/* TROPHE Academy - Sistema de Estilos v2.0 */
:root {
    --primary: #1E3A5F;
    --primary-light: #2D4A6F;
    --secondary: #3B82F6;
    --accent: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --purple: #8B5CF6;
    --bg-primary: #F8FAFC;
    --bg-secondary: #F1F5F9;
    --bg-card: #FFFFFF;
    --text-primary: #1E293B;
    --text-secondary: #475569;
    --text-muted: #94A3B8;
    --border-color: #E2E8F0;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --sidebar-width: 280px;
    --header-height: 70px;
    --transition: all 0.2s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', -apple-system, sans-serif; background: var(--bg-primary); color: var(--text-primary); line-height: 1.6; }
a { color: var(--secondary); text-decoration: none; }
.app-container { display: flex; min-height: 100vh; }
.sidebar { width: var(--sidebar-width); background: var(--primary); color: white; position: fixed; height: 100vh; overflow-y: auto; z-index: 100; display: flex; flex-direction: column; }
.sidebar-header { padding: 1.5rem; border-bottom: 1px solid rgba(255,255,255,0.1); }
.logo-link { display: flex; align-items: center; gap: 0.75rem; color: white; }
.logo-icon { width: 40px; height: 40px; background: var(--secondary); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; }
.logo-title { font-size: 1.25rem; font-weight: 700; display: block; }
.logo-subtitle { font-size: 0.75rem; opacity: 0.7; }
.sidebar-nav { flex: 1; padding: 1rem 0; }
.nav-section { margin-bottom: 1.5rem; }
.nav-section-title { display: block; padding: 0.5rem 1.5rem; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; opacity: 0.5; }
.nav-menu { list-style: none; }
.nav-item { margin: 2px 0.75rem; }
.nav-link { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 1rem; border-radius: var(--radius); color: rgba(255,255,255,0.8); transition: var(--transition); }
.nav-link:hover, .nav-item.active .nav-link { background: rgba(255,255,255,0.1); color: white; }
.nav-badge { background: var(--secondary); color: white; font-size: 0.7rem; padding: 2px 8px; border-radius: 10px; margin-left: auto; }
.nav-badge.danger { background: var(--danger); }
.sidebar-footer { padding: 1rem 1.5rem; border-top: 1px solid rgba(255,255,255,0.1); }
.main-content { flex: 1; margin-left: var(--sidebar-width); min-height: 100vh; display: flex; flex-direction: column; }
.main-header { height: var(--header-height); background: var(--bg-card); border-bottom: 1px solid var(--border-color); display: flex; align-items: center; justify-content: space-between; padding: 0 2rem; position: sticky; top: 0; z-index: 50; }
.header-search { flex: 1; max-width: 400px; }
.search-form { display: flex; align-items: center; background: var(--bg-secondary); border-radius: var(--radius); padding: 0.5rem 1rem; gap: 0.5rem; }
.search-input { border: none; background: none; outline: none; flex: 1; font-size: 0.9rem; }
.header-actions { display: flex; align-items: center; gap: 1rem; }
.header-stats { display: flex; align-items: center; gap: 1rem; padding-right: 1rem; border-right: 1px solid var(--border-color); }
.stat-item { display: flex; align-items: center; gap: 0.5rem; font-weight: 600; color: var(--warning); }
.level-badge { background: linear-gradient(135deg, var(--secondary), var(--purple)); color: white; padding: 4px 12px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; }
.header-btn { background: var(--bg-secondary); border: none; width: 40px; height: 40px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; cursor: pointer; position: relative; }
.header-badge { position: absolute; top: -4px; right: -4px; background: var(--danger); color: white; font-size: 0.65rem; width: 18px; height: 18px; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.header-user { display: flex; align-items: center; gap: 0.75rem; background: none; border: none; cursor: pointer; padding: 0.5rem; border-radius: var(--radius); }
.header-user:hover { background: var(--bg-secondary); }
.user-avatar { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
.user-info { text-align: left; }
.user-name { display: block; font-weight: 600; font-size: 0.9rem; }
.user-role { display: block; font-size: 0.75rem; color: var(--text-muted); }
