/* ===============================
   Variables (Light & Dark Theme)
================================ */
:root {
  --background-color-light: #f6f9fc;
  --background-color-dark: #0d1117;
  --text-color-light: #1e293b;
  --text-color-dark: #f1f5f9;
  --accent-color: #2e7d32;
  --accent-hover: #1b5e20;
  --accent-dark: #58a6ff;

  --card-bg-light: rgba(255, 255, 255, 0.85);
  --card-bg-dark: rgba(22, 27, 34, 0.9);
}

/* ===============================
   Global Styles
================================ */
body {
  font-family: "Roboto", sans-serif;
  background-image: url("day-sky.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--text-color-light);
  margin: 0;
  padding: 0;
  transition: background 0.8s ease, color 0.5s ease;
}

body.dark {
  background-image: url("night-sky.jpg");
  color: var(--text-color-dark);
}

/* ===============================
   Theme Toggle Button
================================ */
.theme-toggle {
  text-align: right;
  padding: 15px 25px;
}

#theme-btn {
  background-color: var(--accent-color);
  color: white;
  border: none;
  padding: 10px 18px;
  border-radius: 25px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
  transition: background-color 0.4s ease, transform 0.3s ease;
}

#theme-btn:hover {
  background-color: var(--accent-hover);
  transform: scale(1.05);
}

body.dark #theme-btn {
  background-color: var(--accent-dark);
}

/* ===============================
   Weather App Container
================================ */
.weather-app {
  background: var(--card-bg-light);
  backdrop-filter: blur(10px);
  max-width: 600px;
  width: 90%;
  margin: 30px auto;
  padding: 30px;
  border-radius: 18px;
  box-shadow: 0px 8px 30px rgba(0, 0, 0, 0.1);
  transition: background 0.5s, color 0.5s;
}

body.dark .weather-app {
  background: var(--card-bg-dark);
  box-shadow: 0px 8px 30px rgba(0, 0, 0, 0.6);
}

/* ===============================
   Header (Search Form)
================================ */
header {
  padding-bottom: 25px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.search-form {
  display: flex;
  gap: 10px;
}

.search-form-input {
  background-color: #f1f3f6;
  border: none;
  border-radius: 8px;
  flex: 1;
  font-size: 16px;
  padding: 14px 18px;
}

.search-form-button {
  background-color: var(--accent-color);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 14px 18px;
  font-size: 16px;
  cursor: pointer;
  transition: 0.3s;
}

.search-form-button:hover {
  background-color: var(--accent-hover);
}

body.dark .search-form-input {
  background-color: #30363d;
  color: #f0f6fc;
}

/* ===============================
   Weather Info (City, Temp, Details)
================================ */
.weather-app-data {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 25px;
  gap: 20px;
}

.weather-app-city {
  font-size: 38px;
  margin: 0;
}

.weather-app-details {
  color: rgba(0, 0, 0, 0.6);
  font-weight: 500;
  line-height: 24px;
}

body.dark .weather-app-details {
  color: rgba(255, 255, 255, 0.7);
}

.weather-app-details strong {
  color: var(--accent-color);
}

body.dark .weather-app-details strong {
  color: var(--accent-dark);
}

.weather-app-temperature-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.weather-app-temperature {
  font-size: 88px;
  font-weight: bold;
}

.weather-app-unit {
  font-size: 28px;
  position: relative;
  top: -25px;
}

/* ===============================
   Weather Forecast
================================ */
.weather-forecast {
  display: flex;
  justify-content: space-around;
  margin-top: 30px;
  flex-wrap: wrap;
  gap: 20px;
}

.weather-forecast-date {
  text-align: center;
  font-size: 15px;
  color: rgba(39, 33, 66, 0.6);
}

.weather-forecast-temperatures {
  text-align: center;
  color: var(--accent-color);
  display: flex;
  justify-content: center;
  margin-top: 10px;
  font-size: 15px;
}

body.dark .weather-forecast-temperatures {
  color: var(--accent-dark);
}

/* ===============================
   Footer
================================ */
footer {
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  padding-top: 25px;
  text-align: center;
  font-size: 14px;
  color: rgba(0, 0, 0, 0.6);
}

body.dark footer {
  color: rgba(255, 255, 255, 0.7);
}

/* ===============================
   📱 Responsive Styles
================================ */

/* Tablets */
@media (max-width: 768px) {
  .weather-app {
    padding: 20px;
  }

  .weather-app-data {
    flex-direction: column;
    text-align: center;
  }

  .weather-app-city {
    font-size: 30px;
  }

  .weather-app-temperature {
    font-size: 70px;
  }

  .weather-app-unit {
    font-size: 24px;
    top: -15px;
  }
}

/* Small Phones */
@media (max-width: 480px) {
  .search-form {
    flex-direction: column;
  }

  .search-form-button {
    width: 100%;
  }

  .weather-app-city {
    font-size: 26px;
  }

  .weather-app-temperature {
    font-size: 55px;
  }

  .weather-app-unit {
    font-size: 20px;
  }
}