/* =============================================
   CYBERHUB - STYLES PRINCIPAUX
   Red Team & Blue Team Design
   ============================================= */

:root {
    /* Red Team Colors */
    --red-primary: #DC2626;
    --red-dark: #991B1B;
    --red-light: #FEE2E2;
    --red-accent: #EF4444;

    /* Blue Team Colors */
    --blue-primary: #2563EB;
    --blue-dark: #1E40AF;
    --blue-light: #DBEAFE;
    --blue-accent: #3B82F6;

    /* Neutral Colors */
    --dark: #0F172A;
    --dark-secondary: #1E293B;
    --gray-900: #111827;
    --gray-800: #1F2937;
    --gray-700: #374151;
    --gray-600: #4B5563;
    --gray-500: #6B7280;
    --gray-400: #9CA3AF;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --gray-50: #F9FAFB;
    --white: #FFFFFF;

    /* Functional Colors */
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;

    /* Semantic Colors */
    --bg-primary: var(--gray-900);
    --bg-secondary: var(--gray-800);
    --bg-tertiary: var(--gray-700);
    --text-primary: var(--white);
    --text-secondary: var(--gray-300);
    --text-muted: var(--gray-500);
    --border: var(--gray-700);

    /* Layout */
    --sidebar-width: 280px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadows */
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    --shadow-red: 0 0 30px rgba(220, 38, 38, 0.3);
    --shadow-blue: 0 0 30px rgba(37, 99, 235, 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* =============================================
   ANIMATIONS
   ============================================= */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

@keyframes glow-red {
    0%, 100% { box-shadow: 0 0 20px rgba(220, 38, 38, 0.4); }
    50% { box-shadow: 0 0 40px rgba(220, 38, 38, 0.6); }
}

@keyframes glow-blue {
    0%, 100% { box-shadow: 0 0 20px rgba(37, 99, 235, 0.4); }
    50% { box-shadow: 0 0 40px rgba(37, 99, 235, 0.6); }
}

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

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* =============================================
   TOP BAR
   ============================================= */

.top-bar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: 60px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 90;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-base);
}

.btn-outline:hover {
    border-color: var(--blue-primary);
    color: var(--blue-accent);
    background: rgba(37, 99, 235, 0.1);
}

.btn-admin {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.1), rgba(37, 99, 235, 0.1));
    border-color: var(--gray-600);
}

.btn-admin:hover {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.2), rgba(37, 99, 235, 0.2));
    border-color: var(--gray-400);
    color: var(--text-primary);
}

/* =============================================
   LAYOUT
   ============================================= */

.app {
    display: flex;
    min-height: 100vh;
}

/* =============================================
   SIDEBAR
   ============================================= */

.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--dark) 0%, var(--dark-secondary) 100%);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 32px;
    animation: float 3s ease-in-out infinite;
}

.logo-text {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--red-primary) 0%, var(--blue-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.sidebar-nav::-webkit-scrollbar {
    width: 6px;
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: var(--gray-600);
    border-radius: 3px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    margin-bottom: 4px;
}

.nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transform: translateX(4px);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--red-primary) 0%, var(--blue-primary) 100%);
    color: var(--white);
    font-weight: 600;
}

.nav-icon {
    font-size: 18px;
}

.nav-section {
    margin-top: 24px;
}

.nav-section-title {
    display: block;
    padding: 8px 16px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--gray-500);
    letter-spacing: 1px;
}

.theme-nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 14px;
}

.theme-nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.theme-nav-item.active {
    color: var(--text-primary);
    font-weight: 500;
}

.theme-nav-item.red:hover,
.theme-nav-item.red.active {
    background: rgba(220, 38, 38, 0.2);
    color: var(--red-accent);
}

.theme-nav-item.blue:hover,
.theme-nav-item.blue.active {
    background: rgba(37, 99, 235, 0.2);
    color: var(--blue-accent);
}

.theme-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.2);
}

.student-info label {
    display: block;
    font-size: 11px;
    color: var(--gray-500);
    margin-bottom: 8px;
    text-transform: uppercase;
}

.student-info input {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: 'JetBrains Mono', monospace;
    margin-bottom: 8px;
    transition: all var(--transition-base);
}

.student-info input:focus {
    outline: none;
    border-color: var(--blue-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.btn-small {
    width: 100%;
    padding: 8px 16px;
    font-size: 13px;
}

.student-stats {
    display: flex;
    gap: 16px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.stat-item {
    text-align: center;
    flex: 1;
}

.stat-value {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 11px;
    color: var(--gray-500);
    text-transform: uppercase;
}

/* =============================================
   MAIN CONTENT
   ============================================= */

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    margin-top: 60px;
    padding: 32px 40px;
    min-height: calc(100vh - 60px);
}

