/**
 * Sistema de Registro Educativo
 * Estilos principales
 */

/* ==========================================
   RESET Y GENERALES
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-image: url(fondo\ gt.jpg);
    background-repeat: no-repeat ;
    background-position: center;
    background-size: cover;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

/* ==========================================
   CONTAINER PRINCIPAL
   ========================================== */
.container {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    max-width: 600px;
    width: 100%;
    padding: 40px;
    animation: slideIn 0.5s ease;
    max-height: 90vh;
    overflow-y: auto;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================
   HEADER
   ========================================== */
.header {
    text-align: center;
    margin-bottom: 30px;
}

.header h1 {
    color: #515151;
    font-size: 28px;
    margin-bottom: 10px;
     display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.header p {
    color: #666;
    font-size: 14px;
}

#logo{
    height: 59px;
    width: 66px;
}
/* ==========================================
   VISTAS
   ========================================== */
.view {
    display: none;
}

.view.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.view h2 {
    margin-bottom: 20px;
    color: #333;
    font-size: 24px;
}

.view h3 {
    margin-bottom: 15px;
    color: #333;
    font-size: 18px;
}

/* ==========================================
   OPTION CARDS
   ========================================== */
.option-card {
    background-color: #515151;
    color: white;
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.option-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.option-card h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: white;
}

.option-card p {
    font-size: 14px;
    opacity: 0.9;
}

.option-card.admin-card {
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
}

/* ==========================================
   INFO BOX
   ========================================== */
.info-box {
    background: #e0e7ff;
    border-left: 4px solid #515151;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.info-box p {
    color: #333;
    font-size: 14px;
    line-height: 1.5;
    margin: 5px 0;
}

/* ==========================================
   METHOD SELECTION
   ========================================== */
.method-selection {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 15px;
}

.method-option {
    display: flex;
    align-items: center;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.method-option:hover {
    border-color: #515151;
    background: #f8f9fa;
}

.method-option input[type="radio"] {
    margin-right: 15px;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.method-option input[type="radio"]:checked + .method-content {
    color: #515151;
}

.method-content strong {
    display: block;
    margin-bottom: 5px;
    font-size: 16px;
}

.method-content p {
    margin: 0;
    font-size: 13px;
    color: #666;
}

/* ==========================================
   MASSIVE UPLOAD STEPS
   ========================================== */
.massive-steps {
    margin: 20px 0;
}

.step-card {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    border-left: 4px solid #515151;
}

.step-card h3 {
    color: #515151;
    margin-bottom: 10px;
    font-size: 18px;
}

.step-card p {
    color: #666;
    margin-bottom: 10px;
    font-size: 14px;
}

.step-card ul {
    margin: 10px 0;
    padding-left: 20px;
}

.step-card ul li {
    color: #666;
    font-size: 14px;
    margin: 5px 0;
}

.file-input {
    width: 100%;
    padding: 12px;
    border: 2px dashed #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: border 0.3s ease;
}

.file-input:hover {
    border-color: #515151;
}

/* ==========================================
   FORMULARIOS
   ========================================== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    color: #333;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: border 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #515151;
}

.form-group input::placeholder {
    color: #999;
}

/* ==========================================
   RADIO GROUPS
   ========================================== */
.radio-group {
    display: flex;
    gap: 20px;
    margin-top: 10px;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: normal;
}

.radio-group input[type="radio"] {
    width: auto;
    cursor: pointer;
}

/* ==========================================
   BOTONES
   ========================================== */
.btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, #515151 0%, #4089d7 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #e0e0e0;
    color: #333;
}

.btn-secondary:hover {
    background: #d0d0d0;
}

.btn-success {
    background: #e2a0d3;
    color: white;
}

.btn-success:hover {
    background: #059669;
}

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.validate-btn {
    background: #e2a0d3;
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    width: auto;
    min-width: 100px;
    white-space: nowrap;
}

.validate-btn:hover {
    background: #059669;
}

/* ==========================================
   COLEGIOS (DOCENTE)
   ========================================== */
.schools-container {
    border: 2px dashed #e0e0e0;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    min-height: 100px;
}

.schools-container:empty::before {
    content: 'No hay colegios agregados. Haz clic en "Agregar Colegio"';
    color: #999;
    font-size: 14px;
    display: block;
    text-align: center;
}

.school-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    position: relative;
}

.school-item .remove-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #ef4444;
    color: white;
    border: none;
    border-radius: 50%;
    width: 25px;
    height: 25px;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    transition: all 0.3s ease;
}

.school-item .remove-btn:hover {
    background: #dc2626;
    transform: scale(1.1);
}

/* ==========================================
   MENSAJES
   ========================================== */
.message {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 500;
    font-size: 14px;
}

