/* ========================================
   UNIVERSIDAD DORADOS - BOLETA DE CALIFICACIONES MENSUALES
   Diseño Elegante - Blanco, Gris y Dorado
   ======================================== */

/* ============ VARIABLES DE COLOR ============ */
:root {
    /* Paleta Universidad Dorados - Blanco, Gris y Dorado */
    --dorado-primary: #d4a853;
    --dorado-intense: #c9a227;
    --dorado-dark: #b8860b;
    --dorado-light: #e6be5a;
    --dorado-pale: #f5e6c8;
    
    /* Colores base */
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #eeeeee;
    --gray-300: #e0e0e0;
    --gray-400: #bdbdbd;
    --gray-500: #9e9e9e;
    --gray-600: #757575;
    --gray-700: #616161;
    --gray-800: #424242;
    --gray-900: #212121;
    
    /* Colores para calificaciones */
    --grade-excellent: #4caf50;
    --grade-good: #2196f3;
    --grade-regular: #ff9800;
    --grade-fail: #f44336;
    
    /* Gradientes */
    --gradient-bg: linear-gradient(135deg, #ffffff 0%, #f8f9fa 50%, #f5f5f5 100%);
    --gradient-card: linear-gradient(145deg, rgba(212, 168, 83, 0.08) 0%, rgba(212, 168, 83, 0.02) 100%);
    --gradient-header: linear-gradient(90deg, var(--dorado-dark) 0%, var(--dorado-primary) 50%, var(--dorado-light) 100%);
    --gradient-title: linear-gradient(90deg, var(--dorado-dark), var(--dorado-primary), var(--dorado-light), var(--dorado-primary), var(--dorado-dark));
    
    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-gold: 0 4px 20px rgba(212, 168, 83, 0.25);
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ============ CONTENEDOR PRINCIPAL ============ */
#boleta-mens-container {
    min-height: 100vh;
    background: var(--gradient-bg);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(212, 168, 83, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(201, 162, 39, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(184, 134, 11, 0.04) 0%, transparent 50%);
    padding: 2rem 1.5rem;
    position: relative;
}

/* ============ HEADER NAVIGATION ============ */
#boleta-mens-nav {
    margin-bottom: 2rem;
}

#boleta-mens-nav .btn-ultra-back {
    background: var(--white);
    border: 2px solid var(--dorado-primary);
    color: var(--dorado-dark);
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-weight: 600;
}

#boleta-mens-nav .btn-ultra-back:hover {
    background: var(--dorado-primary);
    color: var(--white);
    box-shadow: var(--shadow-gold);
    transform: translateX(-5px);
}

#boleta-mens-nav .btn-ultra-back svg {
    transition: var(--transition-normal);
}

#boleta-mens-nav .btn-ultra-back:hover svg {
    transform: translateX(-3px);
}

/* ============ INFO CARD ESTUDIANTE ============ */
#boleta-mens-student-info {
    background: var(--white);
    border: 1px solid rgba(212, 168, 83, 0.3);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

#boleta-mens-student-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-header);
    border-radius: 20px 20px 0 0;
}

.ultra-matricula {
    color: var(--dorado-dark);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ultra-matricula::before {
    content: '';
    width: 10px;
    height: 10px;
    background: var(--dorado-primary);
    border-radius: 2px;
    transform: rotate(45deg);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.ultra-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.ultra-info-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.ultra-info-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--gray-500);
    font-weight: 600;
}

.ultra-info-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-800);
}

/* ============ TÍTULO PRINCIPAL ============ */
#boleta-mens-title {
    text-align: center;
    margin-bottom: 2.5rem;
}

#boleta-mens-title h3 {
    font-size: clamp(1.5rem, 4vw, 2.2rem);
    font-weight: 800;
    letter-spacing: 3px;
    text-transform: uppercase;
    background: var(--gradient-title);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 4s linear infinite;
    position: relative;
    display: inline-block;
}

@keyframes shimmer {
    0% { background-position: 0% center; }
    100% { background-position: 200% center; }
}

#boleta-mens-title h3::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient-header);
    border-radius: 3px;
}

/* ============ TABLA DE CALIFICACIONES ============ */
#boleta-mens-table-wrapper {
    background: var(--white);
    border: 1px solid rgba(212, 168, 83, 0.2);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.ultra-table-scroll {
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--dorado-primary) var(--gray-100);
}

