@import url('./design-tokens.css');
/**
 * knowledge-quiz.css
 * Styling für das Knowledge Quiz - Gamified Learning mit Sidebar Navigation
 *
 * Design: Glassmorphism mit Cyan/Türkis Akzenten (wie Knowledge Challenger)
 * Layout: Sidebar (links) + Main Content (rechts) + XP-Footer
 */

/* ============================================================================
   VARIABLES
   ============================================================================ */
:root {
    --kq-primary: var(--color-accent);
    --kq-primary-hover: #0891b2;
    --kq-primary-glow: rgba(var(--color-accent-rgb), 0.3);
    --kq-secondary: #64748b;
    --kq-success: var(--color-success);
    --kq-warning: #f59e0b;
    --kq-danger: #ef4444;
    --kq-xp-gold: #fbbf24;
    --kq-bg-dark: rgba(15, 20, 35, 0.98);
    --kq-bg-card: rgba(20, 30, 50, 0.9);
    --kq-bg-sidebar: rgba(10, 15, 28, 0.95);
    --kq-border: rgba(var(--color-accent-rgb), 0.25);
    --kq-text: #f1f5f9;
    --kq-text-muted: #94a3b8;
    --kq-radius: 12px;
    --kq-radius-sm: 8px;
    --kq-sidebar-width: 72px;
    --kq-sidebar-width-expanded: 180px;
}

/* ============================================================================
   WINDOW CONTAINER
   ============================================================================ */
#knowledge-quiz-window {
    position: fixed;
    /* Zentriert ohne transform - wichtig für Drag-Funktionalität */
    top: 60px;
    left: calc(50% - 560px);
    width: 1120px;
    min-width: 800px;
    height: auto;
    min-height: 500px;
    max-height: calc(100vh - 80px);
    background: linear-gradient(180deg,
        rgb(15, 22, 38) 0%,
        rgb(10, 16, 30) 100%);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius);
    box-shadow:
        0 25px 50px -12px rgba(0, 0, 0, 0.6),
        0 0 50px rgba(var(--color-accent-rgb), 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(var(--glass-blur-md));
    display: none;
    flex-direction: column;
    z-index: var(--z-modal);
    overflow: hidden;
    pointer-events: auto;
}

#knowledge-quiz-window.visible {
    display: flex;
}

/* Wenn nicht im Fullscreen, normale Drag-Funktionalität */
#knowledge-quiz-window:not(.fullscreen) .kq-header {
    cursor: move !important;
}

#knowledge-quiz-window.fullscreen {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    max-width: 100vw !important;
    max-height: 100vh !important;
    border-radius: 0 !important;
    z-index: var(--z-max);
}

/* ============================================================================
   WINDOW HEADER
   ============================================================================ */
.kq-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: linear-gradient(180deg,
        rgba(var(--color-accent-rgb), 0.12) 0%,
        rgba(var(--color-accent-rgb), 0.04) 100%);
    border-bottom: 1px solid var(--kq-border);
    flex-shrink: 0;
}

.kq-header .unified-header-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    font-weight: 600;
    color: var(--kq-text);
    pointer-events: none;
}

.kq-header .unified-header-icon {
    width: 28px;
    height: 28px;
    object-fit: contain;
}

.kq-header .unified-header-subtitle {
    font-size: 12px;
    color: var(--kq-text-muted);
    font-weight: 400;
    margin-left: 4px;
}

/* ============================================================================
   MAIN LAYOUT: Sidebar + Content
   ============================================================================ */
.kq-layout {
    display: flex;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

/* ============================================================================
   SIDEBAR NAVIGATION - Vertikal wie Business Sidebar
   ============================================================================ */
.kq-sidebar {
    position: absolute;
    left: 16px;
    top: 80px;
    z-index: 100;
    width: 300px;
    background: rgba(15, 22, 38, 0.92);
    backdrop-filter: blur(var(--glass-blur-md));
    -webkit-backdrop-filter: blur(var(--glass-blur-md));
    border: 1px solid rgba(var(--color-accent-rgb), 0.2);
    border-radius: var(--radius-xl);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.05) inset,
        0 0 20px rgba(var(--color-accent-rgb), 0.1);
    display: flex;
    flex-direction: column;
    padding: 12px 10px;
    gap: 6px;
    flex-shrink: 0;
    transition: all 0.3s ease;
    pointer-events: auto;
}

.kq-sidebar:hover {
    background: rgba(15, 22, 38, 0.96);
    border-color: rgba(var(--color-accent-rgb), 0.4);
    box-shadow:
        0 12px 40px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(var(--color-accent-rgb), 0.15);
}

/* Drag Handle */
.kq-sidebar-handle {
    width: 100%;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.03);
    margin-bottom: 6px;
    transition: background 0.2s ease;
}

.kq-sidebar-handle:hover {
    background: rgba(var(--color-accent-rgb), 0.15);
}

.kq-sidebar-handle:active {
    cursor: grabbing;
}

.kq-sidebar-handle::before {
    content: "⋮⋮";
    font-size: 10px;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.4);
}

/* Sidebar Label */
.kq-sidebar-label {
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: rgba(var(--color-accent-rgb), 0.8);
    text-align: center;
    padding: 4px 0 8px;
    margin-bottom: 6px;
    border-bottom: 1px solid rgba(var(--color-accent-rgb), 0.2);
}

/* Dezente Stats-Badges in Sidebar */
.kq-sidebar-stats {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
    padding: 10px;
    background: rgba(var(--color-accent-rgb), 0.05);
    border-radius: 10px;
    border: 1px solid rgba(var(--color-accent-rgb), 0.15);
}

.kq-sidebar-stat {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.kq-sidebar-stat:hover {
    background: rgba(var(--color-accent-rgb), 0.1);
    transform: translateX(2px);
}

.kq-sidebar-stat.kq-sidebar-streak {
    background: linear-gradient(90deg,
        rgba(251, 146, 60, 0.15),
        rgba(249, 115, 22, 0.1));
    border: 1px solid rgba(251, 146, 60, 0.2);
}

.kq-sidebar-stat.kq-sidebar-level {
    background: linear-gradient(90deg,
        rgba(var(--color-accent-rgb), 0.15),
        rgba(34, 211, 238, 0.1));
    border: 1px solid rgba(var(--color-accent-rgb), 0.2);
}

.kq-sidebar-stat-icon {
    font-size: 20px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.kq-sidebar-stat-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.kq-sidebar-stat-label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--kq-text-muted);
    font-weight: 600;
    opacity: 0.8;
}

