:root {
    --background-color: #f0f8ff; /* AliceBlue */
    --text-color: #333;
    --card-bg-color: #ffffff;
    --card-border-color: #ddd;
    --weather-text-color: #007bff;
    --comment-text-color: #555;
    --error-color: #d9534f;
}

[data-theme="dark"] {
    --background-color: #2c3e50; /* Dark Blue */
    --text-color: #ecf0f1; /* Light Gray */
    --card-bg-color: #34495e; /* Lighter Dark Blue */
    --card-border-color: #555;
    --weather-text-color: #58a6ff; /* Light Blue */
    --comment-text-color: #bdc3c7; /* Lighter Gray */
    --error-color: #e74c3c;
}

body {
    font-family: sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    min-height: 100vh;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    padding: 20px;
    padding-top: 80px;
    box-sizing: border-box;
}

#theme-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 10px;
    cursor: pointer;
    border-radius: 5px;
    border: 1px solid var(--text-color);
    background-color: var(--background-color);
    color: var(--text-color);
}

#weather-app {
    width: 100%;
    max-width: 900px;
    text-align: center;
}

#weather-display h2 {
    font-size: 2rem;
    margin-bottom: 0;
}

#weather-display .weather-text {
    font-weight: bold;
    color: var(--weather-text-color);
}

#weather-display .weather-comment {
    font-size: 1.2rem;
    color: var(--comment-text-color);
    margin-top: 10px;
    margin-bottom: 40px;
}

#recommendation-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.rec-card {
    background-color: var(--card-bg-color);
    border: 1px solid var(--card-border-color);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    flex-basis: 250px;
    flex-grow: 1;
    transition: transform 0.2s, box-shadow 0.2s;
}

.rec-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.12);
}

.rec-card h3 {
    margin-top: 0;
    font-size: 1.5rem;
    border-bottom: 2px solid var(--weather-text-color);
    padding-bottom: 10px;
    margin-bottom: 15px;
}

.rec-card p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 0;
}

.error-message {
    color: var(--error-color);
    font-size: 1.2rem;
    padding: 20px;
    border: 1px solid var(--error-color);
    border-radius: 8px;
    background-color: rgba(217, 83, 79, 0.1);
}