/* CSS Variables for theming */
:root {
  /* Colors */
  --primary-color: #5372f0;
  --primary-light: #6c8eff;
  --primary-dark: #3a57d2;
  --text-light: #ffffff;
  --text-dark: #333333;
  --text-muted: #9ca3af;
  --bg-light: #f5f7fb;
  --bg-dark: #1a1e2e;
  --card-bg-light: #ffffff;
  --card-bg-dark: #252b3d;
  --border-light: #e2e8f0;
  --border-dark: #394056;
  --shadow-light: 0 8px 30px rgba(0, 0, 0, 0.1);
  --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.3);

  /* Weather Theme Colors */
  --sunny-gradient: linear-gradient(135deg, #ff8c39, #f56036);
  --cloudy-gradient: linear-gradient(135deg, #7a8eaa, #5a6882);
  --rainy-gradient: linear-gradient(135deg, #4b79a1, #283e51);
  --snowy-gradient: linear-gradient(135deg, #9cbbde, #6d8eb8);
  --thunderstorm-gradient: linear-gradient(135deg, #485563, #29323c);
  --default-gradient: linear-gradient(135deg, #5372f0, #3a57d2);

  /* Typography */
  --font-heading: "Montserrat", sans-serif;
  --font-body: "Poppins", sans-serif;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 999px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Dark theme colors */
.dark-theme {
  --primary-color: #6c8eff;
  --text-light: #ffffff;
  --text-dark: #e2e8f0;
  --text-muted: #8a95b2;
  --bg-light: #1a1e2e;
  --bg-dark: #121829;
  --card-bg-light: #252b3d;
  --card-bg-dark: #1a1e2e;
  --border-light: #394056;
  --border-dark: #4b5472;
  --shadow-light: 0 8px 30px rgba(0, 0, 0, 0.3);
  --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.5);
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
  transition: background-color var(--transition-normal),
    color var(--transition-normal);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

.app-container {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: var(--spacing-xl);
}

/* Weather App Container */
.weather-app {
  width: 100%;
  max-width: 1000px;
  background-color: var(--card-bg-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-light);
  overflow: hidden;
  transition: background-color var(--transition-normal),
    box-shadow var(--transition-normal);
}

/* App Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-xl);
  background-color: var(--primary-color);
  color: var(--text-light);
  transition: background-color var(--transition-normal);
}

.app-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.app-title i {
  font-size: 1.8rem;
}

.app-title h1 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.5rem;
  margin: 0;
  background: none;
  padding: 0;
}

.theme-toggle {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: var(--text-light);
  font-size: 1.2rem;
  padding: var(--spacing-sm);
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  transition: background-color var(--transition-fast);
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Search Container */
.search-container {
  padding: var(--spacing-lg) var(--spacing-xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.search-box {
  display: flex;
  align-items: center;
  background-color: var(--bg-light);
  border-radius: var(--radius-full);
  padding: 0 var(--spacing-md);
  border: 1px solid var(--border-light);
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.search-box:focus-within {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(83, 114, 240, 0.2);
}

.search-box i {
  color: var(--text-muted);
  font-size: 1.2rem;
}

.search-box input {
  flex: 1;
  border: none;
  padding: var(--spacing-md);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-dark);
  background: transparent;
  outline: none;
}

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

.search-btn {
  background-color: var(--primary-color);
  border: none;
  border-radius: var(--radius-full);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color var(--transition-fast);
  margin-left: var(--spacing-sm);
}

.search-btn i {
  color: var(--text-light);
}

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

.location-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  background-color: var(--bg-light);
  color: var(--text-dark);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  padding: var(--spacing-md) var(--spacing-lg);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--transition-fast),
    border-color var(--transition-fast);
}

.location-btn:hover {
  background-color: var(--border-light);
}

/* Search History */
.search-history {
  padding: 0 var(--spacing-xl) var(--spacing-lg);
}

.search-history h3 {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
}

.history-items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.history-item {
  background-color: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.85rem;
  color: var(--text-dark);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.history-item:hover {
  background-color: var(--border-light);
}