.kq-sidebar-stat-value {
    font-size: 14px;
    font-weight: 700;
    color: var(--kq-text);
    white-space: nowrap;
}

/* Nav Buttons */
.kq-nav-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    color: var(--kq-text-muted);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    width: 100%;
    text-align: left;
    pointer-events: auto;
    user-select: none;
}

.kq-nav-btn:hover {
    background: rgba(var(--color-accent-rgb), 0.15);
    border-color: rgba(var(--color-accent-rgb), 0.4);
    color: var(--kq-text);
    transform: translateX(4px);
    box-shadow: 0 4px 16px rgba(var(--color-accent-rgb), 0.2);
}

.kq-nav-btn:active {
    transform: translateX(2px);
}

.kq-nav-btn.active {
    background: linear-gradient(135deg,
        rgba(var(--color-accent-rgb), 0.25) 0%,
        rgba(34, 211, 238, 0.2) 100%);
    border-color: rgba(var(--color-accent-rgb), 0.6);
    color: var(--kq-text);
    box-shadow:
        0 0 20px rgba(var(--color-accent-rgb), 0.3),
        0 0 0 2px rgba(var(--color-accent-rgb), 0.1) inset;
}

.kq-nav-icon {
    font-size: 36px;
    min-width: 44px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.4));
}

.kq-nav-icon-img {
    width: 44px;
    height: 44px;
    object-fit: contain;
    flex-shrink: 0;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.4));
    pointer-events: none;
}

.kq-nav-btn:hover .kq-nav-icon {
    transform: scale(1.15);
    filter: drop-shadow(0 6px 12px rgba(var(--color-accent-rgb), 0.4));
}

.kq-nav-btn:hover .kq-nav-icon-img {
    transform: scale(1.15);
    filter: drop-shadow(0 6px 12px rgba(var(--color-accent-rgb), 0.4));
}

.kq-nav-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.kq-nav-title {
    font-size: 14px;
    font-weight: 600;
    color: inherit;
    line-height: 1.3;
}

.kq-nav-desc {
    font-size: 11px;
    font-weight: 400;
    color: var(--kq-text-muted);
    line-height: 1.4;
    opacity: 0.8;
}

/* Sidebar Divider */
.kq-nav-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(var(--color-accent-rgb), 0.3), transparent);
    margin: 10px 0;
}

/* Help Button */
.kq-nav-btn.kq-help-btn {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(var(--color-primary-rgb), 0.15));
    border-color: rgba(34, 197, 94, 0.25);
}

.kq-nav-btn.kq-help-btn:hover {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.25), rgba(var(--color-primary-rgb), 0.25));
    border-color: rgba(34, 197, 94, 0.4);
}

/* Audio Guide Button */
.kq-nav-btn.kq-audio-guide-btn {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(var(--color-secondary-rgb), 0.15));
    border-color: rgba(168, 85, 247, 0.25);
}

.kq-nav-btn.kq-audio-guide-btn:hover {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.25), rgba(var(--color-secondary-rgb), 0.25));
    border-color: rgba(168, 85, 247, 0.4);
    box-shadow: 0 4px 12px rgba(168, 85, 247, 0.2);
}

.kq-nav-btn.kq-audio-guide-btn.playing {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.25), rgba(168, 85, 247, 0.15));
    border-color: rgba(239, 68, 68, 0.4);
    animation: kq-audio-pulse 1.5s ease-in-out infinite;
}

@keyframes kq-audio-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ============================================================================
   MAIN CONTENT AREA
   ============================================================================ */
.kq-content {
    flex: 1;
    padding: 24px;
    padding-left: 350px; /* Platz für Sidebar (300px + 50px Abstand) */
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 0;
    pointer-events: auto;
}

/* Loading State */
.kq-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: var(--spacing-md);
    color: var(--kq-text-muted);
}

.kq-loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--kq-border);
    border-top-color: var(--kq-primary);
    border-radius: 50%;
    animation: kq-spin 1s linear infinite;
}

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

/* ============================================================================
   XP/LEVEL FOOTER
   ============================================================================ */
.kq-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: var(--kq-bg-sidebar);
    border-top: 1px solid var(--kq-border);
    flex-shrink: 0;
    pointer-events: auto;
}

.kq-xp-bar {
    flex: 1;
    max-width: 400px;
}

.kq-xp-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: 6px;
}

.kq-level-badge {
    background: linear-gradient(135deg,
        var(--kq-xp-gold) 0%,
        #f59e0b 100%);
    color: #1a1a1a;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: var(--radius-2xl);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kq-xp-text {
    font-size: 12px;
    color: var(--kq-text-muted);
}

.kq-xp-track {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.kq-xp-fill {
    height: 100%;
    background: linear-gradient(90deg,
        var(--kq-primary) 0%,
        var(--kq-xp-gold) 100%);
    border-radius: 3px;
    transition: width 0.5s ease;
}

.kq-streak-info {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: var(--radius-2xl);
}

.kq-streak-icon {
    font-size: 18px;
}

.kq-streak-count {
    font-size: 14px;
    font-weight: 700;
    color: var(--kq-xp-gold);
}

/* ============================================================================
   HOME TAB - Dashboard
   ============================================================================ */
.kq-home {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.kq-stat-card {
    background: var(--kq-bg-card);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.kq-stat-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg,
        rgba(var(--color-accent-rgb), 0.2) 0%,
        rgba(var(--color-accent-rgb), 0.05) 100%);
    border-radius: var(--kq-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.kq-stat-info h4 {
    font-size: 13px;
    color: var(--kq-text-muted);
    margin: 0 0 4px 0;
    font-weight: 500;
}

.kq-stat-info .kq-stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--kq-text);
}

.kq-quick-start {
    grid-column: 1 / -1;
    background: linear-gradient(135deg,
        rgba(var(--color-accent-rgb), 0.15) 0%,
        rgba(var(--color-accent-rgb), 0.05) 100%);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius);
    padding: 24px;
    text-align: center;
}

.kq-quick-start h3 {
    font-size: 18px;
    color: var(--kq-text);
    margin: 0 0 8px 0;
}

.kq-quick-start p {
    color: var(--kq-text-muted);
    margin: 0 0 20px 0;
}

/* ============================================================================
   TOPICS TAB - 4 MODE CARDS
   ============================================================================ */
.kq-hero-mode-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.kq-mode-card {
    background: var(--kq-bg-card);
    border: 2px solid var(--kq-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    min-height: 240px;
    padding: 24px;
}

.kq-mode-card:hover:not(.disabled) {
    border-color: var(--kq-primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(var(--color-accent-rgb), 0.2);
}

