/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Plus Jakarta Sans', 'Outfit', system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

:root {
  /* Default Colors (Glassmorphic dark tokens) */
  --text-primary: hsl(0, 0%, 100%);
  --text-secondary: hsl(215, 20%, 75%);
  --text-muted: hsl(215, 16%, 55%);
  
  --card-bg: hsla(223, 47%, 10%, 0.55);
  --card-border: hsla(223, 47%, 22%, 0.45);
  --input-bg: hsla(223, 47%, 5%, 0.5);
  --input-border: hsla(223, 47%, 20%, 0.7);
  --primary: hsl(210, 90%, 55%);
  --primary-rgb: 30, 144, 255;
  --accent: hsl(45, 95%, 50%);
  
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.4);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.15);
  --glass-blur: 24px;
  
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
}

/* Light Theme (Overridden dynamically if required, keeping overall contrast) */
[data-theme="light"] {
  --text-primary: hsl(224, 71%, 4%);
  --text-secondary: hsl(220, 15%, 35%);
  --text-muted: hsl(220, 10%, 55%);
  
  --card-bg: hsla(0, 0%, 100%, 0.65);
  --card-border: hsla(220, 20%, 82%, 0.6);
  --input-bg: hsla(0, 0%, 100%, 0.85);
  --input-border: hsl(220, 20%, 80%);
  
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.08);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.03);
}

/* Dynamic Weather Background Gradients */
body {
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow-x: hidden;
  position: relative;
  transition: background 0.8s ease, color 0.4s ease;
}

body.weather-clear-day {
  background: linear-gradient(135deg, hsl(210, 80%, 12%) 0%, hsl(34, 70%, 12%) 50%, hsl(220, 50%, 6%) 100%);
}

body.weather-clear-night {
  background: linear-gradient(135deg, hsl(245, 60%, 8%) 0%, hsl(224, 71%, 3%) 100%);
}

body.weather-cloudy {
  background: linear-gradient(135deg, hsl(215, 20%, 14%) 0%, hsl(220, 15%, 8%) 100%);
}

body.weather-rainy {
  background: linear-gradient(135deg, hsl(205, 40%, 12%) 0%, hsl(222, 50%, 5%) 100%);
}

body.weather-stormy {
  background: linear-gradient(135deg, hsl(265, 45%, 10%) 0%, hsl(220, 60%, 4%) 100%);
}

body.weather-snowy {
  background: linear-gradient(135deg, hsl(210, 20%, 18%) 0%, hsl(224, 25%, 7%) 100%);
}

/* Particle Canvas Overlay */
#weather-particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
}

/* Layout App Container */
.app-container {
  width: 100%;
  max-width: 1200px;
  padding: 2rem 1.5rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  z-index: 1;
}

/* Header Component */
.app-header {
  display: grid;
  grid-template-columns: 1fr 1.5fr 1fr;
  align-items: center;
  border-bottom: 1px solid var(--card-border);
  padding-bottom: 1.5rem;
  gap: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, hsl(210, 90%, 55%) 0%, hsl(45, 95%, 50%) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 8px 16px rgba(var(--primary-rgb), 0.2);
}

.logo-icon i {
  width: 24px;
  height: 24px;
}

.logo-text h1 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.1;
}

.logo-text h1 span {
  background: linear-gradient(to right, hsl(210, 90%, 55%), hsl(45, 95%, 50%));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Search Box Autocomplete input */
.search-section {
  display: flex;
  gap: 0.5rem;
  width: 100%;
  max-width: 420px;
  justify-self: center;
}

.search-box-wrapper {
  position: relative;
  flex-grow: 1;
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--text-muted);
}

#city-search {
  width: 100%;
  padding: 0.85rem 1rem 0.85rem 2.6rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--input-border);
  background-color: var(--input-bg);
  backdrop-filter: blur(var(--glass-blur));
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  outline: none;
  transition: all 0.25s ease;
}

#city-search:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.15);
}

/* Autocomplete suggestion popups */
.autocomplete-list {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  width: 100%;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(30px);
  z-index: 1000;
  max-height: 220px;
  overflow-y: auto;
  list-style: none;
  display: block;
}

.autocomplete-list.hidden {
  display: none;
}

.autocomplete-item {
  padding: 0.75rem 1.25rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  border-bottom: 1px solid var(--card-border);
  transition: background-color 0.2s ease;
}