/* Weather Content */
.weather-content {
  padding: 0 var(--spacing-xl) var(--spacing-xl);
  position: relative;
}

/* Loading Indicator */
.loading-container {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xxl) 0;
  color: var(--text-muted);
}

.loader {
  width: 48px;
  height: 48px;
  border: 5px solid var(--primary-light);
  border-bottom-color: transparent;
  border-radius: 50%;
  display: inline-block;
  box-sizing: border-box;
  animation: rotation 1s linear infinite;
  margin-bottom: var(--spacing-md);
}

@keyframes rotation {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Error Container */
.error-container {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xxl) 0;
  color: #e53e3e;
  text-align: center;
}

.error-container i {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

/* Weather Data */
.weather-data-container {
  display: none;
}

.current-weather {
  background: var(--default-gradient);
  border-radius: var(--radius-lg);
  color: var(--text-light);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-light);
  transition: background var(--transition-normal);
}

.weather-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-lg);
}

.location h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.location p {
  font-size: 0.9rem;
  opacity: 0.8;
}

.weather-icon-large {
  font-size: 4rem;
}

.temperature-container {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--spacing-xl);
}

.temperature h1 {
  font-family: var(--font-heading);
  font-size: 4rem;
  font-weight: 600;
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.temperature p {
  font-size: 1.2rem;
  opacity: 0.9;
  text-transform: capitalize;
}

.feels-like {
  font-size: 0.9rem;
  opacity: 0.8;
}

.weather-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-lg);
}

.detail-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.detail-item i {
  font-size: 1.5rem;
  opacity: 0.8;
}

.detail-info {
  display: flex;
  flex-direction: column;
}

.detail-label {
  font-size: 0.85rem;
  opacity: 0.8;
}

.detail-value {
  font-weight: 500;
}

/* Forecast Section */
.forecast-container {
  margin-bottom: var(--spacing-lg);
}

.forecast-container h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin-bottom: var(--spacing-md);
  color: var(--text-dark);
}

.forecast-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--spacing-md);
}

.forecast-item {
  background-color: var(--bg-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  text-align: center;
  transition: transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

.forecast-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-light);
}

.forecast-day {
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--text-dark);
}

.forecast-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-sm);
}

.forecast-icon {
  font-size: 2rem;
  margin: var(--spacing-sm) 0;
  color: var(--primary-color);
}

.forecast-temp {
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  color: var(--text-dark);
}

.forecast-description {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: capitalize;
}

/* Footer */
footer {
  text-align: center;
  padding: var(--spacing-lg);
  color: var(--text-muted);
  font-size: 0.9rem;
}

footer a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

footer a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

footer i {
  color: #e53e3e;
}

/* Weather theme modifiers */
.weather-theme-clear {
  background: var(--sunny-gradient);
}

.weather-theme-clouds {
  background: var(--cloudy-gradient);
}

.weather-theme-rain {
  background: var(--rainy-gradient);
}

.weather-theme-snow {
  background: var(--snowy-gradient);
}

.weather-theme-thunderstorm {
  background: var(--thunderstorm-gradient);
}

/* Responsive Design */
@media (max-width: 768px) {
  .app-container {
    padding: var(--spacing-md);
  }

  .weather-app {
    border-radius: var(--radius-md);
  }

  .temperature-container {
    flex-direction: column;
    align-items: flex-start;
  }

  .temperature h1 {
    font-size: 3rem;
  }

  .forecast-items {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }
}

@media (max-width: 480px) {
  .app-header {
    padding: var(--spacing-md);
  }

  .search-container,
  .search-history {
    padding: var(--spacing-md);
  }

  .search-box input {
    padding: var(--spacing-md);
    font-size: 0.8rem;
  }

  .search-btn {
    width: 30px;
    height: 30px;
    margin-left: 0;
  }

  .location-btn {
    padding: var(--spacing-md);
    justify-content: center;
  }

  .weather-content {
    padding: 0 var(--spacing-md) var(--spacing-md);
  }

  .forecast-items {
    grid-template-columns: 1fr 1fr;
  }

  .location h2 {
    font-size: 1.5rem;
  }

  .temperature h1 {
    font-size: 2.5rem;
  }

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