.ultra-table-scroll::-webkit-scrollbar {
    height: 10px;
}

.ultra-table-scroll::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: 5px;
}

.ultra-table-scroll::-webkit-scrollbar-thumb {
    background: linear-gradient(90deg, var(--dorado-dark), var(--dorado-primary));
    border-radius: 5px;
}

.ultra-table-scroll::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(90deg, var(--dorado-intense), var(--dorado-light));
}

.ultra-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    min-width: 1400px;
}

/* Encabezados de tabla */
.ultra-table thead tr {
    background: linear-gradient(135deg, var(--dorado-primary) 0%, var(--dorado-intense) 100%);
}

.ultra-table thead th {
    padding: 1.2rem 0.8rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--white);
    text-align: center;
    border-bottom: 3px solid var(--dorado-dark);
    white-space: nowrap;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.ultra-table thead th:first-child {
    text-align: left;
    padding-left: 1.5rem;
    min-width: 180px;
    max-width: 220px;
    white-space: normal;
    word-wrap: break-word;
}

/* Columnas de promedio bimestral */
.ultra-table thead th.prom-col {
    background: rgba(0, 0, 0, 0.15);
    font-weight: 800;
}

/* Cuerpo de tabla */
.ultra-table tbody tr {
    transition: var(--transition-normal);
    background: var(--white);
}

.ultra-table tbody tr:nth-child(even) {
    background: var(--gray-50);
}

.ultra-table tbody tr:hover {
    background: rgba(212, 168, 83, 0.1);
    transform: scale(1.005);
    box-shadow: 0 2px 12px rgba(212, 168, 83, 0.15);
}

.ultra-table tbody td {
    padding: 1rem 0.8rem;
    text-align: center;
    color: var(--gray-700);
    font-size: 0.95rem;
    font-weight: 500;
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition-fast);
}

.ultra-table tbody td:first-child {
    text-align: left;
    padding-left: 1.5rem;
    font-weight: 600;
    color: var(--gray-800);
    min-width: 180px;
    max-width: 220px;
    white-space: normal;
    word-wrap: break-word;
    line-height: 1.3;
}

/* Celdas de calificación */
.ultra-table tbody td.grade-cell {
    font-weight: 600;
    font-size: 0.9rem;
}

/* Columnas de promedio */
.ultra-table tbody td.prom-cell {
    background: rgba(212, 168, 83, 0.08);
    font-weight: 700;
    color: var(--dorado-dark);
    position: relative;
}

.ultra-table tbody td.prom-cell::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 3px;
    background: var(--dorado-primary);
}

/* Colores según calificación */
.grade-excellent {
    color: var(--grade-excellent) !important;
}

.grade-good {
    color: var(--grade-good) !important;
}

.grade-regular {
    color: var(--grade-regular) !important;
}

.grade-fail {
    color: var(--grade-fail) !important;
}

/* Observaciones */
.ultra-table tbody td.obs-cell {
    max-width: 180px;
    font-size: 0.85rem;
    color: var(--gray-600);
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============ LOADING STATE ============ */
.ultra-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 4rem;
}

.ultra-loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--dorado-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    position: relative;
}

.ultra-loading-spinner::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 3px solid transparent;
    border-top-color: var(--dorado-light);
    border-radius: 50%;
    animation: spin 1.5s linear infinite reverse;
}

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

/* ============ RESPONSIVE ============ */

/* --- Tablets y pantallas medianas (?992px) --- */
@media (max-width: 992px) {
    #boleta-mens-container {
        padding: 1.5rem 1rem;
    }

    #boleta-mens-student-info {
        padding: 1.5rem;
        border-radius: 16px;
        margin-bottom: 2rem;
    }

    .ultra-table {
        min-width: 1200px;
    }

    .ultra-table thead th,
    .ultra-table tbody td {
        padding: 0.9rem 0.6rem;
        font-size: 0.85rem;
    }

    .ultra-table tbody td.grade-cell {
        font-size: 0.82rem;
    }

    #boleta-mens-title h3 {
        letter-spacing: 2px;
    }
}

/* --- Tablets pequeñas y móviles grandes (?768px) --- */
@media (max-width: 768px) {
    #boleta-mens-container {
        padding: 1rem 0.75rem;
    }