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

.autocomplete-item:hover {
  background-color: hsla(var(--primary-rgb), 0.15);
}

.ac-city {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.ac-country {
  font-size: 0.72rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Header button action */
.btn-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
  background-color: var(--card-bg);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-icon:hover {
  border-color: var(--primary);
  background-color: hsla(var(--primary-rgb), 0.12);
  color: var(--primary);
  transform: translateY(-1px);
}

.btn-icon i {
  width: 18px;
  height: 18px;
}

.header-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Unit Metric Toggle Styles */
.unit-toggle-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--input-bg);
  padding: 0.3rem 0.6rem;
  border-radius: 20px;
  border: 1px solid var(--input-border);
  user-select: none;
}

.unit-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: color 0.25s ease;
}

.unit-label.active {
  color: var(--text-primary);
}

.unit-toggle-pill {
  width: 38px;
  height: 20px;
  border-radius: 10px;
  background-color: var(--card-border);
  border: none;
  cursor: pointer;
  position: relative;
  outline: none;
}

.unit-toggle-ball {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--text-primary);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.unit-toggle-pill.fahrenheit .unit-toggle-ball {
  transform: translateX(18px);
}

/* Main Dashboard layout */
.app-content {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 2rem;
  align-items: start;
}

.main-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.side-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Cards configurations */
.card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.card:hover {
  border-color: hsla(var(--primary-rgb), 0.25);
}

.card-header {
  padding: 1.25rem 1.5rem 0.75rem;
  border-bottom: 1px solid var(--card-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-header h3 {
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-header h3 i {
  width: 16px;
  height: 16px;
  color: var(--primary);
}

.card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Current Weather Card specifics */
.current-weather-card {
  position: relative;
}

.card-header-weather {
  padding: 1.75rem 1.75rem 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.city-title-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

#city-name {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.btn-star {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
}

.btn-star:hover {
  transform: scale(1.15);
  color: var(--accent);
}

.btn-star.starred {
  color: var(--accent);
  fill: var(--accent);
  filter: drop-shadow(0 0 6px rgba(255, 215, 0, 0.4));
}

.btn-star i {
  width: 22px;
  height: 22px;
}

#weather-date {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-top: 0.25rem;
}

.rate-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  background: hsla(0, 0%, 100%, 0.05);
  border: 1px solid var(--card-border);
}

.rate-status span {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.status-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--primary);
  position: relative;
}

.status-pulse::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: var(--primary);
  animation: pulse 1.5s infinite ease-in-out;
  opacity: 0.6;
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(2.2); opacity: 0; }
}

.current-weather-body {
  padding: 0 1.75rem 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.temp-hero {
  display: flex;
  align-items: flex-start;
}

.temp-val {
  font-size: 5rem;
  font-weight: 800;
  line-height: 0.85;
  letter-spacing: -2px;
  background: linear-gradient(to bottom, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.temp-deg {
  font-size: 2.2rem;
  font-weight: 500;
  margin-top: 0.2rem;
  color: var(--text-secondary);
}

.weather-summary-block {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.hero-weather-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  filter: drop-shadow(0 0 15px rgba(255, 180, 0, 0.3));
}

.hero-weather-icon i {
  width: 72px;
  height: 72px;
}

.weather-text-desc h3 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.2px;
}

.weather-text-desc p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin-top: 0.15rem;
}

/* Quick Metrics grids */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.metric-item-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem;
}

.metric-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--card-border);
}

.metric-icon.feels-like { background: hsla(350, 80%, 60%, 0.12); color: hsl(350, 80%, 60%); }
.metric-icon.humidity { background: hsla(200, 80%, 55%, 0.12); color: hsl(200, 80%, 55%); }
.metric-icon.wind { background: hsla(150, 70%, 50%, 0.12); color: hsl(150, 70%, 50%); }
.metric-icon.uv { background: hsla(45, 95%, 50%, 0.12); color: hsl(45, 95%, 50%); }

.metric-icon i {
  width: 18px;
  height: 18px;
}

.metric-details {
  display: flex;
  flex-direction: column;
}

.metric-title {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.metric-value {
  font-size: 1.15rem;
  font-weight: 800;
  margin-top: 0.15rem;
}

