@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* variables CSS para Temas */
:root {
    /* Modo Claro - Paleta Refinada Slated-Blue */
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Outfit', sans-serif;
    
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --border-glass: rgba(226, 232, 240, 0.8);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --color-brand: #6366f1;         /* Indigo */
    --color-brand-hover: #4f46e5;
    --color-brand-glow: rgba(99, 102, 241, 0.15);
    
    --color-success: #10b981;       /* Emerald */
    --color-success-bg: rgba(16, 185, 129, 0.1);
    --color-warning: #f59e0b;       /* Amber */
    --color-warning-bg: rgba(245, 158, 11, 0.1);
    --color-danger: #ef4444;        /* Rose */
    --color-danger-bg: rgba(239, 68, 68, 0.1);
    --color-info: #06b6d4;          /* Cyan */
    --color-info-bg: rgba(6, 182, 212, 0.1);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-premium: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05), inset 0 1px 0 0 rgba(255, 255, 255, 0.5);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-full: 9999px;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    /* Modo Oscuro - Estilo Linear/Stripe Deep Space */
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --bg-glass: rgba(17, 24, 39, 0.7);
    --border-glass: rgba(37, 99, 235, 0.1);
    
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --color-brand: #818cf8;
    --color-brand-hover: #6366f1;
    --color-brand-glow: rgba(129, 140, 248, 0.2);
    
    --color-success: #34d399;
    --color-success-bg: rgba(52, 211, 153, 0.1);
    --color-warning: #fbbf24;
    --color-warning-bg: rgba(251, 191, 36, 0.1);
    --color-danger: #f87171;
    --color-danger-bg: rgba(248, 113, 113, 0.1);
    --color-info: #22d3ee;
    --color-info-bg: rgba(34, 211, 238, 0.1);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
    --shadow-premium: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5), inset 0 1px 0 0 rgba(255, 255, 255, 0.05);
    
    --border-glass: rgba(255, 255, 255, 0.05);
}

/* Estilos Globales */
body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6, .display-font {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

/* Contenedores Glassmorphism */
.glass-panel {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.glass-panel:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(99, 102, 241, 0.25);
}

.glass-card-premium {
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-premium);
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card-premium:hover {
    transform: translateY(-3px);
    box-shadow: 0 30px 40px -15px rgba(0, 0, 0, 0.1);
}

/* Botones Premium */
.btn-premium {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.6rem 1.4rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: 1px solid transparent;
}

.btn-premium-primary {
    background: linear-gradient(135deg, var(--color-brand) 0%, var(--color-brand-hover) 100%);
    color: #ffffff;
    box-shadow: 0 4px 14px 0 var(--color-brand-glow);
}

.btn-premium-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px 0 var(--color-brand-glow);
    filter: brightness(1.05);
    color: #ffffff;
}

.btn-premium-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
}

.btn-premium-secondary:hover {
    background: var(--border-glass);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.btn-premium-danger {
    background: linear-gradient(135deg, var(--color-danger) 0%, #db2777 100%);
    color: #ffffff;
    box-shadow: 0 4px 14px 0 var(--color-danger-bg);
}

.btn-premium-danger:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px 0 var(--color-danger-bg);
    filter: brightness(1.05);
    color: #ffffff;
}

/* Campos de Formulario */
.form-premium {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.form-premium:focus {
    background-color: var(--bg-secondary);
    border-color: var(--color-brand);
    outline: none;
    box-shadow: 0 0 0 4px var(--color-brand-glow);
    color: var(--text-primary);
}

/* Badges */
.badge-premium {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 0.75rem;
    padding: 0.35em 0.75em;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.badge-premium-success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
}

.badge-premium-warning {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
}

.badge-premium-danger {
    background-color: var(--color-danger-bg);
    color: var(--color-danger);
}

.badge-premium-info {
    background-color: var(--color-info-bg);
    color: var(--color-info);
}

/* Sidebar de Navegación */
.sidebar-premium {
    width: 260px;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-glass);
    z-index: 100;
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    transition: transform var(--transition-normal);
}

.sidebar-brand {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.35rem;
    background: linear-gradient(135deg, var(--color-brand) 0%, var(--color-info) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 2.5rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    flex-grow: 1;
}

.sidebar-item a {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.sidebar-item a:hover, .sidebar-item.active a {
    color: var(--color-brand);
    background-color: var(--color-brand-glow);
}

.sidebar-footer {
    padding-top: 1rem;
    border-top: 1px solid var(--border-glass);
}

.main-content {
    margin-left: 260px;
    padding: 2rem;
    min-height: 100vh;
}

@media (max-width: 991.98px) {
    .sidebar-premium {
        transform: translateX(-100%);
    }
    .sidebar-premium.active {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
        padding: 1.25rem;
    }
}

/* Kanban Board */
.kanban-board {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
    align-items: start;
}

.kanban-column {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1rem;
    border: 1px solid var(--border-glass);
}

.kanban-header {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.kanban-cards {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 150px;
}

.kanban-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
    cursor: grab;
    transition: all var(--transition-normal);
}

.kanban-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-brand);
}

/* Línea de Tiempo (Timeline) */
.timeline-premium {
    position: relative;
    padding-left: 1.5rem;
    border-left: 2px solid var(--border-glass);
    margin-left: 0.5rem;
}

.timeline-item {
    position: relative;
    margin-bottom: 1.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-brand);
    left: calc(-1.5rem - 7px);
    top: 5px;
    box-shadow: 0 0 0 4px var(--color-brand-glow);
}

.timeline-item-success::before {
    background-color: var(--color-success);
    box-shadow: 0 0 0 4px var(--color-success-bg);
}

.timeline-item-danger::before {
    background-color: var(--color-danger);
    box-shadow: 0 0 0 4px var(--color-danger-bg);
}

.timeline-item-warning::before {
    background-color: var(--color-warning);
    box-shadow: 0 0 0 4px var(--color-warning-bg);
}

.timeline-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.timeline-content {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Progress bar de porcentaje */
.progress-premium {
    height: 8px;
    border-radius: var(--radius-full);
    background-color: var(--bg-tertiary);
    overflow: hidden;
}

.progress-bar-premium {
    background: linear-gradient(90deg, var(--color-brand) 0%, var(--color-info) 100%);
    border-radius: var(--radius-full);
}

/* Barra de Búsqueda Flotante */
.search-container {
    position: relative;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-input {
    padding-left: 2.75rem !important;
}

/* FAQ Accordion */
.faq-header-btn {
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 1rem;
    transition: color var(--transition-fast);
}

.faq-header-btn:hover {
    color: var(--color-brand);
}

.faq-body {
    padding: 0 1.25rem 1.25rem 1.25rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.faq-item {
    border-bottom: 1px solid var(--border-glass);
}

.faq-item:last-child {
    border-bottom: none;
}

/* Personalización del Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

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

.animate-fade-in {
    animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Drop-zone para subida de archivos */
.upload-dropzone {
    border: 2px dashed var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    background-color: var(--bg-glass);
    transition: all var(--transition-normal);
}

.upload-dropzone:hover {
    border-color: var(--color-brand);
    background-color: var(--color-brand-glow);
}

.upload-dropzone i {
    color: var(--color-brand);
    margin-bottom: 1rem;
}