/**
 * Estilos CSS para el Sistema de Auditoría de Software
 * Tema claro, profesional, dinámico y responsivo
 * Mobile First Design
 */

/* Variables CSS personalizadas */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #059669;
    --warning-color: #d97706;
    --danger-color: #dc2626;
    --success-color: #16a34a;
    --light-bg: #f8fafc;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset y estilos base */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #334155;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 100vh;
    padding-top: 80px; /* Espacio para el header fijo */
}

/* Estilos de navegación */
.nav-button {
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

.nav-button.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-color: var(--primary-color);
    box-shadow: var(--card-shadow);
}

.nav-button.active i {
    color: white;
}

/* Efectos de hover mejorados */
.nav-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.nav-button:hover::before {
    left: 100%;
}

/* Estilos de contenido */
.content-section {
    display: none;
    animation: fadeInUp 0.5s ease-out;
}

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

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

/* Estilos de tarjetas */
.info-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
}

.info-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.info-card h3 {
    color: var(--primary-color);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
}

.info-card h3 i {
    margin-right: 0.5rem;
    font-size: 1.1rem;
}

/* Estilos de métricas */
.metric-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    border: 2px solid #e2e8f0;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.metric-card:hover {
    transform: scale(1.05);
    border-color: var(--primary-color);
    box-shadow: var(--card-shadow);
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.5rem;
}

.metric-label {
    font-size: 0.875rem;
    color: var(--secondary-color);
    font-weight: 500;
}

/* Estilos de alertas */
.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.alert-info {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    color: #1e40af;
}

.alert-warning {
    background: #fffbeb;
    border: 1px solid #fed7aa;
    color: #92400e;
}

.alert-success {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
}

.alert-danger {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

/* Estilos de tablas */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.data-table th {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid #e2e8f0;
    vertical-align: top;
}

.data-table tr:hover {
    background: #f8fafc;
}

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

/* Estilos de badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-primary {
    background: #dbeafe;
    color: var(--primary-color);
}

.badge-success {
    background: #dcfce7;
    color: var(--success-color);
}

.badge-warning {
    background: #fef3c7;
    color: var(--warning-color);
}

.badge-danger {
    background: #fee2e2;
    color: var(--danger-color);
}

/* Estilos de loading */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Estilos de botones mejorados */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 0.875rem;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px -8px var(--primary-color);
}

.btn-secondary {
    background: white;
    color: var(--secondary-color);
    border: 2px solid #e2e8f0;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    text-decoration: none;
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: #f8fafc;
}

/* Estilos de lista mejorados */
.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    padding: 0.5rem;
    border-radius: 6px;
    transition: var(--transition);
}

.feature-list li:hover {
    background: #f8fafc;
}

.feature-list li i {
    color: var(--success-color);
    margin-right: 0.75rem;
    margin-top: 0.125rem;
    font-size: 0.875rem;
}

/* Responsive Design - Mobile First */

/* Estilos para pantallas pequeñas (hasta 640px) */
@media (max-width: 640px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .info-card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .data-table {
        font-size: 0.875rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.75rem 0.5rem;
    }
    
    .metric-card {
        padding: 1rem;
    }
    
    .metric-value {
        font-size: 1.5rem;
    }
}

/* Estilos para móviles - Mobile First */
@media (max-width: 1023px) {
    main.flex-1 {
        margin-left: 0 !important;
        width: 100% !important;
    }
    
    header {
        padding-left: 1rem !important;
        width: 100% !important;
    }
    
    footer {
        margin-left: 0 !important;
        width: 100% !important;
    }
    
    body {
        padding-top: 90px; /* Espacio para el header fijo */
    }
}

/* Estilos para tablets (641px - 768px) */
@media (min-width: 641px) and (max-width: 768px) {
    .info-card {
        padding: 1.25rem;
    }
    
    .metric-card {
        padding: 1.25rem;
    }
}

/* Estilos para desktop (769px en adelante) */
@media (min-width: 769px) {
    .nav-button span {
        display: inline !important;
    }
    
    .grid-auto-fit {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

/* Estilos de accesibilidad */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Layout Fix para pantallas grandes */
@media (min-width: 1024px) {
    .flex-1 {
        margin-left: 0 !important;
    }
    
    body {
        overflow-x: hidden;
    }
    
    #sidebar {
        position: fixed;
        top: 80px; /* Debajo del header */
        left: 0;
        height: calc(100vh - 80px);
        z-index: 30; /* Menor que el header */
        width: 16rem; /* w-64 */
    }
    
    /* Fix para el margen del contenido principal */
    main.flex-1 {
        margin-left: 16rem; /* 64 en Tailwind = 16rem */
        width: calc(100% - 16rem);
    }
    
    /* Fix para el header - mantener su posición fija */
    header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 50; /* Mayor que el sidebar */
        padding-left: 16rem;
        width: 100%;
    }
}

@media (min-width: 1280px) {
    #sidebar {
        top: 80px; /* Debajo del header */
        height: calc(100vh - 80px);
        width: 18rem; /* w-72 */
    }
    
    main.flex-1 {
        margin-left: 18rem; /* 72 en Tailwind = 18rem */
        width: calc(100% - 18rem);
    }
    
    /* Fix para el header en pantallas muy grandes */
    header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 50; /* Mayor que el sidebar */
        padding-left: 18rem;
    }
}

/* Asegurar que el footer también respete el layout */
@media (min-width: 1024px) {
    footer {
        margin-left: 16rem;
        width: calc(100% - 16rem);
    }
}

@media (min-width: 1280px) {
    footer {
        margin-left: 18rem;
        width: calc(100% - 18rem);
    }
}

/* Focus styles para accesibilidad */
button:focus,
a:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Estilos de impresión */
@media print {
    .nav-button,
    footer {
        display: none !important;
    }
    
    .content-section {
        display: block !important;
        break-inside: avoid;
    }
    
    .info-card {
        box-shadow: none;
        border: 1px solid #e2e8f0;
        break-inside: avoid;
    }
}

/* Estilos adicionales para elementos interactivos */
.tooltip {
    position: relative;
    cursor: help;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #1f2937;
    color: white;
    padding: 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    z-index: 1000;
}

.tooltip:hover::after {
    opacity: 1;
}

/* Estilos para scroll personalizado */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Animaciones adicionales */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight 0.5s ease-out;
}

/* Estilos para modo oscuro (preparación futura) */
@media (prefers-color-scheme: dark) {
    /* Los estilos de modo oscuro se pueden agregar aquí en futuras versiones */
}