.kq-mode-card.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.kq-mode-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.kq-mode-icon {
    font-size: 56px;
    line-height: 1;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
}

.kq-mode-badge {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--kq-primary);
    background: rgba(var(--color-accent-rgb), 0.15);
    padding: 4px 10px;
    border-radius: var(--radius-lg);
}

.kq-mode-card-body {
    flex: 1;
    margin-bottom: 20px;
}

.kq-mode-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--kq-text);
    margin: 0 0 8px 0;
}

.kq-mode-desc {
    font-size: 13px;
    color: var(--kq-text-muted);
    line-height: 1.5;
    margin: 0;
}

.kq-mode-btn {
    width: 100%;
    padding: 12px 20px;
    background: linear-gradient(135deg, var(--kq-primary) 0%, #0891b2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.kq-mode-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, #0891b2 0%, var(--kq-primary) 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(var(--color-accent-rgb), 0.3);
}

.kq-mode-btn:disabled {
    background: rgba(100, 116, 139, 0.3);
    cursor: not-allowed;
}

.kq-mode-arrow {
    font-size: 18px;
    transition: transform 0.2s ease;
}

.kq-mode-card:hover:not(.disabled) .kq-mode-arrow {
    transform: translateX(4px);
}

/* Mode Content Area */
.kq-mode-content {
    margin-top: 32px;
    padding: 24px;
    background: var(--kq-bg-card);
    border: 2px solid var(--kq-border);
    border-radius: var(--radius-xl);
}

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

.kq-mode-content-header h3 {
    margin: 0;
    color: var(--kq-text);
    font-size: 18px;
}

.kq-close-content {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--kq-border);
    background: transparent;
    color: var(--kq-text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 16px;
}

.kq-close-content:hover {
    background: var(--kq-danger);
    color: white;
    border-color: var(--kq-danger);
}

.kq-back-btn {
    padding: 8px 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--kq-border);
    background: transparent;
    color: var(--kq-text);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 14px;
    margin-right: 12px;
}

.kq-back-btn:hover {
    background: var(--kq-primary);
    color: white;
    border-color: var(--kq-primary);
}

/* Categories Grid */
.kq-categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--spacing-md);
}

.kq-category-card {
    background: var(--kq-bg);
    border: 1px solid var(--kq-border);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.kq-category-card:hover {
    border-color: var(--kq-primary);
    background: rgba(var(--color-accent-rgb), 0.05);
    transform: translateY(-2px);
}

.kq-category-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.kq-category-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--kq-text);
    margin-bottom: 4px;
}

.kq-category-count {
    font-size: 12px;
    color: var(--kq-text-muted);
}

/* Hero Topics Grid (im Content-Bereich) */
.kq-hero-topics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.kq-hero-card {
    background: var(--kq-bg-card);
    border: 2px solid var(--kq-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    min-height: 220px;
}

.kq-hero-card:hover {
    border-color: var(--kq-primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(var(--color-accent-rgb), 0.2);
}

.kq-hero-card-header {
    padding: 20px 20px 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.kq-hero-icon {
    font-size: 64px;
    line-height: 1;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
}

.kq-hero-category {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--kq-primary);
    background: rgba(var(--color-accent-rgb), 0.1);
    padding: 4px 10px;
    border-radius: var(--radius-lg);
}

.kq-hero-card-body {
    padding: 16px 20px;
    flex: 1;
}

.kq-hero-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--kq-text);
    margin: 0 0 8px 0;
}

.kq-hero-desc {
    font-size: 14px;
    color: var(--kq-text-muted);
    line-height: 1.5;
    margin: 0 0 12px 0;
}

.kq-hero-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 12px;
    color: var(--kq-text-muted);
}

.kq-hero-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.kq-hero-card-footer {
    padding: 0 20px 20px 20px;
}

.kq-hero-btn {
    width: 100%;
    padding: 12px 20px;
    background: linear-gradient(135deg, var(--kq-primary) 0%, #0891b2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.kq-hero-btn:hover {
    background: linear-gradient(135deg, #0891b2 0%, var(--kq-primary) 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(var(--color-accent-rgb), 0.3);
}

.kq-hero-arrow {
    font-size: 18px;
    transition: transform 0.2s ease;
}

.kq-hero-card:hover .kq-hero-arrow {
    transform: translateX(4px);
}

/* Legacy Topics Grid (falls noch benötigt) */
.kq-topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--spacing-md);
}

.kq-topic-card {
    background: var(--kq-bg-card);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius);
    padding: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.kq-topic-card:hover {
    border-color: var(--kq-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(var(--color-accent-rgb), 0.15);
}

.kq-topic-card .kq-topic-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.kq-topic-card h4 {
    font-size: 16px;
    color: var(--kq-text);
    margin: 0 0 6px 0;
}

.kq-topic-card p {
    font-size: 13px;
    color: var(--kq-text-muted);
    margin: 0 0 12px 0;
}

.kq-topic-meta {
    display: flex;
    gap: var(--space-3);
    font-size: 11px;
    color: var(--kq-text-muted);
}

.kq-topic-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* ============================================================================
   CUSTOM TOPIC INPUT
   ============================================================================ */
.kq-custom-topic-section {
    padding: 16px 0 0 0;
}

.kq-custom-input-row {
    display: flex;
    gap: var(--space-3);
}

.kq-input {
    flex: 1;
    padding: 12px 16px;
    background: var(--kq-bg-card);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius-sm);
    color: var(--kq-text);
    font-size: 14px;
    transition: border-color 0.2s ease;
}

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

.kq-input::placeholder {
    color: var(--kq-text-muted);
}

/* ============================================================================
   GRAPH SUGGESTIONS
   ============================================================================ */
.kq-graph-suggestions {
    margin-bottom: 24px;
}

.kq-suggestion-group {
    margin-bottom: 20px;
}

.kq-suggestion-group h4 {
    font-size: 14px;
    color: var(--kq-text);
    margin: 0 0 12px 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.kq-suggestion-cards {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.kq-suggestion-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 14px 18px;
    background: var(--kq-bg-card);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 180px;
    max-width: 280px;
}

.kq-suggestion-card:hover {
    border-color: var(--kq-primary);
    background: rgba(139, 92, 246, 0.1);
    transform: translateY(-2px);
}

.kq-suggestion-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--kq-text);
}

.kq-suggestion-desc {
    font-size: 12px;
    color: var(--kq-text-muted);
    line-height: 1.4;
}

/* PDF Upload Section */
.kq-pdf-upload-section {
    padding: 16px 0 0 0;
}

.kq-suggestion-badge {
    font-size: 11px;
    color: var(--kq-primary);
    margin-top: 4px;
}

