/* styles.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

header h1 {
    color: #2c3e50;
    font-size: 2.5em;
    margin-bottom: 10px;
}

header p {
    color: #7f8c8d;
    font-size: 1.1em;
}

main {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    margin-bottom: 20px;
}

.search-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.filter-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.filter-container label {
    font-weight: bold;
    color: #2c3e50;
    font-size: 1.1em;
}

#cursoSelect {
    padding: 12px 15px;
    border: 2px solid #3498db;
    border-radius: 8px;
    font-size: 1em;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

#cursoSelect:focus {
    outline: none;
    border-color: #2980b9;
    box-shadow: 0 0 10px rgba(52, 152, 219, 0.3);
}

.buscar-btn-container {
    display: flex;
    justify-content: center;
}

.buscar-btn {
    background: linear-gradient(45deg, #3498db, #2980b9);
    color: white;
    border: none;
    padding: 12px 30px;
    font-size: 1.1em;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.buscar-btn:hover {
    background: linear-gradient(45deg, #2980b9, #21618c);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.buscar-btn:active {
    transform: translateY(0);
}

.resultado {
    min-height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.placeholder {
    text-align: center;
    color: #7f8c8d;
}

.placeholder-icon {
    font-size: 4em;
    margin-bottom: 20px;
}

.placeholder p {
    font-size: 1.1em;
    max-width: 400px;
    margin: 0 auto;
}

.horario-container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.horario-imagen {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.error {
    background: #e74c3c;
    color: white;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    margin: 20px 0;
}

footer {
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    padding: 20px;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header {
        padding: 20px;
    }
    
    header h1 {
        font-size: 2em;
    }
    
    main {
        padding: 20px;
    }
    
    .search-section {
        gap: 15px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.5em;
    }
    
    .buscar-btn {
        padding: 10px 20px;
        font-size: 1em;
    }
}