================================================
   15. SECTION SUBTITLES
   ========================================================== */
.section-subtitle {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--title);
  text-align: center;
  margin-bottom: 22px;
  letter-spacing: -0.02em;
  position: relative;
  display: inline-block;
  width: 100%;
}
.section-subtitle::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 2px;
  margin: 8px auto 0;
  box-shadow: 0 0 12px var(--accent-glow);
}

/* ==========================================================
   16. INTERACTIVE TEMPERATURE CHART
   ========================================================== */
.chart-container {
  position: relative;
  height: 230px;
  border-radius: var(--radius-xl);
  margin-bottom: 24px;
  overflow: hidden;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.chart-legend {
  position: absolute;
  top: 14px;
  right: 18px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 5;
  pointer-events: none;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

.legend-line {
  width: 20px;
  height: 2.5px;
  border-radius: 2px;
}
.temp-line {
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
}

.legend-bar {
  width: 12px;
  height: 10px;
  border-radius: 3px;
}
.rain-bar {
  background: rgba(96, 165, 250, 0.4);
}

#tempChart {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

.chart-tooltip {
  position: absolute;
  background: rgba(10, 16, 26, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 10px 14px;
  pointer-events: none;
  z-index: 10;
  min-width: 110px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  transition: opacity 0.15s;
}

.tooltip-time {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}
.tooltip-temp {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  font-family: "Playfair Display", serif;
  line-height: 1;
}
.tooltip-rain {
  font-size: 0.76rem;
  color: #60a5fa;
  font-weight: 500;
  margin-top: 3px;
}
.tooltip-cond {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ==========================================================
   17. 12-HOUR HOURLY CARDS
   ========================================================== */
.hourly-container {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  margin-bottom: 48px;
}

.hourly-card {
  border-radius: var(--radius-lg);
  padding: 22px 12px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: var(--spring);
}

.hourly-card:hover {
  transform: translateY(-6px) scale(1.03);
  border-color: var(--accent);
  box-shadow:
    var(--card-shadow),
    0 0 24px var(--accent-glow);
}

.hourly-card .time {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.hourly-card .icon {
  font-size: 2.4rem;
  line-height: 1;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.2));
}
.hourly-card .temp {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
}
.hourly-card .rain-chance {
  font-size: 0.75rem;
  color: #60a5fa;
  font-weight: 500;
}

/* ==========================================================
   18. 3-DAY FORECAST
   ========================================================== */
.forecast-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.forecast-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 340px;
  transition: var(--spring);
}

.forecast-card:hover {
  transform: translateY(-8px) scale(1.01);
  border-color: var(--accent);
  box-shadow:
    var(--card-shadow),
    0 16px 40px var(--accent-glow);
}

.card-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--card-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.day-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--title);
}
.card-date {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.card-status {
  padding: 28px 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 10px;
}
.card-status .large-icon {
  font-size: 4.5rem;
}

.condition-desc {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  text-align: center;
}

.card-metrics-footer {
  background: var(--metric-bg);
  border-top: 1px solid var(--card-border);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 16px 10px;
  gap: 8px;
}

.footer-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}
.footer-label {
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--label);
  font-weight: 600;
}
.footer-value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.high-temp {
  color: var(--high-temp);
}
.low-temp {
  color: var(--low-temp);
}

/* ==========================================================
   19. FOOTER
   ========================================================== */
.site-footer {
  position: relative;
  z-index: 1;
  background: var(--footer-bg);
  border-top: 1px solid var(--footer-border);
  backdrop-filter: blur(24px);
  padding: 28px 24px;
  text-align: center;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-copy {
  font-size: 0.9rem;
  color: var(--text-muted);
}
.footer-tagline {
  font-size: 0.78rem;
  color: var(--label);
}

/* ==========================================================
   20. ANIMATIONS & KEYFRAMES
   ========================================================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card-animate {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.55s cubic-bezier(0.4, 0, 0.2, 1),
    transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-animate.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes pulseIcon {
  0%,
  100% {
    transform: scale(1);
    filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.2));
  }
  50% {
    transform: scale(1.07);
    filter: drop-shadow(0 14px 36px rgba(79, 195, 247, 0.38));
  }
}

