/* ===== VARIABLES (se mantienen por si acaso, pero ya están en styles.css) ===== */
:root {
    --youtube-color: #ff0000;
    --youtube-hover: #cc0000;
    --powerpoint-color: #d24726;
    --powerpoint-hover: #b33e1f;
    --link-bg: rgba(255, 255, 255, 0.1);
    --link-border: rgba(255, 255, 255, 0.2);
}

/* ===== ESTILOS DE CONTENEDOR Y TÍTULOS (heredados de formularios.css) ===== */
.container {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-container);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
}

h1 {
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 2em;
}

h2 {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.4em;
    font-weight: normal;
}

.back-btn-container {
    text-align: center;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.back-btn {
    display: inline-block;
    background: #6c757d;
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: bold;
    border: none;
    cursor: pointer;
    font-size: 14px;
    min-width: 200px;
}

.back-btn:hover {
    background: #5a6268;
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== ESTILOS DE FORMULARIO ===== */
.form-group {
    margin-bottom: 25px;
    display: block;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: var(--text-primary);
}

input[type="email"],
input[type="text"],
input[type="number"],
select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    background: var(--bg-container);
    color: var(--text-primary);
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--accent-color);
}

input[readonly],
select[readonly] {
    background-color: var(--bg-card);
    color: var(--text-secondary);
    cursor: not-allowed;
}

.field-info {
    display: block;
    margin-top: 5px;
    font-size: 0.8em;
    color: var(--text-muted);
    font-style: italic;
}

#material {
    display: block;
}

/* ===== BOTÓN PRINCIPAL ===== */
.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    color: white;
    padding: 15px;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ===== ESTILOS ESPECÍFICOS DE SOLICITUD-MATERIAL ===== */
.material-links {
    margin-top: 30px;
    padding: 30px;
    background: var(--bg-card);
    border-radius: 15px;
    display: none;
    box-shadow: var(--shadow-lg);
    animation: slideDown 0.5s ease;
}

.material-links.visible {
    display: block;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.class-info {
    background: var(--bg-container);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 25px;
    border-left: 4px solid var(--accent-color);
}

.class-info h3 {
    color: var(--text-primary);
    margin-bottom: 10px;
    font-size: 1.3em;
}

.class-info p {
    color: var(--text-secondary);
    font-size: 0.95em;
    line-height: 1.5;
}

.links-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    margin-top: 20px;
}

.link-card {
    padding: 30px 20px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.link-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--link-border);
}

.link-card.youtube {
    background: linear-gradient(135deg, var(--youtube-color) 0%, var(--youtube-hover) 100%);
}

.link-card.powerpoint {
    background: linear-gradient(135deg, var(--powerpoint-color) 0%, var(--powerpoint-hover) 100%);
}

.link-card a {
    color: white;
    text-decoration: none;
    display: block;
}

.link-card .icon {
    font-size: 4em;
    margin-bottom: 15px;
}

.link-card .title {
    font-size: 1.4em;
    font-weight: bold;
    margin-bottom: 8px;
}

.link-card .subtitle {
    font-size: 0.95em;
    opacity: 0.9;
}

.link-card .hover-info {
    margin-top: 15px;
    font-size: 0.85em;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.link-card:hover .hover-info {
    opacity: 1;
}

.status-message {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
}

.status-message.success {
    background: rgba(52, 168, 83, 0.1);
    border: 2px solid var(--success-500);
    color: var(--success-500);
}

.status-message.error {
    background: rgba(234, 67, 53, 0.1);
    border: 2px solid var(--error-500);
    color: var(--error-500);
}

.status-message.info {
    background: rgba(66, 133, 244, 0.1);
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
}

#misSolicitudes {
    margin-top: 40px;
    padding: 20px;
    background: var(--bg-container);
    border-radius: 10px;
}

.inscripciones-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.inscripciones-table th {
    background: var(--accent-color);
    color: white;
    padding: 12px;
    text-align: left;
}

.inscripciones-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
}

.inscripciones-table tr:hover {
    background: var(--bg-card);
}

.material-badge {
    display: inline-flex;
    gap: 8px;
    align-items: center;
}

.material-badge a {
    color: var(--accent-color);
    text-decoration: none;
    padding: 4px 8px;
    border-radius: 4px;
    background: var(--bg-card);
    transition: all 0.3s ease;
}

.material-badge a:hover {
    background: var(--accent-color);
    color: white;
}

.action-buttons {
    margin-top: 20px;
}

.action-buttons .back-btn {
    background: var(--accent-color);
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
}

.action-buttons .back-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== FILTROS ===== */
.filtros-container {
    animation: slideDown 0.5s ease;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
    margin-bottom: 20px;
    padding: 20px;
    background: var(--bg-card);
    border-radius: 10px;
}

.filtros-container:focus-within {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.1);
}

.filtro-select {
    background: var(--bg-container);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s ease;
    padding: 12px;
    border-radius: 8px;
    width: 100%;
}

.filtro-select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.filtro-select option {
    background: var(--bg-container);
    color: var(--text-primary);
    padding: 10px;
}

.filtro-select:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: var(--bg-card);
}

.sin-clases-mensaje {
    animation: fadeIn 0.5s ease;
    border: 2px dashed var(--border-color);
    text-align: center;
    padding: 40px;
    background: var(--bg-card);
    border-radius: 10px;
    margin-top: 20px;
}

.sin-clases-mensaje h3 {
    color: var(--text-primary);
    margin-bottom: 10px;
}

.sin-clases-mensaje p {
    color: var(--text-secondary);
}

.periodo-badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 12px;
    background: var(--accent-color);
    color: white;
    font-size: 0.8em;
    margin-left: 8px;
}

/* ===== ANIMACIONES ADICIONALES ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .container {
        padding: 20px;
        margin: 10px;
    }

    .filtros-container {
        padding: 15px;
    }
    
    .filtros-container > div {
        grid-template-columns: 1fr !important;
        gap: 10px;
    }
    
    .filtro-select {
        font-size: 14px;
        padding: 10px;
    }
    
    .class-info h3 {
        font-size: 1.1em;
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .periodo-badge {
        margin-left: 0;
    }

    .links-container {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .link-card {
        padding: 20px;
    }
    
    .link-card .icon {
        font-size: 3em;
    }
    
    .link-card .title {
        font-size: 1.2em;
    }
    
    .class-info {
        padding: 15px;
    }

    .back-btn {
        width: 100%;
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 15px;
    }

    .sin-clases-mensaje {
        padding: 20px;
    }
    
    .sin-clases-mensaje h3 {
        font-size: 1.1em;
    }

    .material-links {
        padding: 20px;
    }
    
    .inscripciones-table {
        font-size: 0.9em;
    }
    
    .inscripciones-table th,
    .inscripciones-table td {
        padding: 8px;
    }
}