.dropdown { position: relative; }
.dropdown-menu { position: absolute; top: calc(100% + 8px); right: 0; background: var(--bg-card); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); min-width: 220px; opacity: 0; visibility: hidden; transform: translateY(-10px); transition: var(--transition); z-index: 100; border: 1px solid var(--border-color); }
.dropdown-menu.active { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 1rem; color: var(--text-primary); transition: var(--transition); }
.dropdown-item:hover { background: var(--bg-secondary); }
.dropdown-divider { height: 1px; background: var(--border-color); margin: 0.5rem 0; }
.main-content > *:not(.main-header) { padding: 2rem; flex: 1; }
.card { background: var(--bg-card); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); }
.card-header { padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.card-title { font-size: 1.1rem; font-weight: 600; margin: 0; }
.card-body { padding: 1.5rem; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-bottom: 1.5rem; }
.stat-card { background: var(--bg-card); border-radius: var(--radius-lg); padding: 1.5rem; display: flex; align-items: center; gap: 1rem; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); }
.stat-icon { width: 56px; height: 56px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; }
.stat-icon.blue { background: rgba(59,130,246,0.1); color: var(--secondary); }
.stat-icon.green { background: rgba(16,185,129,0.1); color: var(--accent); }
.stat-icon.orange { background: rgba(245,158,11,0.1); color: var(--warning); }
.stat-icon.purple { background: rgba(139,92,246,0.1); color: var(--purple); }
.stat-value { font-size: 1.75rem; font-weight: 700; line-height: 1; }
.stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }
.welcome-banner { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: white; border-radius: var(--radius-lg); padding: 2rem; margin-bottom: 1.5rem; }
.welcome-title { font-size: 1.75rem; margin-bottom: 0.5rem; }
.welcome-subtitle { opacity: 0.9; margin-bottom: 1.5rem; }
.welcome-stats { display: flex; gap: 3rem; }
.welcome-stat-value { font-size: 1.5rem; font-weight: 700; }
.welcome-stat-label { font-size: 0.85rem; opacity: 0.8; }
.courses-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem; }
.course-card { background: var(--bg-card); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); transition: var(--transition); }
.course-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.course-image { height: 140px; position: relative; display: flex; align-items: flex-end; padding: 1rem; }
.course-badge { position: absolute; top: 1rem; right: 1rem; padding: 4px 10px; border-radius: 20px; font-size: 0.7rem; font-weight: 600; }
.course-badge.obligatorio { background: var(--danger); color: white; }
.course-badge.opcional { background: var(--accent); color: white; }
.course-category { background: white; padding: 4px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 500; }
.course-content { padding: 1.25rem; }
.course-title { font-size: 1rem; font-weight: 600; margin-bottom: 0.5rem; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.course-desc { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.course-meta { display: flex; gap: 1rem; margin-bottom: 1rem; }
.course-meta-item { display: flex; align-items: center; gap: 0.35rem; font-size: 0.8rem; color: var(--text-muted); }
.course-progress { margin-bottom: 1rem; }
.progress-bar { height: 8px; background: var(--bg-secondary); border-radius: 4px; overflow: hidden; }
.progress-fill { height: 100%; border-radius: 4px; transition: width 0.3s ease; }
.progress-fill.low { background: linear-gradient(90deg, var(--danger), #F87171); }
.progress-fill.medium { background: linear-gradient(90deg, var(--warning), #FBBF24); }
.progress-fill.high { background: linear-gradient(90deg, var(--accent), #34D399); }
.progress-text { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--text-muted); margin-top: 0.5rem; }
.course-footer { display: flex; justify-content: space-between; align-items: center; }