@keyframes spinRing {
  to {
    transform: rotate(360deg);
  }
}

@keyframes sunPulse {
  from {
    transform: scale(0.88);
    box-shadow: 0 0 14px rgba(255, 193, 7, 0.4);
  }
  to {
    transform: scale(1.14);
    box-shadow:
      0 0 36px rgba(255, 193, 7, 0.78),
      0 0 64px rgba(255, 193, 7, 0.26);
  }
}

@keyframes cloudBounce {
  from {
    transform: translate(0, 0) rotate(-5deg);
  }
  to {
    transform: translate(3px, -6px) rotate(5deg);
  }
}

@keyframes dotFade {
  0%,
  80%,
  100% {
    opacity: 0;
  }
  40% {
    opacity: 1;
  }
}

@keyframes blobFloat1 {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(70px, -50px) scale(1.1);
  }
  66% {
    transform: translate(-30px, 35px) scale(0.95);
  }
}

@keyframes blobFloat2 {
  0%,
  100% {
    transform: translate(0, 0) scale(1) rotate(0deg);
  }
  50% {
    transform: translate(-60px, 70px) scale(1.12) rotate(18deg);
  }
}

@keyframes blobFloat3 {
  0%,
  100% {
    transform: translate(0, 0) scale(0.95);
  }
  40% {
    transform: translate(45px, -35px) scale(1.06);
  }
  70% {
    transform: translate(-22px, 22px) scale(1);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes rippleAnim {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

@keyframes alertPulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.6;
  }
  50% {
    transform: scale(1.4);
    opacity: 0;
  }
}

@keyframes aqi-spin-in {
  from {
    stroke-dasharray: 0 377;
  }
}

/* ==========================================================
   21. RESPONSIVE — TABLET
   ========================================================== */
@media (max-width: 1024px) {
  .forecast-container {
    grid-template-columns: repeat(3, 1fr);
  }
  .hourly-container {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 900px) {
  .forecast-row {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 36px 28px;
  }
  .temp-col {
    align-items: center;
  }
  .sun-info {
    flex-direction: row;
    justify-content: center;
    gap: 28px;
  }
  .icon-col {
    order: -1;
  }
  .metrics-grid {
    max-width: 380px;
    margin: 0 auto;
  }
  .forecast-container {
    grid-template-columns: repeat(2, 1fr);
  }
  .hourly-container {
    grid-template-columns: repeat(4, 1fr);
  }
  .temperature-value {
    font-size: 4.5rem;
  }
  .main-title {
    font-size: 1.9rem;
  }
  .large-icon {
    font-size: 7rem;
  }
  .aqi-section {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }
  .aqi-left {
    align-self: center;
  }
  .chart-container {
    height: 200px;
  }
}

/* ==========================================================
   22. RESPONSIVE — MOBILE
   ========================================================== */
@media (max-width: 680px) {
  .top-nav {
    padding: 12px 16px;
    gap: 10px;
  }
  .brand-name {
    font-size: 1.1rem;
  }
  .search-wrapper {
    min-width: 100%;
    order: 3;
  }
  .nav-controls {
    gap: 8px;
  }
  .unit-btn {
    padding: 6px 9px;
    font-size: 0.75rem;
  }
  .loc-btn span {
    display: none;
  }

  #mainContent {
    padding: 24px 16px 56px;
  }

  .temperature-value {
    font-size: 3.8rem;
  }
  .main-title {
    font-size: 1.6rem;
  }
  .large-icon {
    font-size: 5.5rem;
  }
  .condition-text {
    font-size: 1rem;
  }
  .forecast-row {
    padding: 28px 20px;
    gap: 22px;
  }

  .hourly-container {
    grid-template-columns: repeat(3, 1fr);
  }
  .forecast-container {
    grid-template-columns: 1fr 1fr;
  }

  .section-subtitle {
    font-size: 1.4rem;
  }
  .chart-container {
    height: 180px;
  }

