/* ===================================
   SISTEMA UNIFICADO DE ESTILOS
   Evaluación Docente UNIMO
   =================================== */

/* Variables CSS - Paleta de Colores */
:root {
    /* Colores Principales */
    --primary-green: #166534;
    --primary-green-dark: #14532d;
    --primary-green-light: #16a34a;
    --primary-blue: #2563eb;
    --primary-blue-dark: #1e40af;
    --primary-indigo: #4f46e5;
    
    /* Colores de Estado */
    --success-green: #10b981;
    --warning-yellow: #eab308;
    --error-red: #ef4444;
    --info-blue: #3b82f6;
    
    /* Colores de Evaluación */
    --rating-excellent: #10b981;
    --rating-good: #3b82f6;
    --rating-regular: #eab308;
    --rating-bad: #ef4444;
    
    /* Grises */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Colores de Fondo */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Bordes */
    --border-radius-sm: 0.5rem;
    --border-radius-md: 0.75rem;
    --border-radius-lg: 1rem;
    --border-radius-xl: 1.5rem;
    
    /* Transiciones */
    --transition-fast: 150ms;
    --transition-normal: 200ms;
    --transition-slow: 300ms;
}

/* ===================================
   RESET Y BASE
   =================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--gray-900);
    background-color: var(--bg-secondary);
    line-height: 1.6;
}

/* ===================================
   COMPONENTES UNIFICADOS
   =================================== */

/* Botones Base */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    font-weight: 600;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    text-decoration: none;
    font-size: 0.875rem;
}

.btn:active {
    transform: scale(0.98);
}

/* Botones Primarios */
.btn-primary {
    background: linear-gradient(to right, var(--primary-green), var(--primary-green-light));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(to right, var(--primary-green-dark), var(--primary-green));
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(to right, var(--success-green), #059669);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-success:hover {
    background: linear-gradient(to right, #059669, #047857);
    box-shadow: var(--shadow-lg);
}

.btn-danger {
    background: linear-gradient(to right, var(--error-red), #dc2626);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-danger:hover {
    background: linear-gradient(to right, #dc2626, #b91c1c);
    box-shadow: var(--shadow-lg);
}

.btn-info {
    background: linear-gradient(to right, var(--info-blue), var(--primary-blue));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-info:hover {
    background: linear-gradient(to right, var(--primary-blue), var(--primary-blue-dark));
    box-shadow: var(--shadow-lg);
}

/* Botones Responsive */
@media (max-width: 640px) {
    .btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.8125rem;
    }
}

/* Cards Unificadas */
.card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--gray-100);
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--gray-100);
    background: var(--bg-secondary);
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

@media (max-width: 640px) {
    .card-header, .card-body {
        padding: 1rem;
    }
    .card-footer {
        padding: 0.75rem 1rem;
    }
}

/* Inputs Unificados */
.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius-md);
    font-size: 0.875rem;
    transition: all var(--transition-normal);
    background: var(--bg-primary);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(22, 101, 52, 0.1);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.875rem;
}

@media (max-width: 640px) {
    .form-input {
        padding: 0.625rem 0.875rem;
        font-size: 0.8125rem;
    }
}

/* Badges Unificados */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

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

.badge-error {
    background: #fee2e2;
    color: #991b1b;
}

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}

/* Modales Unificados */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    padding: 1rem;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 32rem;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

@media (max-width: 640px) {
    .modal-content {
        border-radius: var(--border-radius-lg);
    }
    .modal-header, .modal-body, .modal-footer {
        padding: 1rem;
    }
}

/* Headers Unificados */
.page-header {
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--gray-100);
    position: sticky;
    top: 0;
    z-index: 40;
}

.page-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.page-subtitle {
    font-size: 0.875rem;
    color: var(--gray-600);
}

@media (max-width: 640px) {
    .page-title {
        font-size: 1.25rem;
    }
    .page-subtitle {
        font-size: 0.8125rem;
    }
}

/* Tablas Unificadas */
.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--gray-200);
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
}

.table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--gray-700);
}

.table td {
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.875rem;
}

.table tbody tr:hover {
    background: var(--gray-50);
}

@media (max-width: 640px) {
    .table th, .table td {
        padding: 0.5rem 0.75rem;
        font-size: 0.8125rem;
    }
}

/* Alertas Unificadas */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--border-radius-md);
    border-left: 4px solid;
    margin-bottom: 1rem;
}

.alert-success {
    background: #d1fae5;
    border-color: var(--success-green);
    color: #065f46;
}

.alert-warning {
    background: #fef3c7;
    border-color: var(--warning-yellow);
    color: #92400e;
}

.alert-error {
    background: #fee2e2;
    border-color: var(--error-red);
    color: #991b1b;
}

.alert-info {
    background: #dbeafe;
    border-color: var(--info-blue);
    color: #1e40af;
}

/* Loader Unificado */
.loader-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 60;
}

.loader-content {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
}

.spinner {
    width: 3rem;
    height: 3rem;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary-green);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Animaciones Unificadas */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.animate-fade-in {
    animation: fadeIn 0.3s ease-out;
}

.animate-slide-in {
    animation: slideIn 0.3s ease-out;
}

.animate-bounce {
    animation: bounce 0.6s ease-in-out;
}

/* Utilidades Responsive */
@media (max-width: 640px) {
    .hide-mobile {
        display: none !important;
    }
}

@media (min-width: 641px) {
    .show-mobile {
        display: none !important;
    }
}

/* Espaciado Unificado */
.section-spacing {
    padding: 2rem 0;
}

@media (max-width: 640px) {
    .section-spacing {
        padding: 1rem 0;
    }
}

/* Contenedor Principal */
.main-container {
    max-width: 80rem;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 640px) {
    .main-container {
        padding: 0 1.5rem;
    }
}

@media (min-width: 1024px) {
    .main-container {
        padding: 0 2rem;
    }
}

/* ===================================
   COMPONENTES ESPECÍFICOS
   =================================== */

/* Botones de Evaluación */
.rating-button {
    flex: 1;
    min-width: 70px;
    padding: 0.75rem;
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
    color: white;
    font-weight: 600;
    box-shadow: var(--shadow-md);
}

.rating-button:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.rating-button:active {
    transform: scale(0.95);
}

.rating-button.selected {
    transform: scale(1.1);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.4);
}

.rating-excellent {
    background: linear-gradient(to bottom right, var(--rating-excellent), #059669);
}

.rating-good {
    background: linear-gradient(to bottom right, var(--rating-good), var(--primary-blue));
}

.rating-regular {
    background: linear-gradient(to bottom right, var(--rating-yellow), #ca8a04);
}

.rating-bad {
    background: linear-gradient(to bottom right, var(--rating-bad), #dc2626);
}

@media (min-width: 640px) {
    .rating-button {
        min-width: 140px;
        padding: 1rem;
    }
}

/* Barra de Progreso */
.progress-bar-container {
    width: 100%;
    height: 0.75rem;
    background: var(--gray-200);
    border-radius: 9999px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(to right, var(--primary-blue), #8b5cf6, #ec4899);
    border-radius: 9999px;
    transition: width 0.5s ease-out;
}

@media (min-width: 640px) {
    .progress-bar-container {
        height: 1rem;
    }
}

/* Cards de Estadísticas */
.stat-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-normal);
}

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

.stat-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
}

@media (min-width: 640px) {
    .stat-card {
        padding: 1.5rem;
    }
    .stat-icon {
        width: 3rem;
        height: 3rem;
    }
    .stat-value {
        font-size: 2rem;
    }
}