    #boleta-mens-nav {
        margin-bottom: 1.25rem;
    }

    #boleta-mens-nav .btn-ultra-back {
        padding: 0.6rem 1.1rem;
        font-size: 0.9rem;
        border-radius: 10px;
    }

    #boleta-mens-nav .btn-ultra-back svg {
        width: 20px;
        height: 20px;
    }

    #boleta-mens-student-info {
        padding: 1.25rem;
        border-radius: 14px;
        margin-bottom: 1.5rem;
    }

    .ultra-matricula {
        font-size: 0.95rem;
    }

    .ultra-info-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .ultra-info-value {
        font-size: 1.1rem;
    }

    .ultra-info-label {
        font-size: 0.7rem;
        letter-spacing: 1.5px;
    }

    #boleta-mens-title {
        margin-bottom: 1.5rem;
    }

    #boleta-mens-title h3 {
        letter-spacing: 1px;
        font-size: clamp(1.2rem, 3.5vw, 1.8rem);
    }

    #boleta-mens-title h3::after {
        width: 60px;
        height: 2px;
        bottom: -8px;
    }

    #boleta-mens-table-wrapper {
        border-radius: 14px;
    }

    .ultra-table {
        min-width: 1000px;
    }

    .ultra-table thead th {
        padding: 0.8rem 0.45rem;
        font-size: 0.7rem;
        letter-spacing: 0.5px;
    }

    .ultra-table thead th:first-child {
        padding-left: 1rem;
        min-width: 140px;
        max-width: 180px;
    }

    .ultra-table tbody td {
        padding: 0.7rem 0.45rem;
        font-size: 0.8rem;
    }

    .ultra-table tbody td:first-child {
        padding-left: 1rem;
        min-width: 140px;
        max-width: 180px;
        font-size: 0.8rem;
    }

    .ultra-table tbody td.grade-cell {
        font-size: 0.78rem;
    }

    .ultra-table tbody td.obs-cell {
        max-width: 120px;
        font-size: 0.75rem;
    }

    .ultra-table-scroll::-webkit-scrollbar {
        height: 6px;
    }

    /* Desactivar hover transform en táctiles */
    .ultra-table tbody tr:hover {
        transform: none;
        box-shadow: none;
    }

    .ultra-loading {
        padding: 2.5rem;
    }
}

/* --- Móviles estándar (?576px) --- */
@media (max-width: 576px) {
    #boleta-mens-container {
        padding: 0.75rem 0.5rem;
    }

    #boleta-mens-nav {
        margin-bottom: 1rem;
    }

    #boleta-mens-nav .btn-ultra-back {
        padding: 0.5rem 0.9rem;
        font-size: 0.85rem;
        gap: 0.35rem;
        border-radius: 8px;
        border-width: 1.5px;
    }

    #boleta-mens-student-info {
        padding: 1rem;
        border-radius: 12px;
        margin-bottom: 1.25rem;
    }

    #boleta-mens-student-info::before {
        height: 3px;
    }

    .ultra-matricula {
        font-size: 0.85rem;
        letter-spacing: 0.5px;
        margin-bottom: 0.75rem;
    }

    .ultra-matricula::before {
        width: 8px;
        height: 8px;
    }

    .ultra-info-grid {
        gap: 0.75rem;
    }

    .ultra-info-value {
        font-size: 1rem;
    }

    .ultra-info-label {
        font-size: 0.65rem;
        letter-spacing: 1px;
    }

    #boleta-mens-title {
        margin-bottom: 1.25rem;
    }

    #boleta-mens-title h3 {
        letter-spacing: 0.5px;
        font-size: clamp(1rem, 3vw, 1.4rem);
    }

    #boleta-mens-title h3::after {
        width: 50px;
        bottom: -6px;
    }

    #boleta-mens-table-wrapper {
        border-radius: 12px;
        box-shadow: var(--shadow-md);
    }

    .ultra-table {
        min-width: 900px;
    }

    .ultra-table thead th {
        padding: 0.65rem 0.35rem;
        font-size: 0.65rem;
        letter-spacing: 0;
    }

    .ultra-table thead th:first-child {
        padding-left: 0.75rem;
        min-width: 120px;
        max-width: 150px;
    }

    .ultra-table tbody td {
        padding: 0.55rem 0.35rem;
        font-size: 0.75rem;
    }