/* ============================================================================
   SAVED CUSTOM TOPICS
   ============================================================================ */
.kq-saved-topics-section {
    margin-top: 32px;
}

.kq-saved-topics-section h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--kq-text);
    margin: 0 0 16px 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.kq-saved-topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-3);
}

.kq-saved-topic-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: 16px;
    background: var(--kq-bg-card);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius-sm);
    transition: all 0.2s ease;
}

.kq-saved-topic-card:hover {
    border-color: var(--kq-primary);
}

.kq-saved-topic-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.kq-saved-topic-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--kq-text);
    flex: 1;
    word-break: break-word;
}

.kq-saved-topic-delete {
    background: transparent;
    border: none;
    color: var(--kq-text-muted);
    cursor: pointer;
    padding: 2px;
    font-size: 14px;
    opacity: 0.6;
    transition: all 0.2s ease;
}

.kq-saved-topic-delete:hover {
    color: var(--kq-danger);
    opacity: 1;
}

.kq-saved-topic-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    font-size: 11px;
    color: var(--kq-text-muted);
}

.kq-saved-topic-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.kq-saved-topic-actions {
    margin-top: 8px;
}

.kq-saved-topic-play {
    width: 100%;
    padding: 8px 12px;
    background: linear-gradient(135deg, var(--kq-primary), var(--kq-secondary));
    color: white;
    border: none;
    border-radius: var(--kq-radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.kq-saved-topic-play:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

/* Empty State for saved topics */
.kq-saved-topics-empty {
    text-align: center;
    padding: 24px;
    color: var(--kq-text-muted);
    font-size: 13px;
}

/* ============================================================================
   QUIZ TAB - Active Quiz
   ============================================================================ */
.kq-quiz-container {
    max-width: 700px;
    margin: 0 auto;
}

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

.kq-progress-info {
    font-size: 14px;
    color: var(--kq-text-muted);
}

.kq-progress-info strong {
    color: var(--kq-primary);
}

.kq-timer {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--kq-text);
}

.kq-timer.warning {
    color: var(--kq-warning);
}

.kq-timer.danger {
    color: var(--kq-danger);
    animation: kq-pulse 0.5s ease infinite alternate;
}

@keyframes kq-pulse {
    to { opacity: 0.6; }
}

.kq-question-card {
    background: var(--kq-bg-card);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius);
    padding: 28px;
    margin-bottom: 20px;
}

.kq-question-text {
    font-size: 18px;
    color: var(--kq-text);
    line-height: 1.6;
    margin-bottom: 24px;
}

.kq-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.kq-option {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

.kq-option:hover:not(.disabled) {
    background: rgba(var(--color-accent-rgb), 0.08);
    border-color: var(--kq-primary);
}

.kq-option.selected {
    background: rgba(var(--color-accent-rgb), 0.15);
    border-color: var(--kq-primary);
}

.kq-option.correct {
    background: rgba(var(--color-success-rgb), 0.15);
    border-color: var(--kq-success);
}

.kq-option.incorrect {
    background: rgba(239, 68, 68, 0.15);
    border-color: var(--kq-danger);
}

.kq-option.disabled {
    pointer-events: none;
    opacity: 0.7;
}

.kq-option-marker {
    width: 28px;
    height: 28px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    color: var(--kq-text-muted);
    flex-shrink: 0;
}

.kq-option.selected .kq-option-marker {
    background: var(--kq-primary);
    color: white;
}

.kq-option.correct .kq-option-marker {
    background: var(--kq-success);
    color: white;
}

.kq-option.incorrect .kq-option-marker {
    background: var(--kq-danger);
    color: white;
}

.kq-option-text {
    flex: 1;
    font-size: 15px;
    color: var(--kq-text);
}

/* Explanation after answer */
.kq-explanation {
    background: rgba(var(--color-accent-rgb), 0.08);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius-sm);
    padding: 16px 20px;
    margin-top: 20px;
}

.kq-explanation-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--kq-primary);
    margin-bottom: 8px;
}

.kq-explanation-text {
    font-size: 14px;
    color: var(--kq-text);
    line-height: 1.6;
}

/* Quiz Actions */
.kq-quiz-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    margin-top: 24px;
}

/* ============================================================================
   BADGES TAB
   ============================================================================ */
.kq-badges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--spacing-md);
}

.kq-badge-card {
    background: var(--kq-bg-card);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius);
    padding: 20px;
    text-align: center;
    transition: all 0.2s ease;
}

.kq-badge-card.locked {
    opacity: 0.5;
    filter: grayscale(0.8);
}

.kq-badge-card.unlocked {
    border-color: var(--kq-xp-gold);
    box-shadow: 0 0 20px rgba(251, 191, 36, 0.15);
}

.kq-badge-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.kq-badge-card h4 {
    font-size: 14px;
    color: var(--kq-text);
    margin: 0 0 6px 0;
}

.kq-badge-card p {
    font-size: 12px;
    color: var(--kq-text-muted);
    margin: 0;
}

.kq-badge-status {
    margin-top: 10px;
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 10px;
    display: inline-block;
}

.kq-badge-card.locked .kq-badge-status {
    background: rgba(100, 116, 139, 0.2);
    color: var(--kq-secondary);
}

.kq-badge-card.unlocked .kq-badge-status {
    background: rgba(251, 191, 36, 0.2);
    color: var(--kq-xp-gold);
}

/* ============================================================================
   STATS TAB
   ============================================================================ */
.kq-stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.kq-stats-section {
    background: var(--kq-bg-card);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius);
    padding: 20px;
}

.kq-stats-section h3 {
    font-size: 14px;
    color: var(--kq-text-muted);
    margin: 0 0 16px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.kq-stats-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.kq-stats-row:last-child {
    border-bottom: none;
}

.kq-stats-label {
    font-size: 14px;
    color: var(--kq-text);
}

.kq-stats-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--kq-primary);
}

/* ============================================================================
   DASHBOARD - KOMPAKTE STATS-ÜBERSICHT
   ============================================================================ */
.kq-dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-3);
    margin-bottom: 20px;
}

.kq-stat-card-compact {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius-sm);
    padding: 14px;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    transition: all 0.3s ease;
}

.kq-stat-card-compact:hover {
    background: rgba(var(--color-accent-rgb), 0.1);
    border-color: var(--kq-primary);
    box-shadow: 0 4px 12px rgba(var(--color-accent-rgb), 0.15);
    transform: translateY(-2px);
}

