/**
 * THC Gestión - Estilos Principales
 * Usando la paleta de colores de SecureCore
 */

/* ==========================================================================
   Variables CSS - Paleta de Colores SecureCore
   ========================================================================== */

:root {
    /* Colores principales */
    --primary-blue: #0066ff;
    --dark-blue: #001a44;
    --neon-green: #00ff88;
    --cyber-purple: #8b5cf6;
    --dark-bg: #0a0a0a;
    --card-bg: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--primary-blue), var(--cyber-purple));
    --gradient-accent: linear-gradient(135deg, var(--neon-green), var(--primary-blue));
    --gradient-dark: linear-gradient(135deg, var(--dark-bg), var(--card-bg));
    
    /* Colores adicionales para THC Gestión */
    --success: var(--neon-green);
    --warning: #f59e0b;
    --error: #ef4444;
    --info: var(--primary-blue);
    
    /* Transparencias */
    --primary-blue-10: rgba(0, 102, 255, 0.1);
    --primary-blue-20: rgba(0, 102, 255, 0.2);
    --primary-blue-30: rgba(0, 102, 255, 0.3);
    --neon-green-10: rgba(0, 255, 136, 0.1);
    --neon-green-20: rgba(0, 255, 136, 0.2);
    --cyber-purple-10: rgba(139, 92, 246, 0.1);
    
    /* Tipografía */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    
    /* Espaciado */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    
    /* Radios de borde */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50px;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px var(--primary-blue-30);
    --shadow-glow-green: 0 0 20px var(--neon-green-20);
    
    /* Transiciones */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ==========================================================================
   Reset y Base
   ========================================================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ==========================================================================
   Tipografía
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
}

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--neon-green);
    text-shadow: 0 0 8px var(--neon-green-20);
}

/* ==========================================================================
   Layout Principal
   ========================================================================== */

.app-container {
    display: flex;
    min-height: 100vh;
    background: var(--dark-bg);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-left: 260px;
    transition: var(--transition-normal);
}

.main-content.sidebar-collapsed {
    margin-left: 80px;
}

.page-header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--primary-blue-20);
    padding: var(--space-lg) var(--space-xl);
    display: flex;
    justify-content: between;
    align-items: center;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.page-content {
    flex: 1;
    padding: var(--space-xl);
    background: var(--dark-bg);
}

/* ==========================================================================
   Sidebar
   ========================================================================== */

.sidebar {
    width: 260px;
    background: var(--card-bg);
    border-right: 1px solid var(--primary-blue-20);
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 200;
    transition: var(--transition-normal);
    overflow-y: auto;
}

.sidebar.collapsed {
    width: 80px;
}

.sidebar-header {
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--primary-blue-20);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 600;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    white-space: nowrap;
}

.sidebar.collapsed .logo {
    display: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.sidebar-nav {
    padding: var(--space-lg) 0;
}

.nav-group {
    margin-bottom: var(--space-lg);
}

.nav-group-title {
    padding: 0 var(--space-xl) var(--space-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    opacity: 0.7;
}

.sidebar.collapsed .nav-group-title {
    display: none;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: var(--space-md) var(--space-xl);
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
    gap: var(--space-md);
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: var(--primary-blue-10);
    color: var(--neon-green);
    border-left-color: var(--neon-green);
}

.nav-item.active {
    background: var(--primary-blue-10);
    color: var(--primary-blue);
    border-left-color: var(--primary-blue);
}

.nav-item-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    width: 20px;
    text-align: center;
}

.nav-item-text {
    font-weight: 500;
}

.sidebar.collapsed .nav-item-text {
    display: none;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: var(--space-md);
}

/* ==========================================================================
   Cards y Containers
   ========================================================================== */

.card {
    background: var(--card-bg);
    border: 1px solid var(--primary-blue-20);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-lg);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition-normal);
}

.card:hover {
    border-color: var(--neon-green);
    box-shadow: var(--shadow-glow-green);
    transform: translateY(-2px);
}

.card:hover::before {
    transform: scaleX(1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--primary-blue-20);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.card-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: var(--space-xs);
}

.card-content {
    color: var(--text-secondary);
}

.card-footer {
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--primary-blue-20);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ==========================================================================
   Botones
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border: none;
    border-radius: var(--radius-full);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
    min-height: 40px;
    white-space: nowrap;
}

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

/* Botón primario */
.btn-primary {
    background: var(--gradient-primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* Botón secundario */
.btn-secondary {
    background: transparent;
    color: var(--neon-green);
    border: 2px solid var(--neon-green);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--neon-green);
    color: var(--dark-bg);
    box-shadow: var(--shadow-glow-green);
}

/* Botón de éxito */
.btn-success {
    background: var(--success);
    color: var(--dark-bg);
}

.btn-success:hover:not(:disabled) {
    background: #00e67c;
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.4);
}

/* Botón de advertencia */
.btn-warning {
    background: var(--warning);
    color: white;
}

.btn-warning:hover:not(:disabled) {
    background: #f59e0b;
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.4);
}

/* Botón de error */
.btn-error {
    background: var(--error);
    color: white;
}