.content-header {
    margin-bottom: 32px;
    animation: fadeInUp var(--transition-slow);
}

.content-header h1 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 8px;
}

.content-header p {
    color: var(--text-secondary);
    font-size: 16px;
}

/* =============================================
   VIEWS
   ============================================= */

.view {
    display: none;
    animation: fadeIn var(--transition-base);
}

.view.active {
    display: block;
}

/* =============================================
   TEAM SELECTOR
   ============================================= */

.team-selector {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.team-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.team-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.team-card.red-team::before {
    background: linear-gradient(90deg, var(--red-dark), var(--red-primary), var(--red-accent));
}

.team-card.blue-team::before {
    background: linear-gradient(90deg, var(--blue-dark), var(--blue-primary), var(--blue-accent));
}

.team-card.red-team:hover {
    border-color: var(--red-primary);
    transform: translateY(-4px);
    animation: glow-red 2s ease-in-out infinite;
}

.team-card.blue-team:hover {
    border-color: var(--blue-primary);
    transform: translateY(-4px);
    animation: glow-blue 2s ease-in-out infinite;
}

.team-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.team-card h2 {
    font-size: 24px;
    margin-bottom: 8px;
}

.team-card.red-team h2 { color: var(--red-accent); }
.team-card.blue-team h2 { color: var(--blue-accent); }

.team-card p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 16px;
}

.team-stats {
    font-size: 13px;
    color: var(--gray-500);
}

/* =============================================
   SECTION TITLE
   ============================================= */

.section-title {
    margin-bottom: 24px;
}

.section-title h2 {
    font-size: 20px;
    font-weight: 700;
}

/* =============================================
   THEMES GRID
   ============================================= */

.themes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.theme-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.theme-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--theme-color);
}

.theme-card:hover {
    border-color: var(--theme-color);
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.theme-card.red { --theme-color: var(--red-primary); }
.theme-card.blue { --theme-color: var(--blue-primary); }

.theme-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.theme-card-icon {
    font-size: 28px;
}

.theme-card h3 {
    font-size: 17px;
    font-weight: 600;
}

.theme-card p {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 16px;
    line-height: 1.6;
}

.theme-card-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--gray-500);
}

/* =============================================
   EXERCISES LIST
   ============================================= */

.exercises-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.exercise-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.exercise-card:hover {
    border-color: var(--gray-500);
    transform: translateX(4px);
    box-shadow: var(--shadow);
}

.exercise-info h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.exercise-info p {
    color: var(--text-secondary);
    font-size: 13px;
}

.exercise-meta {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* =============================================
   BADGES
   ============================================= */

.badge {
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge.débutant, .badge.debutant {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

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

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

.badge.expert {
    background: rgba(139, 92, 246, 0.2);
    color: #8B5CF6;
}

.badge-info {
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border-radius: 50px;
    font-size: 12px;
    color: var(--text-secondary);
}

/* =============================================
   EXERCISE VIEW
   ============================================= */

.exercise-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.exercise-badges {
    display: flex;
    gap: 8px;
}

.exercise-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
}

.tab {
    padding: 12px 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.tab:hover {
    border-color: var(--gray-500);
    color: var(--text-primary);
}

.tab.active {
    background: linear-gradient(135deg, var(--red-primary), var(--blue-primary));
    border-color: transparent;
    color: var(--white);
}

.tab-content {
    display: none;
    animation: fadeInUp var(--transition-base);
}

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

/* =============================================
   MARKDOWN CONTENT
   ============================================= */

.markdown-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 32px;
    line-height: 1.8;
}

.markdown-content h1 {
    font-size: 28px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
}

.markdown-content h2 {
    font-size: 22px;
    margin-top: 32px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.markdown-content h3 {
    font-size: 18px;
    margin-top: 24px;
    margin-bottom: 8px;
}

.markdown-content p {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.markdown-content code {
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--red-accent);
}

.markdown-content pre {
    background: var(--dark);
    border-radius: var(--radius-md);
    padding: 20px;
    overflow-x: auto;
    margin: 20px 0;
    border: 1px solid var(--border);
}

.markdown-content pre code {
    background: transparent;
    padding: 0;
    color: var(--gray-300);
}

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.markdown-content th,
.markdown-content td {
    padding: 12px;
    border: 1px solid var(--border);
    text-align: left;
}

.markdown-content th {
    background: var(--bg-tertiary);
}

.markdown-content ul,
.markdown-content ol {
    margin: 16px 0;
    padding-left: 24px;
    color: var(--text-secondary);
}

.markdown-content li {
    margin-bottom: 8px;
}

/* =============================================
   QUESTIONS
   ============================================= */

.questions-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.questions-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.questions-header h3 {
    font-size: 18px;
}

.score-display {
    background: var(--bg-tertiary);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-weight: 600;
}

