/* =============================================
   Estilos Personalizados de la Plataforma
   ============================================= */

:root {
    --primary-cyan: #06b6d4;
    --primary-blue: #3b82f6;
    --dark-bg: #111827;
    --dark-card: #1f2937;
    --dark-border: #374151;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #1f2937;
}

::-webkit-scrollbar-thumb {
    background: #06b6d4;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0891b2;
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

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

/* Efectos de hover mejorados */
.hover-lift {
    transition: all 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(6, 182, 212, 0.2);
}

/* Cards con gradiente */
.gradient-card {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.gradient-card:hover {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15) 0%, rgba(59, 130, 246, 0.15) 100%);
    border-color: rgba(6, 182, 212, 0.4);
}

/* Progress bars */
.progress-bar {
    height: 8px;
    background: #374151;
    border-radius: 9999px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #06b6d4 0%, #3b82f6 100%);
    transition: width 0.5s ease;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background: rgba(34, 197, 94, 0.2);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge-warning {
    background: rgba(251, 146, 60, 0.2);
    color: #fb923c;
    border: 1px solid rgba(251, 146, 60, 0.3);
}

.badge-info {
    background: rgba(6, 182, 212, 0.2);
    color: #06b6d4;
    border: 1px solid rgba(6, 182, 212, 0.3);
}

/* Video player personalizado */
.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    background: #000;
    border-radius: 0.5rem;
}

.video-container iframe,
.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Sidebar */
.sidebar {
    transition: transform 0.3s ease;
}

.sidebar-collapsed {
    transform: translateX(-100%);
}

@media (min-width: 768px) {
    .sidebar-collapsed {
        transform: translateX(0);
        width: 80px;
    }
}

/* Tooltips */
.tooltip {
    position: relative;
}

.tooltip:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 1rem;
    background: #1f2937;
    color: white;
    border-radius: 0.5rem;
    white-space: nowrap;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    z-index: 1000;
}

/* Loading spinner */
.spinner {
    border: 3px solid rgba(6, 182, 212, 0.2);
    border-top-color: #06b6d4;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

/* Notification badge */
.notification-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: #ef4444;
    color: white;
    border-radius: 9999px;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: bold;
}

/* Module accordion */
.module-header {
    cursor: pointer;
    transition: all 0.3s ease;
}

.module-header:hover {
    background: rgba(6, 182, 212, 0.1);
}

.module-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.module-content.active {
    max-height: 2000px;
}

/* Lesson item */
.lesson-item {
    transition: all 0.3s ease;
}

.lesson-item:hover {
    background: rgba(6, 182, 212, 0.05);
    transform: translateX(5px);
}

.lesson-item.completed {
    opacity: 0.7;
}

.lesson-item.completed .lesson-icon {
    color: #22c55e;
}

/* Responsive utilities */
@media (max-width: 768px) {
    .mobile-hidden {
        display: none;
    }
}