.message.success {
    background: #fce4f0;
    color: #8b5a8b;
    border: 2px solid #e2a0d3;
}

.message.error {
    background: #fee2e2;
    color: #991b1b;
    border: 2px solid #ef4444;
}

.message.info {
    background: #dbeafe;
    color: #1e40af;
    border: 2px solid #3b82f6;
}

/* ==========================================
   CÓDIGO DE INVITACIÓN
   ========================================== */
.code-display {
    background: #f0f4ff;
    border: 2px solid #515151;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    margin: 20px 0;
}

.code-display .code {
    font-size: 32px;
    font-weight: bold;
    color: #515151;
    letter-spacing: 3px;
    margin: 15px 0;
    font-family: 'Courier New', monospace;
}

.code-input-group {
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

.code-input-group .form-group {
    flex: 1;
    margin-bottom: 0;
}

.code-input-group .validate-btn {
    flex-shrink: 0;
}

/* ==========================================
   DIVIDER
   ========================================== */
.divider {
    height: 1px;
    background: #e0e0e0;
    margin: 30px 0;
}

/* ==========================================
   UTILIDADES
   ========================================== */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

/* ==========================================
   PANEL ADMIN
   ========================================== */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 30px;
}

.stat-card {
    background: linear-gradient(135deg, #515151 0%, #4089d7 100%);
    color: white;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
}

.stat-card h3 {
    font-size: 32px;
    margin-bottom: 5px;
    color: white;
}

.stat-card p {
    font-size: 14px;
    opacity: 0.9;
}

/* ==========================================
   FILTROS
   ========================================== */
.filter-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 10px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    background: white;
}

.filter-tab:hover {
    border-color: #515151;
}

.filter-tab.active {
    background: #515151;
    color: white;
    border-color: #515151;
}

/* ==========================================
   BÚSQUEDA
   ========================================== */
.search-box {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    font-family: inherit;
}

.search-box:focus {
    outline: none;
    border-color: #515151;
}

/* ==========================================
   TARJETAS DE DOCENTE
   ========================================== */
.teacher-card {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
    border-left: 4px solid #515151;
}

.teacher-card h4 {
    color: #333;
    margin-bottom: 10px;
    font-size: 18px;
}

.teacher-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 15px;
}

.info-item {
    font-size: 13px;
    color: #666;
}

.info-item strong {
    color: #333;
    display: block;
    margin-bottom: 3px;
}

.teacher-schools {
    background: white;
    padding: 10px;
    border-radius: 6px;
    margin-top: 10px;
    font-size: 13px;
}

/* ==========================================
   TARJETAS DE ALUMNO
   ========================================== */
.student-card {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
    border-left: 4px solid #515151;
}

.student-card.unassigned {
    border-left-color: #f59e0b;
    background: #fffbeb;
}

.student-card.particular {
    border-left-color: #8b5cf6;
}

.student-card h4 {
    color: #333;
    margin-bottom: 10px;
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.badge {
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.badge.warning {
    background: #fef3c7;
    color: #92400e;
}

.badge.info {
    background: #ddd6fe;
    color: #5b21b6;
}

.student-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 15px;
}

.student-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.student-actions select {
    flex: 1;
    padding: 8px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 13px;
}

.student-actions button {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s ease;
}

/* ==========================================
   LOADING
   ========================================== */
.loading {
    text-align: center;
    padding: 40px;
    color: #666;
}

.loading::after {
    content: '...';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

/* ==========================================
   SCROLLBAR
   ========================================== */
.container::-webkit-scrollbar {
    width: 8px;
}

.container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.container::-webkit-scrollbar-thumb {
    background: #515151;
    border-radius: 10px;
}

.container::-webkit-scrollbar-thumb:hover {
    background: #3a76c2;
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 768px) {
    .container {
        padding: 30px 20px;
        max-height: 95vh;
    }

    .header h1 {
        font-size: 24px;
    }

    .admin-stats {
        grid-template-columns: 1fr;
    }

    .teacher-info,
    .student-info {
        grid-template-columns: 1fr;
    }

    .filter-tabs {
        flex-direction: column;
    }

    .filter-tab {
        width: 100%;
    }

    .code-display .code {
        font-size: 24px;
    }

    .student-actions {
        flex-direction: column;
    }

    /* En móvil, el código y botón van apilados */
    .code-input-group {
        flex-direction: column;
        align-items: stretch;
    }

    .code-input-group .form-group {
        width: 100%;
    }

    .code-input-group .validate-btn {
        width: 100%;
    }

    .method-selection {
        gap: 10px;
    }

    .method-option {
        padding: 12px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 20px 15px;
    }

    .option-card {
        padding: 20px;
    }

    .option-card h3 {
        font-size: 18px;
    }

    .step-card {
        padding: 15px;
    }
}