.course-points { display: flex; align-items: center; gap: 0.35rem; font-weight: 600; color: var(--warning); font-size: 0.9rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.625rem 1.25rem; border-radius: var(--radius); font-weight: 500; font-size: 0.9rem; border: none; cursor: pointer; transition: var(--transition); text-decoration: none; }
.btn-primary { background: linear-gradient(135deg, var(--secondary), #2563EB); color: white; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-secondary { background: var(--bg-secondary); color: var(--text-primary); }
.btn-secondary:hover { background: var(--border-color); }
.btn-success { background: linear-gradient(135deg, var(--accent), #059669); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.8rem; }
.btn-block { width: 100%; }
.tabs { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; border-bottom: 2px solid var(--border-color); padding-bottom: 0; }
.tab-btn { padding: 0.75rem 1.5rem; color: var(--text-muted); font-weight: 500; border-bottom: 2px solid transparent; margin-bottom: -2px; transition: var(--transition); }
.tab-btn:hover, .tab-btn.active { color: var(--secondary); border-color: var(--secondary); }
.tab-count { background: var(--bg-secondary); padding: 2px 8px; border-radius: 10px; font-size: 0.75rem; margin-left: 0.5rem; }
.badge { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 500; }
.badge-success { background: rgba(16,185,129,0.1); color: var(--accent); }
.badge-warning { background: rgba(245,158,11,0.1); color: var(--warning); }
.badge-danger { background: rgba(239,68,68,0.1); color: var(--danger); }
.badge-info { background: rgba(59,130,246,0.1); color: var(--secondary); }
.empty-state { text-align: center; padding: 3rem; color: var(--text-muted); }
.empty-state svg { opacity: 0.3; margin-bottom: 1rem; }
.empty-state h3 { color: var(--text-primary); margin-bottom: 0.5rem; }
.empty-state p { margin-bottom: 1.5rem; }
.ranking-list { display: flex; flex-direction: column; gap: 0.5rem; }
.ranking-item { display: flex; align-items: center; gap: 1rem; padding: 0.75rem; border-radius: var(--radius); transition: var(--transition); }
.ranking-item:hover, .ranking-item.current-user { background: var(--bg-secondary); }
.ranking-position { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.9rem; }
.ranking-position.gold { background: linear-gradient(135deg, #F59E0B, #D97706); color: white; }
.ranking-position.silver { background: linear-gradient(135deg, #9CA3AF, #6B7280); color: white; }
.ranking-position.bronze { background: linear-gradient(135deg, #D97706, #92400E); color: white; }
.ranking-position.default { background: var(--bg-secondary); color: var(--text-muted); }
.ranking-avatar { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
.ranking-info { flex: 1; }
.ranking-name { font-weight: 500; font-size: 0.9rem; }
.ranking-level { font-size: 0.75rem; color: var(--text-muted); }
.ranking-points { display: flex; align-items: center; gap: 0.35rem; font-weight: 600; color: var(--warning); }
.badges-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 1rem; }
.badge-card { text-align: center; padding: 1.5rem 1rem; border-radius: var(--radius-lg); transition: var(--transition); }
.badge-card.obtained { background: var(--bg-card); border: 1px solid var(--border-color); }
.badge-card.locked { background: var(--bg-secondary); opacity: 0.5; }
.badge-icon { width: 64px; height: 64px; margin: 0 auto 0.75rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.badge-name { font-weight: 600; font-size: 0.85rem; margin-bottom: 0.25rem; }
.badge-desc { font-size: 0.75rem; color: var(--text-muted); }
.badge-date { font-size: 0.7rem; color: var(--text-muted); margin-top: 0.5rem; }
.cert-card { background: var(--bg-card); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border-color); }
.cert-header { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: white; padding: 1.5rem; text-align: center; }
.cert-icon { margin-bottom: 0.5rem; }
.cert-title { font-size: 0.9rem; opacity: 0.9; margin-bottom: 0.5rem; }
.cert-course { font-size: 1.1rem; font-weight: 600; }
.cert-body { padding: 1.5rem; }
.cert-info { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.5rem; }
.cert-info-item { }
.cert-info-label { font-size: 0.75rem; color: var(--text-muted); display: block; }
.cert-info-value { font-weight: 500; }
