:root {
    --primary-color: #2c3e50;
    --accent-color: #27ae60;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #334155;
    --reset-color: #e74c3c;
    
    --color-excelente: #00e676;       /* Verde fuerte brilloso */
    --color-bueno: #aeea00;           /* Verde tirando a amarillo */
    --color-regular: #ffb300;         /* Amarillo tirando a naranja */
    --color-insuficiente: #f44336;     /* Rojo */
    
    --bg-excelente: #d4fcd6;
    --bg-bueno: #f4fcd4;
    --bg-regular: #fff1d4;
    --bg-insuficiente: #fcd4d4;
}

*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    padding: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

/* Contenedores Base */
.container, .card-box {
    width: 100%;
    max-width: 700px;
    background: var(--card-bg);
    padding: 16px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    margin-bottom: 16px;
}

.view-section {
    display: none;
    width: 100%;
    max-width: 700px;
}

.view-section.active {
    display: block;
}

/* Pantalla de Inicio / Menú de Bienvenida */
.welcome-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 600px;
    text-align: center;
    padding: 40px 16px;
    margin-top: 10vh;
}

.welcome-container h1 {
    color: var(--primary-color);
    margin-bottom: 4px;
    font-size: 2rem;
}

.welcome-container p {
    color: #64748b;
    margin-bottom: 30px;
}

.menu-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    width: 100%;
}

.menu-card {
    background: var(--card-bg);
    border: 2px solid #e2e8f0;
    border-radius: 16px;
    padding: 24px;
    cursor: pointer;
    text-align: center;
    transition: all 0.25s ease;
}

.menu-card:hover, .menu-card:active {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.08);
}

.btn-calificar:hover, .btn-calificar:active { border-color: var(--accent-color); }
.btn-consultar:hover, .btn-consultar:active { border-color: #3b82f6; }

.menu-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.menu-card h3 {
    margin: 0 0 6px 0;
    color: var(--primary-color);
    font-size: 1.25rem;
}

.menu-card small {
    color: #64748b;
    font-size: 0.88rem;
}

/* Cabeceras de Sección e Interfaz */
.section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    border-bottom: 1px solid #f1f5f9;
    padding-bottom: 12px;
}

.section-header h2 {
    margin: 0;
    font-size: 1.3rem;
    color: var(--primary-color);
}

#subTitle {
    background: #f1f5f9;
    padding: 10px;
    border-radius: 8px;
    font-size: 0.9rem;
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 16px;
}

/* Formularios y Selectores */
.form-group {
    margin-bottom: 16px;
    width: 100%;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 0.9rem;
}

select {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    background-color: #fff;
    color: var(--text-main);
    transition: border-color 0.2s;
    outline: none;
}

select:focus {
    border-color: #3b82f6;
}

select:disabled {
    background-color: #f1f5f9;
    color: #94a3b8;
    cursor: not-allowed;
}

/* Botones */
.btn-primary, .btn-back-menu, .btn-navigation, .btn-reset {
    font-family: inherit;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    text-align: center;
}

.btn-primary {
    width: 100%;
    background-color: var(--accent-color);
    color: white;
    padding: 12px;
    font-size: 1rem;
}

.btn-primary:disabled {
    background-color: #cbd5e1;
    cursor: not-allowed;
}

.btn-back-menu, .btn-navigation {
    background-color: #e2e8f0;
    color: var(--primary-color);
    padding: 8px 14px;
    font-size: 0.9rem;
}

.btn-reset {
    background-color: var(--reset-color);
    color: white;
    padding: 12px;
}

/* Tarjetas de Criterios (Rúbrica) */
.criterion-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 12px;
    transition: background-color 0.3s, border-color 0.3s;
}

.criterion-card label {
    display: block;
    font-weight: bold;
    margin-bottom: 8px;
    color: var(--primary-color);
    font-size: 0.95rem;
}

/* Colores de nivel dinámicos unificados con tonos tenues */
.excelente { background-color: var(--bg-excelente); border-color: var(--color-excelente); }
.excelente select { background-color: var(--bg-excelente); color: #000000; font-weight: bold; }

.bueno { background-color: var(--bg-bueno); border-color: var(--color-bueno); }
.bueno select { background-color: var(--bg-bueno); color: #000000; font-weight: bold; }

.regular { background-color: var(--bg-regular); border-color: var(--color-regular); }
.regular select { background-color: var(--bg-regular); color: #000000; font-weight: bold; }

.insuficiente { background-color: var(--bg-insuficiente); border-color: var(--color-insuficiente); }
.insuficiente select { background-color: var(--bg-insuficiente); color: #b71c1c; font-weight: bold; }
.slider-section input[type="range"] {
    width: 100%;
    margin: 10px 0;
}

.slider-ticks {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: #64748b;
    padding: 0 4px;
}

/* Módulo de Consulta (Tarjetas de Resultados) */
.filter-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.card-view {
    background: #ffffff;
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 12px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.03);
    border: 1px solid #e2e8f0;
}

.card-header-view {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.details-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    margin-top: 14px;
    background: #f8fafc;
    padding: 12px;
    border-radius: 8px;
    border: 1px dashed #cbd5e1;
}

.detail-item {
    font-size: 0.85rem;
    color: #475569;
}

/* Modales */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    padding: 16px;
}

.modal-content {
    background-color: white;
    border-radius: 16px;
    padding: 24px;
    width: 100%;
    max-width: 450px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.confirm-summary {
    background-color: #f8fafc;
    padding: 14px;
    border-radius: 8px;
    margin-top: 12px;
}

.score-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 1.2rem;
    margin-top: 4px;
}

.badge-perfecto { background-color: #00e676 !important; color: #000000 !important; }
.badge-alto { background-color: #aeea00 !important; color: #000000 !important; }
.badge-medio { background-color: #ffb300 !important; color: #000000 !important; }
.badge-bajo { background-color: #f44336 !important; color: #ffffff !important; }
/* Loader Spinners */
.loader-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3b82f6;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    animation: spin-loader 0.8s linear infinite;
    margin: 24px auto;
}

@keyframes spin-loader {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Animación de Éxito CSS */
.success-checkmark { width: 80px; height: 80px; margin: 0 auto; }
.success-checkmark .check-icon { width: 80px; height: 80px; position: relative; border-radius: 50%; border: 4px solid #4CAF50; }
.success-checkmark .check-icon .icon-line { height: 5px; background-color: #4CAF50; display: block; border-radius: 2px; position: absolute; z-index: 10; }
.success-checkmark .check-icon .icon-line.line-tip { width: 25px; left: 14px; top: 45px; transform: rotate(45deg); }
.success-checkmark .check-icon .icon-line.line-long { width: 47px; right: 8px; top: 38px; transform: rotate(-45deg); }

/* DISEÑO RESPONSIVO MÓVIL (PANTALLAS MEDIANAS Y GRANDES) */
@media (min-width: 480px) {
    body { padding: 24px; }
    .filter-grid { grid-template-columns: 1fr 1fr; }
    .menu-grid { grid-template-columns: 1fr 1fr; }
    .details-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }
    .welcome-container h1 { font-size: 2.5rem; }
}
/* ── Sliders individuales ── */
.slider-alumno-card { transition: background-color 0.3s, border-color 0.3s; }
.slider-alumno { accent-color: var(--accent-color); height: 6px; }
.nota-preview-val { font-size:0.95rem; font-weight:800; color:var(--primary-color); }
#baseScoreCard { background:#ffffff; border:1px solid #cbd5e1; }