.kq-stat-card-compact.kq-level-card {
    grid-column: span 2;
    background: linear-gradient(135deg,
        rgba(var(--color-accent-rgb), 0.15),
        rgba(34, 211, 238, 0.1));
    border-color: rgba(var(--color-accent-rgb), 0.3);
}

.kq-stat-icon-compact {
    font-size: 32px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--color-accent-rgb), 0.1);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.kq-stat-info-compact {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.kq-stat-info-compact .kq-stat-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--kq-text-muted);
    font-weight: 600;
}

.kq-stat-info-compact .kq-stat-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--kq-text);
}

/* Schnellstart Button */
.kq-quick-start-compact {
    margin-bottom: 24px;
    text-align: center;
}

.kq-quick-start-compact .kq-btn {
    width: 100%;
    max-width: 400px;
}

/* ============================================================================
   SETTINGS TAB - MARKETING HERO (kept for reference but not used in compact view)
   ============================================================================ */
.kq-marketing-hero {
    background: linear-gradient(135deg,
        rgba(var(--color-accent-rgb), 0.1) 0%,
        rgba(var(--color-secondary-rgb), 0.08) 50%,
        rgba(168, 85, 247, 0.06) 100%);
    border: 1px solid rgba(var(--color-accent-rgb), 0.2);
    border-radius: var(--kq-radius);
    padding: 24px;
    margin-bottom: 24px;
    text-align: center;
}

.kq-marketing-badge {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, rgba(var(--color-accent-rgb), 0.2), rgba(var(--color-secondary-rgb), 0.2));
    border: 1px solid rgba(var(--color-accent-rgb), 0.3);
    border-radius: var(--radius-2xl);
    font-size: 12px;
    font-weight: 600;
    color: var(--kq-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.kq-marketing-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--kq-text);
    margin: 0 0 8px 0;
    background: linear-gradient(135deg, var(--color-accent), var(--color-secondary), #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.kq-marketing-subtitle {
    font-size: 16px;
    color: var(--kq-text-muted);
    margin: 0 0 20px 0;
}

.kq-marketing-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
    margin-bottom: 20px;
    text-align: left;
}

.kq-marketing-feature {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
}

.kq-feature-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.kq-feature-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.kq-feature-text strong {
    font-size: 13px;
    color: var(--kq-text);
}

.kq-feature-text span {
    font-size: 11px;
    color: var(--kq-text-muted);
}

.kq-marketing-cta {
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.kq-marketing-target {
    font-size: 13px;
    color: var(--kq-text-muted);
    margin: 0;
}

.kq-marketing-target strong {
    color: var(--kq-primary);
}

/* ============================================================================
   SETTINGS TAB
   ============================================================================ */
.kq-settings-container {
    max-width: 600px;
}

.kq-settings-group {
    margin-bottom: 24px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius);
    overflow: hidden;
    transition: all 0.3s ease;
}

/* Collapsible Header */
.kq-settings-group.kq-collapsible .kq-settings-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    margin: 0;
    cursor: pointer;
    background: rgba(var(--color-accent-rgb), 0.05);
    border-bottom: 1px solid var(--kq-border);
    transition: all 0.2s ease;
    user-select: none;
}

.kq-settings-group.kq-collapsible .kq-settings-header:hover {
    background: rgba(var(--color-accent-rgb), 0.1);
}

.kq-collapse-icon {
    font-size: 12px;
    transition: transform 0.3s ease;
    color: var(--kq-primary);
}

.kq-settings-group.collapsed .kq-collapse-icon {
    transform: rotate(-90deg);
}

/* Settings Content (collapsible) */
.kq-settings-content {
    padding: 16px;
    max-height: 2000px;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.kq-settings-group.collapsed .kq-settings-content {
    max-height: 0;
    padding: 0 16px;
}

.kq-settings-group h3 {
    font-size: 14px;
    color: var(--kq-text-muted);
    margin: 0 0 12px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Non-collapsible groups */
.kq-settings-group:not(.kq-collapsible) {
    padding: 16px;
}

.kq-setting-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    background: var(--kq-bg-card);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius-sm);
    margin-bottom: 8px;
}

.kq-setting-label {
    font-size: 14px;
    color: var(--kq-text);
}

.kq-setting-desc {
    font-size: 12px;
    color: var(--kq-text-muted);
    margin-top: 2px;
}

/* Toggle Switch */
.kq-toggle {
    position: relative;
    width: 48px;
    height: 26px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 13px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.kq-toggle.active {
    background: var(--kq-primary);
}

.kq-toggle::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: transform 0.2s ease;
}

.kq-toggle.active::after {
    transform: translateX(22px);
}

/* Setting Row Vertical Layout (for adaptive difficulty) */
.kq-setting-row.kq-setting-row-vertical {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
}

/* Adaptive Difficulty Selector */
.kq-adaptive-selector {
    display: flex;
    gap: var(--spacing-sm);
    width: 100%;
}

.kq-adaptive-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 12px 8px;
    background: var(--glass-bg-light);
    border: 2px solid var(--kq-border);
    border-radius: var(--kq-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

.kq-adaptive-btn:hover {
    border-color: var(--kq-primary);
    background: rgba(139, 92, 246, 0.1);
}

.kq-adaptive-btn.active {
    border-color: var(--kq-primary);
    background: rgba(139, 92, 246, 0.2);
}

.kq-adaptive-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--kq-text);
}

.kq-adaptive-desc {
    font-size: 11px;
    color: var(--kq-text-muted);
    text-align: center;
    line-height: 1.3;
}

.kq-adaptive-btn.active .kq-adaptive-name {
    color: var(--kq-primary);
}

/* ============================================================================
   BUTTONS
   ============================================================================ */
.kq-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: var(--kq-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    pointer-events: auto;
}

.kq-btn-primary {
    background: linear-gradient(135deg,
        var(--kq-primary) 0%,
        var(--kq-primary-hover) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(var(--color-accent-rgb), 0.3);
}

.kq-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(var(--color-accent-rgb), 0.4);
}

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

.kq-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
}

.kq-btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

/* ============================================================================
   UTILITY CLASSES
   ============================================================================ */
.kq-hidden {
    display: none !important;
}

.kq-text-center {
    text-align: center;
}

.kq-mt-20 {
    margin-top: 20px;
}

.kq-mb-20 {
    margin-bottom: 20px;
}

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


.kq-content::-webkit-scrollbar-track {
    background: transparent;
}

.kq-content::-webkit-scrollbar-thumb {
    background: rgba(var(--color-accent-rgb), 0.3);
    border-radius: 3px;
}