    .ultra-table tbody td:first-child {
        padding-left: 0.75rem;
        min-width: 120px;
        max-width: 150px;
        font-size: 0.75rem;
    }

    .ultra-table tbody td.grade-cell {
        font-size: 0.72rem;
    }

    .ultra-table tbody td.prom-cell {
        font-size: 0.72rem;
    }

    .ultra-table tbody td.prom-cell::before {
        width: 2px;
    }

    .ultra-table tbody td.obs-cell {
        max-width: 100px;
        font-size: 0.68rem;
    }

    .ultra-loading {
        padding: 2rem;
    }

    .ultra-loading-spinner {
        width: 40px;
        height: 40px;
        border-width: 3px;
    }
}

/* --- Móviles pequeños (?400px) --- */
@media (max-width: 400px) {
    #boleta-mens-container {
        padding: 0.5rem 0.35rem;
    }

    #boleta-mens-nav .btn-ultra-back {
        padding: 0.4rem 0.75rem;
        font-size: 0.8rem;
        gap: 0.25rem;
    }

    #boleta-mens-nav .btn-ultra-back svg {
        width: 18px;
        height: 18px;
    }

    #boleta-mens-student-info {
        padding: 0.85rem;
        border-radius: 10px;
        margin-bottom: 1rem;
    }

    .ultra-matricula {
        font-size: 0.8rem;
        margin-bottom: 0.5rem;
    }

    .ultra-info-value {
        font-size: 0.9rem;
    }

    .ultra-info-label {
        font-size: 0.6rem;
    }

    #boleta-mens-title h3 {
        font-size: 0.95rem;
        letter-spacing: 0;
    }

    #boleta-mens-title h3::after {
        width: 40px;
    }

    #boleta-mens-table-wrapper {
        border-radius: 10px;
    }

    .ultra-table {
        min-width: 820px;
    }

    .ultra-table thead th {
        padding: 0.5rem 0.25rem;
        font-size: 0.6rem;
    }

    .ultra-table thead th:first-child {
        padding-left: 0.5rem;
        min-width: 100px;
        max-width: 130px;
    }

    .ultra-table tbody td {
        padding: 0.45rem 0.25rem;
        font-size: 0.68rem;
    }

    .ultra-table tbody td:first-child {
        padding-left: 0.5rem;
        min-width: 100px;
        max-width: 130px;
        font-size: 0.68rem;
    }

    .ultra-table tbody td.grade-cell {
        font-size: 0.65rem;
    }

    .ultra-table tbody td.prom-cell {
        font-size: 0.65rem;
    }

    .ultra-table tbody td.obs-cell {
        max-width: 80px;
        font-size: 0.6rem;
    }

    .ultra-table-scroll::-webkit-scrollbar {
        height: 4px;
    }

    .ultra-loading {
        padding: 1.5rem;
    }

    .ultra-loading-spinner {
        width: 35px;
        height: 35px;
    }
}

/* --- Asegurar scroll táctil suave en todos los móviles --- */
@media (max-width: 992px) {
    .ultra-table-scroll {
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x proximity;
    }
}

/* --- Orientación horizontal en móviles --- */
@media (max-height: 500px) and (orientation: landscape) {
    #boleta-mens-container {
        padding: 0.5rem;
    }

    #boleta-mens-student-info {
        padding: 0.75rem;
        margin-bottom: 0.75rem;
    }

    .ultra-info-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }

    #boleta-mens-title {
        margin-bottom: 0.75rem;
    }

    #boleta-mens-title h3 {
        font-size: 1rem;
    }

    #boleta-mens-nav {
        margin-bottom: 0.5rem;
    }
}

/* ============ ANIMACIONES ============ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#boleta-mens-nav,
#boleta-mens-student-info,
#boleta-mens-title,
#boleta-mens-table-wrapper {
    animation: fadeInUp 0.5s ease-out forwards;
}

#boleta-mens-student-info { animation-delay: 0.1s; }
#boleta-mens-title { animation-delay: 0.2s; }
#boleta-mens-table-wrapper { animation-delay: 0.3s; }

/* ============ EFECTOS HOVER ============ */
.ultra-table tbody tr:hover td:first-child {
    color: var(--dorado-dark);
}

.ultra-table tbody tr:hover td.prom-cell {
    background: rgba(212, 168, 83, 0.15);
}