/* Hourly Forecast slide slider */
.card-body-hourly {
  padding: 1.5rem;
  display: flex;
  gap: 1.1rem;
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
}

.card-body-hourly::-webkit-scrollbar {
  height: 5px;
}

.card-body-hourly::-webkit-scrollbar-track {
  background: transparent;
}

.card-body-hourly::-webkit-scrollbar-thumb {
  background: var(--card-border);
  border-radius: 10px;
}

.hourly-item {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  min-width: 72px;
  padding: 0.9rem 0.6rem;
  background: hsla(0, 0%, 100%, 0.02);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  text-align: center;
  transition: all 0.25s ease;
}

.hourly-item:hover {
  background: hsla(var(--primary-rgb), 0.08);
  border-color: rgba(var(--primary-rgb), 0.25);
  transform: translateY(-2px);
}

.hourly-time {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.hourly-icon {
  width: 28px;
  height: 28px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hourly-icon i {
  width: 24px;
  height: 24px;
}

.hourly-temp {
  font-size: 1rem;
  font-weight: 800;
}

/* Daily Forecast weekly lists */
.daily-forecast-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.daily-row {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1.5fr 1fr;
  align-items: center;
  padding: 0.6rem 0.5rem;
  border-radius: var(--radius-sm);
  background: hsla(0, 0%, 100%, 0.015);
  border: 1px solid var(--card-border);
  transition: all 0.2s ease;
}

.daily-row:hover {
  background: hsla(var(--primary-rgb), 0.05);
  border-color: rgba(var(--primary-rgb), 0.25);
  transform: translateX(2px);
}

.daily-day {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
}

.daily-icon {
  width: 24px;
  height: 24px;
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.daily-icon i {
  width: 20px;
  height: 20px;
}

.daily-desc {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding-right: 0.5rem;
}

.daily-temps {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  font-size: 0.9rem;
  font-weight: 700;
}

.daily-max {
  color: var(--text-primary);
}

.daily-min {
  color: var(--text-muted);
}

/* Starred Watchlist elements */
.favorites-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-height: 240px;
  overflow-y: auto;
  padding-right: 2px;
}

.favorites-container::-webkit-scrollbar {
  width: 4px;
}

.favorites-container::-webkit-scrollbar-track {
  background: transparent;
}

.favorites-container::-webkit-scrollbar-thumb {
  background: var(--card-border);
  border-radius: 10px;
}

.fav-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
  background: hsla(0, 0%, 100%, 0.02);
  cursor: pointer;
  transition: all 0.25s ease;
}

.fav-card:hover {
  transform: translateY(-1px);
  border-color: hsla(var(--primary-rgb), 0.25);
  background: hsla(var(--primary-rgb), 0.05);
}

.fav-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.fav-city {
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.fav-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.fav-data {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.fav-temp {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
}

.btn-fav-delete {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease, transform 0.2s ease;
  padding: 2px;
}

.btn-fav-delete:hover {
  color: hsl(351, 89%, 60%);
  transform: scale(1.1);
}

.btn-fav-delete i {
  width: 16px;
  height: 16px;
}

.favorites-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1rem;
  gap: 0.75rem;
}

.placeholder-icon {
  width: 32px;
  height: 32px;
  color: var(--text-muted);
  opacity: 0.6;
}

.favorites-placeholder p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
  max-width: 220px;
}

/* Footer components */
.app-footer {
  text-align: center;
  border-top: 1px solid var(--card-border);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.app-footer p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.app-footer .copyright {
  color: var(--text-muted);
  font-weight: 500;
}

/* Responsive Breakpoints design */
@media (max-width: 900px) {
  .app-header {
    grid-template-columns: 1fr 1fr;
  }
  
  .logo-text {
    display: none;
  }
  
  .search-section {
    grid-column: 1 / 3;
    grid-row: 2;
    max-width: 100%;
    justify-self: stretch;
  }
  
  .app-content {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .daily-row {
    grid-template-columns: 1fr 0.8fr 1.2fr;
  }
  
  .daily-desc {
    display: none;
  }
  
  .temp-hero {
    align-self: center;
  }
  
  .current-weather-body {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .weather-summary-block {
    flex-direction: column;
    gap: 0.5rem;
  }
}