.kq-content::-webkit-scrollbar-thumb:hover {
    background: rgba(var(--color-accent-rgb), 0.5);
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */
@media (max-width: 768px) {
    #knowledge-quiz-window {
        left: 2%;
        width: 96%;
        top: 60px;
        max-height: calc(100vh - 80px);
    }

    .kq-sidebar {
        width: 56px;
    }

    .kq-sidebar:hover {
        width: 56px;
    }

    .kq-nav-label {
        display: none;
    }

    .kq-content {
        padding: 16px;
    }

    .kq-footer {
        flex-direction: column;
        gap: var(--space-3);
    }

    .kq-xp-bar {
        max-width: 100%;
    }
}

/* ============================================================================
   PHASE 2: GAMIFICATION ENHANCEMENTS
   ============================================================================ */

/* ----------------------------------------------------------------------------
   STREAK FREEZE INDICATOR
   ---------------------------------------------------------------------------- */
.kq-streak-freeze {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 4px 8px;
    background: rgba(147, 197, 253, 0.15);
    border-radius: var(--radius-lg);
    font-size: 12px;
    color: #93c5fd;
    cursor: help;
}

/* ----------------------------------------------------------------------------
   LEVEL UP OVERLAY
   ---------------------------------------------------------------------------- */
.kq-level-up-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(var(--glass-blur-md));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-dropdown);
    animation: kq-fade-in 0.3s ease;
}

.kq-level-up-overlay.kq-fade-out {
    animation: kq-fade-out 0.3s ease forwards;
}

.kq-level-up-content {
    text-align: center;
    animation: kq-scale-in 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.kq-level-up-icon {
    font-size: 80px;
    animation: kq-bounce 0.6s ease infinite;
}

.kq-level-up-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--kq-xp-gold);
    text-shadow: 0 0 30px rgba(251, 191, 36, 0.5);
    margin: 20px 0 10px;
}

.kq-level-up-level {
    font-size: 72px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--kq-primary), var(--kq-xp-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.kq-level-up-rank {
    font-size: 24px;
    color: var(--kq-primary);
    margin-bottom: 8px;
}

.kq-level-up-message {
    font-size: 16px;
    color: var(--kq-text-muted);
    margin-bottom: 30px;
}

/* ----------------------------------------------------------------------------
   TOAST NOTIFICATIONS
   ---------------------------------------------------------------------------- */
.kq-toast-container {
    position: fixed;
    top: 100px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    z-index: var(--z-dropdown);
    pointer-events: none;
}

.kq-toast {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 16px 20px;
    background: var(--kq-bg-card);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    transform: translateX(120%);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    pointer-events: auto;
}

.kq-toast.kq-toast-visible {
    transform: translateX(0);
}

.kq-toast-icon {
    font-size: 32px;
}

.kq-toast-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--kq-text);
}

.kq-toast-message {
    font-size: 12px;
    color: var(--kq-text-muted);
}

.kq-toast-streak {
    border-color: #f97316;
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.2), var(--kq-bg-card));
}

.kq-toast-badge {
    border-color: var(--kq-xp-gold);
    background: linear-gradient(135deg, rgba(251, 191, 36, 0.2), var(--kq-bg-card));
}

/* ----------------------------------------------------------------------------
   XP POPUP
   ---------------------------------------------------------------------------- */
.kq-xp-popup {
    position: fixed;
    font-size: 20px;
    font-weight: 700;
    color: var(--kq-xp-gold);
    text-shadow: 0 0 10px rgba(251, 191, 36, 0.8);
    pointer-events: none;
    z-index: var(--z-dropdown);
    transform: translate(-50%, 0);
    opacity: 1;
    transition: all 0.5s ease-out;
}

.kq-xp-popup.kq-xp-popup-animate {
    transform: translate(-50%, -50px);
    opacity: 0;
}

/* ----------------------------------------------------------------------------
   POWER-UPS PANEL (IN QUIZ)
   ---------------------------------------------------------------------------- */
.kq-powerups {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--kq-border);
}

.kq-powerup-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 12px 16px;
    background: rgba(100, 116, 139, 0.2);
    border: 1px solid rgba(100, 116, 139, 0.3);
    border-radius: var(--kq-radius-sm);
    color: var(--kq-text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 80px;
}

.kq-powerup-btn:not(.disabled):hover {
    background: rgba(var(--color-accent-rgb), 0.2);
    border-color: var(--kq-primary);
    color: var(--kq-text);
    transform: translateY(-2px);
}

.kq-powerup-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.kq-powerup-icon {
    font-size: 24px;
}

.kq-powerup-label {
    font-size: 11px;
    font-weight: 500;
}

.kq-powerup-uses {
    font-size: 10px;
    color: var(--kq-text-muted);
}

/* ----------------------------------------------------------------------------
   BADGE PROGRESS CARD
   ---------------------------------------------------------------------------- */
.kq-badge-card {
    position: relative;
    overflow: hidden;
}

.kq-badge-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: rgba(100, 116, 139, 0.3);
}

.kq-badge-progress-fill {
    height: 100%;
    background: var(--kq-primary);
    transition: width 0.3s ease;
}

.kq-badge-progress-text {
    font-size: 11px;
    color: var(--kq-text-muted);
    margin-top: 8px;
}

/* ----------------------------------------------------------------------------
   STREAK MILESTONE BADGE
   ---------------------------------------------------------------------------- */
.kq-streak-milestone {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.3), rgba(239, 68, 68, 0.2));
    border: 1px solid rgba(249, 115, 22, 0.5);
    border-radius: var(--radius-2xl);
    font-size: 12px;
    font-weight: 600;
    color: #fdba74;
}

/* ----------------------------------------------------------------------------
   ANIMATIONS
   ---------------------------------------------------------------------------- */
@keyframes kq-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes kq-fade-out {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes kq-scale-in {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes kq-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes kq-pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(var(--color-accent-rgb), 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(var(--color-accent-rgb), 0.6);
    }
}

/* ============================================================================
   VOICE MODE
   ============================================================================ */

/* Voice Status in Header */
.kq-header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.kq-voice-status {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: rgba(139, 92, 246, 0.15);
    border-radius: var(--radius-2xl);
    font-size: 12px;
    color: var(--kq-primary);
}

.kq-voice-status-icon {
    font-size: 14px;
}

/* Voice Answer Section */
.kq-voice-answer-section {
    margin-top: 20px;
    padding: 16px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(var(--color-accent-rgb), 0.1));
    border-radius: var(--kq-radius-sm);
    text-align: center;
}

.kq-voice-answer-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--kq-primary), var(--kq-secondary));
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.kq-voice-answer-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