.btn-error:hover:not(:disabled) {
    background: #dc2626;
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.4);
}

/* Botón fantasma */
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--primary-blue-20);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--primary-blue-10);
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

/* Tamaños de botón */
.btn-sm {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.75rem;
    min-height: 32px;
}

.btn-lg {
    padding: var(--space-lg) var(--space-xl);
    font-size: 1rem;
    min-height: 48px;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-md);
}

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

.btn-icon.btn-lg {
    width: 48px;
    height: 48px;
}

/* ==========================================================================
   Formularios
   ========================================================================== */

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    font-size: 0.875rem;
}

.form-label.required::after {
    content: ' *';
    color: var(--error);
}

.form-input, 
.form-select, 
.form-textarea {
    width: 100%;
    padding: var(--space-md);
    border: 1px solid var(--primary-blue-20);
    border-radius: var(--radius-md);
    background: var(--card-bg);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px var(--primary-blue-20);
}

.form-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-error {
    color: var(--error);
    font-size: 0.75rem;
    margin-top: var(--space-xs);
}

.form-help {
    color: var(--text-secondary);
    font-size: 0.75rem;
    margin-top: var(--space-xs);
}

/* Checkboxes y radios */
.form-checkbox,
.form-radio {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.form-checkbox input,
.form-radio input {
    width: auto;
    margin: 0;
}

/* ==========================================================================
   Tablas
   ========================================================================== */

.table-container {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--primary-blue-20);
    overflow: hidden;
}

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

.table th,
.table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--primary-blue-20);
}

.table th {
    background: var(--primary-blue-10);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table td {
    color: var(--text-secondary);
}

.table tbody tr:hover {
    background: var(--primary-blue-10);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ==========================================================================
   Badges y Estados
   ========================================================================== */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-primary {
    background: var(--primary-blue-20);
    color: var(--primary-blue);
}

.badge-success {
    background: var(--neon-green-20);
    color: var(--neon-green);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.badge-error {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

.badge-secondary {
    background: rgba(160, 160, 160, 0.2);
    color: var(--text-secondary);
}

/* ==========================================================================
   Modales
   ========================================================================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--card-bg);
    border: 1px solid var(--primary-blue-20);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--primary-blue-20);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--error);
    background: rgba(239, 68, 68, 0.1);
}

.modal-body {
    padding: var(--space-xl);
}

.modal-footer {
    padding: var(--space-lg) var(--space-xl);
    border-top: 1px solid var(--primary-blue-20);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
}

/* ==========================================================================
   Notificaciones Toast
   ========================================================================== */

.toast-container {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: 2000;
}

.toast {
    background: var(--card-bg);
    border: 1px solid var(--primary-blue-20);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    margin-bottom: var(--space-sm);
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    opacity: 0;
    transition: var(--transition-normal);
    max-width: 400px;
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    margin-bottom: var(--space-xs);
    font-size: 0.875rem;
}

.toast-message {
    color: var(--text-secondary);
    font-size: 0.8rem;
    line-height: 1.4;
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    font-size: 1.2rem;
    line-height: 1;
}

.toast-success {
    border-left: 4px solid var(--success);
}

.toast-success .toast-icon {
    color: var(--success);
}

.toast-error {
    border-left: 4px solid var(--error);
}

.toast-error .toast-icon {
    color: var(--error);
}

.toast-warning {
    border-left: 4px solid var(--warning);
}

.toast-warning .toast-icon {
    color: var(--warning);
}

.toast-info {
    border-left: 4px solid var(--info);
}

.toast-info .toast-icon {
    color: var(--info);
}

/* ==========================================================================
   Utilidades
   ========================================================================== */

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

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

.m-0 { margin: 0; }
.mt-auto { margin-top: auto; }
.mb-0 { margin-bottom: 0; }

.hidden { display: none; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Spinner de carga */
.spinner {
    border: 3px solid var(--primary-blue-20);
    border-top: 3px solid var(--primary-blue);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
}

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

.spinner-lg {
    width: 48px;
    height: 48px;
    border-width: 4px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
}

@media (max-width: 768px) {
    .page-content {
        padding: var(--space-md);
    }
    
    .card {
        padding: var(--space-lg);
    }
    
    .table-container {
        overflow-x: auto;
    }
    
    .modal {
        width: 95%;
        max-width: none;
    }
    
    .toast-container {
        left: var(--space-md);
        right: var(--space-md);
        top: var(--space-md);
    }
    
    .toast {
        max-width: none;
    }
}

@media (max-width: 480px) {
    .page-header {
        padding: var(--space-md);
    }
    
    .btn {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.8rem;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}

/* ==========================================================================
   Animaciones adicionales
   ========================================================================== */

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

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

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

.animate-fade-in {
    animation: fadeIn 0.5s ease;
}

.animate-slide-in-right {
    animation: slideInRight 0.3s ease;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

/* Efectos de hover adicionales */
.hover-glow:hover {
    box-shadow: var(--shadow-glow);
}

.hover-lift:hover {
    transform: translateY(-2px);
}

.hover-scale:hover {
    transform: scale(1.05);
}