.question-item {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 16px;
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

.question-item.correct {
    border-color: var(--success);
    background: rgba(16, 185, 129, 0.1);
}

.question-item.incorrect {
    border-color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

.question-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 16px;
}

.question-number {
    font-weight: 600;
    color: var(--text-secondary);
}

.question-points {
    font-size: 13px;
    color: var(--gray-500);
}

.question-text {
    font-size: 15px;
    margin-bottom: 16px;
    font-weight: 500;
}

.question-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.question-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
}

.question-option:hover {
    border-color: var(--gray-500);
}

.question-option.selected {
    border-color: var(--blue-primary);
    background: rgba(37, 99, 235, 0.1);
}

.question-option input {
    display: none;
}

.question-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
}

.question-input:focus {
    outline: none;
    border-color: var(--blue-primary);
}

.question-hint {
    margin-top: 12px;
    padding: 12px;
    background: rgba(245, 158, 11, 0.1);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--warning);
    display: none;
}

.btn-show-hint {
    margin-top: 8px;
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-show-hint:hover {
    border-color: var(--warning);
    color: var(--warning);
}

.btn-submit-all {
    margin-top: 24px;
    width: 100%;
}

.question-result {
    margin-top: 12px;
    padding: 12px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
}

.question-result.correct {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.question-result.incorrect {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

/* =============================================
   LAB CONTAINER
   ============================================= */

.lab-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.lab-controls {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.lab-status {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.lab-status::before {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--gray-500);
}

.lab-status.running::before {
    background: var(--success);
    animation: pulse 1.5s ease-in-out infinite;
}

.lab-status.starting::before {
    background: var(--warning);
    animation: pulse 0.8s ease-in-out infinite;
}

.vnc-container {
    background: var(--dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.vnc-placeholder {
    color: var(--text-muted);
    font-size: 16px;
}

/* =============================================
   BUTTONS
   ============================================= */

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-blue);
}

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

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-red);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    margin-bottom: 24px;
    transition: all var(--transition-base);
}

.btn-back:hover {
    border-color: var(--gray-500);
    color: var(--text-primary);
}

/* =============================================
   SCOREBOARD
   ============================================= */

.scoreboard-filters {
    display: flex;
    gap: 8px;
    margin-bottom: 32px;
}

.filter-btn {
    padding: 10px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.filter-btn:hover {
    border-color: var(--gray-500);
}

.filter-btn.active {
    border-color: var(--gray-400);
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.filter-btn.red.active {
    border-color: var(--red-primary);
    color: var(--red-accent);
    background: rgba(220, 38, 38, 0.1);
}

.filter-btn.blue.active {
    border-color: var(--blue-primary);
    color: var(--blue-accent);
    background: rgba(37, 99, 235, 0.1);
}

.scoreboard-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.scoreboard-podium {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 16px;
    padding: 32px;
    background: linear-gradient(180deg, var(--bg-tertiary), var(--bg-secondary));
}

.podium-item {
    text-align: center;
    padding: 20px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    min-width: 140px;
}

.podium-item.first {
    transform: scale(1.1);
    border-color: #FFD700;
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.3);
}

.podium-item.second {
    border-color: #C0C0C0;
}

.podium-item.third {
    border-color: #CD7F32;
}

.podium-rank {
    font-size: 32px;
    margin-bottom: 8px;
}

.podium-name {
    font-weight: 600;
    margin-bottom: 4px;
}

.podium-points {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--red-primary), var(--blue-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.scoreboard-table-container {
    padding: 0 24px 24px;
}

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

.scoreboard-table th,
.scoreboard-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.scoreboard-table th {
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    font-weight: 600;
}

.scoreboard-table tr:hover {
    background: var(--bg-tertiary);
}

.rank-cell {
    font-weight: 700;
    font-size: 18px;
}

.rank-1 { color: #FFD700; }
.rank-2 { color: #C0C0C0; }
.rank-3 { color: #CD7F32; }

.points-red {
    color: var(--red-accent);
}

.points-blue {
    color: var(--blue-accent);
}

.points-total {
    font-weight: 700;
    font-size: 16px;
}

/* =============================================
   LOADING
   ============================================= */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 16px;
    z-index: 1000;
}

.loading-overlay.active {
    display: flex;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border);
    border-top-color: var(--blue-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* =============================================
   RESPONSIVE
   ============================================= */

@media (max-width: 1024px) {
    .team-selector {
        grid-template-columns: 1fr;
    }

    .themes-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        padding: 20px;
    }

    .exercise-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .scoreboard-podium {
        flex-direction: column;
        align-items: center;
    }

    .podium-item.first {
        order: -1;
    }
}

/* =============================================
   SCROLLBAR
   ============================================= */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--gray-600);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}