.kq-voice-answer-btn.listening {
    background: linear-gradient(135deg, #ef4444, #f97316);
    animation: kq-listening-pulse 1.5s ease infinite;
}

.kq-voice-btn-icon {
    font-size: 20px;
}

.kq-voice-hint {
    margin-top: 10px;
    font-size: 12px;
    color: var(--kq-text-muted);
}

@keyframes kq-listening-pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4);
    }
    50% {
        transform: scale(1.02);
        box-shadow: 0 0 0 15px rgba(239, 68, 68, 0);
    }
}

/* Pulsing animation class */
.kq-pulse {
    animation: kq-pulse-anim 1s ease infinite;
}

@keyframes kq-pulse-anim {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Voice selected option highlight */
.kq-option.voice-selected {
    border-color: var(--kq-primary) !important;
    background: rgba(139, 92, 246, 0.2) !important;
    transform: scale(1.02);
}

/* Voice Mode Settings */
.kq-voice-mode-selector {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 12px;
}

.kq-voice-mode-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 14px 12px;
    background: rgba(100, 116, 139, 0.2);
    border: 2px solid transparent;
    border-radius: var(--kq-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

.kq-voice-mode-btn:hover {
    background: rgba(139, 92, 246, 0.15);
    border-color: rgba(139, 92, 246, 0.3);
}

.kq-voice-mode-btn.active {
    background: rgba(139, 92, 246, 0.2);
    border-color: var(--kq-primary);
}

.kq-voice-icon {
    font-size: 24px;
}

.kq-voice-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--kq-text);
}

.kq-voice-desc {
    font-size: 11px;
    color: var(--kq-text-muted);
    text-align: center;
}

/* Voice unavailable warning */
.kq-voice-unavailable {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: 16px;
    background: rgba(251, 191, 36, 0.15);
    border-radius: var(--kq-radius-sm);
    border-left: 3px solid var(--kq-warning);
}

.kq-voice-unavailable span:first-child {
    font-size: 20px;
}

.kq-voice-unavailable div {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.kq-voice-unavailable strong {
    color: var(--kq-warning);
    font-size: 14px;
}

.kq-voice-unavailable div span {
    font-size: 12px;
    color: var(--kq-text-muted);
}

/* Slider for voice speed */
.kq-slider {
    -webkit-appearance: none;
    width: 120px;
    height: 6px;
    background: rgba(100, 116, 139, 0.3);
    border-radius: 3px;
    outline: none;
}

.kq-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--kq-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
}

.kq-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 10px rgba(139, 92, 246, 0.5);
}

.kq-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--kq-primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

/* ============================================================================
   PDF UPLOAD
   ============================================================================ */
.kq-pdf-upload-section {
    /* Styles now in collapsible section */
}

.kq-pdf-upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px 20px;
    border: 2px dashed rgba(139, 92, 246, 0.4);
    border-radius: var(--kq-radius-sm);
    background: var(--glass-bg-dark);
    cursor: pointer;
    transition: all 0.3s ease;
}

.kq-pdf-upload-area:hover {
    border-color: var(--kq-primary);
    background: rgba(139, 92, 246, 0.1);
}

.kq-pdf-upload-area.loading {
    opacity: 0.7;
    pointer-events: none;
}

.kq-pdf-upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.kq-pdf-icon {
    font-size: 36px;
}

.kq-pdf-text {
    font-size: 14px;
    color: var(--kq-text);
    font-weight: 500;
}

.kq-pdf-hint {
    font-size: 12px;
    color: var(--kq-text-muted);
}

.kq-pdf-status {
    margin-top: 12px;
}

.kq-pdf-loading {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: rgba(139, 92, 246, 0.15);
    border-radius: var(--kq-radius-sm);
    color: var(--kq-primary);
}

.kq-pdf-success {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: 12px 16px;
    background: rgba(var(--color-success-rgb), 0.15);
    border-radius: var(--kq-radius-sm);
    color: var(--kq-success);
}

.kq-pdf-error {
    display: block;
    padding: 12px 16px;
    background: rgba(239, 68, 68, 0.15);
    border-radius: var(--kq-radius-sm);
    color: var(--kq-danger);
}

.kq-spinner {
    animation: kq-spin 1s linear infinite;
}

@keyframes kq-spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Quick Win: Streak Pulse Animation */
@keyframes streakPulse {
    0% {
        transform: scale(0.9);
        opacity: 0;
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.kq-btn-small {
    padding: 6px 12px !important;
    font-size: 12px !important;
}
/* ============================================================================
   EXAM MODE
   ============================================================================ */

/* Exam Mode Grid */
.kq-exam-mode-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-sm);
}

.kq-exam-mode-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 12px 8px;
    background: var(--kq-bg-card);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

.kq-exam-mode-card:hover {
    border-color: var(--kq-primary);
    background: rgba(var(--color-accent-rgb), 0.1);
    transform: translateY(-2px);
}

.kq-exam-mode-card.kq-exam-mode-active {
    border-color: var(--kq-primary);
    background: rgba(var(--color-accent-rgb), 0.2);
    box-shadow: 0 0 12px var(--kq-primary-glow);
}

.kq-exam-mode-icon {
    font-size: 24px;
}

.kq-exam-mode-name {
    font-size: 11px;
    font-weight: 500;
    color: var(--kq-text);
    text-align: center;
}

.kq-exam-mode-bonus {
    font-size: 10px;
    font-weight: 600;
    color: var(--kq-xp-gold);
    background: rgba(251, 191, 36, 0.2);
    padding: 2px 6px;
    border-radius: var(--radius-xs);
}

/* Exam Preset Grid */
.kq-exam-preset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
}

.kq-exam-preset-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 14px 10px;
    background: var(--kq-bg-card);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

.kq-exam-preset-card:hover {
    border-color: var(--kq-primary);
    background: rgba(var(--color-accent-rgb), 0.1);
}

.kq-exam-preset-card.kq-exam-preset-active {
    border-color: var(--kq-success);
    background: rgba(var(--color-success-rgb), 0.15);
    box-shadow: 0 0 12px rgba(var(--color-success-rgb), 0.3);
}

.kq-exam-preset-icon {
    font-size: 28px;
}

.kq-exam-preset-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--kq-text);
    text-align: center;
}

.kq-exam-preset-info {
    font-size: 10px;
    color: var(--kq-text-muted);
}

/* Exam Mode Badge */
.kq-exam-mode-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-left: 10px;
    padding: 3px 8px;
    font-size: 11px;
    font-weight: 500;
    color: var(--kq-primary);
    background: rgba(var(--color-accent-rgb), 0.15);
    border: 1px solid rgba(var(--color-accent-rgb), 0.3);
    border-radius: var(--radius-lg);
}