.cert-status { padding: 4px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 500; }
.cert-status.vigente { background: rgba(16,185,129,0.1); color: var(--accent); }
.cert-status.por-vencer { background: rgba(245,158,11,0.1); color: var(--warning); }
.cert-status.vencido { background: rgba(239,68,68,0.1); color: var(--danger); }
.cert-actions { display: flex; gap: 0.5rem; }
.cert-actions .btn { flex: 1; }
.lesson-container { display: grid; grid-template-columns: 1fr 320px; gap: 1.5rem; }
.lesson-main { background: var(--bg-card); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border-color); }
.lesson-video { position: relative; padding-top: 56.25%; background: #000; }
.lesson-content { padding: 1.5rem; }
.lesson-title { font-size: 1.5rem; margin-bottom: 0.5rem; }
.lesson-meta { display: flex; gap: 1.5rem; color: var(--text-muted); font-size: 0.9rem; }
.lesson-meta span { display: flex; align-items: center; gap: 0.5rem; }
.lesson-sidebar { background: var(--bg-card); border-radius: var(--radius-lg); border: 1px solid var(--border-color); overflow: hidden; height: fit-content; position: sticky; top: calc(var(--header-height) + 2rem); }
.lesson-nav-header { padding: 1rem; font-weight: 600; border-bottom: 1px solid var(--border-color); }
.lesson-nav-list { max-height: 500px; overflow-y: auto; }
.lesson-nav-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 1rem; border-bottom: 1px solid var(--border-color); color: var(--text-primary); transition: var(--transition); }
.lesson-nav-item:hover, .lesson-nav-item.active { background: var(--bg-secondary); }
.lesson-nav-item.completed { color: var(--accent); }
.lesson-nav-icon { width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.lesson-nav-icon.pending { border: 2px solid var(--border-color); }
.lesson-nav-icon.completed { background: var(--accent); color: white; }
.lesson-nav-title { flex: 1; font-size: 0.85rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lesson-nav-duration { font-size: 0.75rem; color: var(--text-muted); }
.notification-item { display: flex; gap: 1rem; padding: 1rem 1.5rem; border-bottom: 1px solid var(--border-color); transition: var(--transition); }
.notification-item.unread { background: rgba(59,130,246,0.05); }
.notification-icon { width: 40px; height: 40px; background: var(--bg-secondary); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--text-muted); flex-shrink: 0; }
.notification-content { flex: 1; }
.notification-title { font-weight: 500; margin-bottom: 0.25rem; }
.notification-message { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.25rem; }
.notification-time { font-size: 0.75rem; color: var(--text-muted); }
.alert { display: flex; gap: 1rem; padding: 1rem 1.5rem; border-radius: var(--radius); }
.alert-warning { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.2); }
.alert-warning svg { color: var(--warning); flex-shrink: 0; }
.alert-title { font-weight: 600; margin-bottom: 0.25rem; }
.alert-message { font-size: 0.9rem; color: var(--text-secondary); }
.form-control { width: 100%; padding: 0.625rem 1rem; border: 1px solid var(--border-color); border-radius: var(--radius); font-size: 0.9rem; transition: var(--transition); }
.form-control:focus { outline: none; border-color: var(--secondary); box-shadow: 0 0 0 3px rgba(59,130,246,0.1); }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; padding-right: 2.5rem; }
.filters { display: flex; gap: 1rem; flex-wrap: wrap; }
.filter-group { display: flex; flex-direction: column; gap: 0.5rem; }
.filter-group label { font-size: 0.8rem; font-weight: 500; color: var(--text-muted); }
.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.text-muted { color: var(--text-muted); }
.flex-1 { flex: 1; }
@media (max-width: 1024px) {
    .sidebar { transform: translateX(-100%); transition: var(--transition); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .lesson-container { grid-template-columns: 1fr; }
    .lesson-sidebar { position: static; }
}
@media (max-width: 768px) {
    .stats-grid { grid-template-columns: 1fr; }
    .courses-grid { grid-template-columns: 1fr; }
    .welcome-stats { flex-wrap: wrap; gap: 1.5rem; }
    .main-header { padding: 0 1rem; }
    .main-content > *:not(.main-header) { padding: 1rem; }
}