  .aqi-section {
    padding: 24px 20px;
  }
  .aqi-dial {
    width: 130px;
    height: 130px;
  }
  .aqi-number {
    font-size: 28px;
  }
  .pollutant-item {
    grid-template-columns: 36px 1fr 70px;
  }
  .aqi-right h3 {
    font-size: 1.2rem;
  }
}

@media (max-width: 480px) {
  .forecast-container {
    grid-template-columns: 1fr;
  }
  .hourly-container {
    grid-template-columns: repeat(2, 1fr);
  }
  .temperature-value {
    font-size: 3.2rem;
  }
  .chart-container {
    height: 160px;
  }
}

/* ==========================================================
   23. ACCESSIBILITY — FOCUS STYLES
   ========================================================== */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}
button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ==========================================================
   24. SCROLLBAR & SELECTION
   ========================================================== */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

::selection {
  background: var(--accent-glow);
  color: var(--accent);
}

/* ==========================================================
   25. AMBIENT SOUNDSCAPE CONTROLS
   ========================================================== */
.sound-toggle-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.sound-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--card-border);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text);
  font-size: 1.1rem;
  transition: var(--spring);
  position: relative;
  overflow: hidden;
}

.sound-btn:hover {
  transform: scale(1.06);
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 0 16px var(--accent-glow);
}

.sound-btn.active {
  border-color: #38bdf8;
  background: rgba(56, 189, 248, 0.18);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.4);
}

.sound-pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid #38bdf8;
  animation: soundPulseRing 2s infinite ease-out;
  pointer-events: none;
}

@keyframes soundPulseRing {
  0% {
    transform: scale(0.9);
    opacity: 0.8;
  }
  100% {
    transform: scale(1.6);
    opacity: 0;
  }
}

.sound-panel {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 290px;
  padding: 18px;
  border-radius: var(--radius-lg);
  z-index: 999;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px var(--accent-glow);
  border: 1px solid var(--card-border);
  transform-origin: top right;
  animation: popIn 0.25s var(--spring) forwards;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sound-panel.hidden {
  display: none;
}

@keyframes popIn {
  from {
    opacity: 0;
    transform: scale(0.85) translateY(-10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.sound-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 10px;
}

.sound-panel-title {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--title);
}

.sound-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.sound-badge.off {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.sound-badge.on {
  background: rgba(34, 197, 94, 0.2);
  color: #22c55e;
  border: 1px solid rgba(34, 197, 94, 0.3);
  box-shadow: 0 0 10px rgba(34, 197, 94, 0.3);
}

.sound-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.3;
  margin: 0;
}

.sound-volume-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.25);
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.sound-volume-row input[type="range"] {
  flex-grow: 1;
  accent-color: var(--accent);
  cursor: pointer;
}

.sound-presets {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.preset-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 8px 10px;
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--spring);
  text-align: left;
  display: flex;
  align-items: center;
  gap: 6px;
}

.preset-btn[data-sound="auto"] {
  grid-column: span 2;
  font-weight: 600;
}

.preset-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.preset-btn.active {
  background: rgba(56, 189, 248, 0.2);
  border-color: #38bdf8;
  color: #fff;
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.3);
}

/* ==========================================================
   26. 3D CARD PARALLAX TILT & SPECULAR GLINT
   ========================================================== */
.glass-card,
.glass-metric,
.forecast-card {
  position: relative;
  transform-style: preserve-3d;
  will-change: transform, box-shadow;
}

/* Specular light highlight overlay */
.card-glint {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(
    circle 240px at var(--glint-x, 50%) var(--glint-y, 50%),
    rgba(255, 255, 255, 0.22) 0%,
    rgba(255, 255, 255, 0.06) 40%,
    transparent 80%
  );
  opacity: var(--glint-opacity, 0);
  transition: opacity 0.35s ease;
  z-index: 20;
  mix-blend-mode: overlay;
}

/* Elevate internal content slightly during 3D tilt for true depth */
.glass-card > *,
.glass-metric > *,
.forecast-card > * {
  transform: translateZ(1px);
}