/* Exam Timer */
.kq-exam-timer {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 16px;
    font-weight: 600;
    font-family: var(--font-mono, monospace);
    color: var(--kq-text);
    background: var(--glass-bg-dark);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius-sm);
}

.kq-exam-timer.kq-timer-warning {
    color: var(--kq-warning);
    border-color: rgba(245, 158, 11, 0.5);
    background: rgba(245, 158, 11, 0.1);
    animation: kq-timer-pulse 1s ease-in-out infinite;
}

.kq-exam-timer.kq-timer-critical {
    color: var(--kq-danger);
    border-color: rgba(239, 68, 68, 0.5);
    background: rgba(239, 68, 68, 0.15);
    animation: kq-timer-pulse 0.5s ease-in-out infinite;
}

@keyframes kq-timer-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.02); }
}

/* Timer Alerts */
.kq-timer-alert {
    position: absolute;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--kq-radius-sm);
    z-index: 100;
    animation: kq-alert-slide 0.3s ease-out;
}

.kq-timer-alert-low {
    color: var(--kq-warning);
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.4);
}

.kq-timer-alert-critical {
    color: var(--kq-danger);
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.5);
}

@keyframes kq-alert-slide {
    from { opacity: 0; transform: translateX(-50%) translateY(-10px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Expert Mode (Game Over on wrong) */
.kq-quiz-container.kq-expert-mode {
    border: 2px solid rgba(239, 68, 68, 0.3);
}

.kq-quiz-container.kq-expert-mode::before {
    content: '💀 EXPERT MODE - EIN FEHLER = GAME OVER!';
    display: block;
    padding: 6px 12px;
    margin-bottom: 10px;
    font-size: 11px;
    font-weight: 600;
    color: var(--kq-danger);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--kq-radius-sm);
    text-align: center;
}

/* ============================================================================
   ANALYTICS DASHBOARD
   ============================================================================ */

.kq-analytics-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Quick Stats Row */
.kq-quick-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-3);
}

.kq-quick-stat {
    text-align: center;
    padding: 16px 12px;
    background: var(--kq-bg-card);
    border: 1px solid var(--kq-border);
    border-radius: var(--kq-radius);
}

.kq-quick-stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--kq-text);
    margin-bottom: 4px;
}

.kq-quick-stat-label {
    font-size: 11px;
    color: var(--kq-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Performance Trend Chart */
.kq-trend-chart {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-xs);
    height: 100px;
    padding: 10px;
    background: rgba(10, 15, 28, 0.5);
    border-radius: var(--kq-radius-sm);
}

.kq-trend-bar {
    flex: 1;
    min-width: 12px;
    transition: opacity 0.2s;
}

.kq-trend-bar:hover {
    opacity: 1 !important;
}

/* Level Display */
.kq-level-display {
    padding: 16px;
    background: rgba(var(--color-accent-rgb), 0.08);
    border-radius: var(--kq-radius);
}

/* Domain Row */
.kq-domain-row {
    margin-bottom: 14px;
}

.kq-domain-row:last-child {
    margin-bottom: 0;
}

/* Weakness Item */
.kq-weakness-item {
    transition: transform 0.2s, border-color 0.2s;
}

.kq-weakness-item:hover {
    transform: translateX(4px);
    border-color: rgba(239, 68, 68, 0.5);
}

/* Responsive Analytics */
@media (max-width: 700px) {
    .kq-quick-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .kq-quick-stat-value {
        font-size: 22px;
    }
}

/* Config Section */
.kq-config-section {
    margin-bottom: 20px;
}

.kq-config-section h4 {
    margin-bottom: 12px;
    color: var(--kq-text);
}

/* ============================================================================
   ONBOARDING MODAL
   ============================================================================ */
.kq-onboarding-modal {
    position: fixed;
    inset: 0;
    z-index: var(--z-dropdown);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: kq-modal-fade-in 0.3s ease;
}

@keyframes kq-modal-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.kq-onboarding-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(var(--glass-blur-md));
}

.kq-onboarding-content {
    position: relative;
    width: min(90%, 520px);
    max-height: 90vh;
    overflow-y: auto;
    background: linear-gradient(180deg, rgb(15, 22, 38) 0%, rgb(10, 16, 30) 100%);
    border: 1px solid rgba(var(--color-accent-rgb), 0.3);
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5), 0 0 60px rgba(var(--color-accent-rgb), 0.15);
    animation: kq-modal-slide-up 0.4s ease;
}

@keyframes kq-modal-slide-up {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.kq-onboarding-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    background: var(--glass-bg-light);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--kq-text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.kq-onboarding-close:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.4);
    color: #ef4444;
}

.kq-onboarding-header {
    text-align: center;
    margin-bottom: 28px;
}

.kq-onboarding-badge {
    display: inline-block;
    padding: 4px 14px;
    background: linear-gradient(135deg, rgba(var(--color-accent-rgb), 0.2), rgba(var(--color-secondary-rgb), 0.2));
    border: 1px solid rgba(var(--color-accent-rgb), 0.3);
    border-radius: var(--radius-2xl);
    font-size: 12px;
    font-weight: 600;
    color: var(--kq-primary);
    margin-bottom: 12px;
}

.kq-onboarding-header h2 {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 8px 0;
    background: linear-gradient(135deg, var(--color-accent), var(--color-secondary), #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.kq-onboarding-header p {
    font-size: 14px;
    color: var(--kq-text-muted);
    margin: 0;
}

.kq-onboarding-steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: 24px;
}

.kq-onboarding-step {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

.kq-step-number {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--kq-primary), var(--color-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.kq-step-content h4 {
    margin: 0 0 4px 0;
    font-size: 14px;
    color: var(--kq-text);
}

.kq-step-content p {
    margin: 0;
    font-size: 12px;
    color: var(--kq-text-muted);
    line-height: 1.5;
}

.kq-step-content strong {
    color: var(--kq-primary);
}

.kq-onboarding-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: 24px;
}

.kq-onboarding-feature {
    padding: 6px 12px;
    background: rgba(var(--color-accent-rgb), 0.1);
    border: 1px solid rgba(var(--color-accent-rgb), 0.2);
    border-radius: var(--radius-2xl);
    font-size: 12px;
    color: var(--kq-text-muted);
}

.kq-onboarding-start {
    width: 100%;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--kq-primary), var(--color-secondary));
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all 0.3s;
}

.kq-onboarding-start:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(var(--color-accent-rgb), 0.4);
}