/* ============================================
   HNVG Sicherheitsschulung - Interaktiver Avatar
   "Wer wird Millionär?" Style Design
   ============================================ */

:root {
    /* Hauptfarben - Dunkel & Professionell */
    --color-primary: #1a365d;
    --color-secondary: #d69e2e;
    --color-accent: #c53030;
    
    /* Hintergrund-Gradient (WWM-Style) */
    --bg-dark: #0a0f1a;
    --bg-medium: #121a2e;
    --bg-light: #1a2540;
    
    /* Text & UI */
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Frage-Button Farben */
    --question-bg: linear-gradient(135deg, #1e3a5f 0%, #0d1f3c 100%);
    --question-border: #2d4a6f;
    --question-hover: linear-gradient(135deg, #2d4a77 0%, #1a365d 100%);
    --question-active: linear-gradient(135deg, #d69e2e 0%, #b7791f 100%);
    
    --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --border-radius: 12px;
    --transition: 0.3s ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--bg-dark);
    background-image: 
        radial-gradient(ellipse at top, rgba(26, 54, 93, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse at bottom, rgba(214, 158, 46, 0.1) 0%, transparent 50%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
}

.logo {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-hd {
    color: var(--text-primary);
}

.logo-ki {
    color: var(--color-secondary);
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: color var(--transition);
}

.nav-link:hover {
    color: var(--color-secondary);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 1rem 0 2rem;
}

/* Seitentitel */
.page-title {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
    font-weight: 600;
}

.title-hnvg {
    color: var(--text-primary);
}

.title-schulung {
    color: var(--color-secondary);
    margin-left: 0.5rem;
}

/* Avatar Section */
.avatar-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

/* Avatar Container */
.avatar-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    aspect-ratio: 16 / 9;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: var(--bg-medium);
    box-shadow: 
        0 0 0 1px rgba(214, 158, 46, 0.2),
        0 20px 60px rgba(0, 0, 0, 0.5),
        0 0 100px rgba(214, 158, 46, 0.1);
}

/* Avatar Video */
.avatar-video {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
    background: var(--bg-dark);
}

/* Placeholder */
.avatar-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
}

.avatar-placeholder.hidden {
    display: none;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.placeholder-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Start Session Button */
.start-session-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--color-secondary) 0%, #b7791f 100%);
    border: none;
    border-radius: 50px;
    color: var(--bg-dark);
    font-family: inherit;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 4px 20px rgba(214, 158, 46, 0.4);
}

.start-session-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 30px rgba(214, 158, 46, 0.5);
}

.start-session-btn svg {
    width: 24px;
    height: 24px;
}

/* HNVG Badge */
.hnvg-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.95);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    z-index: 20;
}

.badge-icon {
    color: var(--color-accent);
}

/* Video Controls */
.video-controls {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.75rem;
    z-index: 20;
    opacity: 0;
    transition: opacity var(--transition);
}

.avatar-container:hover .video-controls,
.video-controls.visible {
    opacity: 1;
}

.control-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    background: rgba(0, 0, 0, 0.7);
    color: var(--color-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.control-btn:hover {
    background: rgba(0, 0, 0, 0.9);
    border-color: var(--color-secondary);
    transform: scale(1.1);
}

.control-btn svg {
    width: 24px;
    height: 24px;
}

/* Status Indicator */
.status-indicator {
    position: absolute;
    top: 1rem;
    left: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 20px;
    font-size: 0.85rem;
    z-index: 20;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-muted);
    transition: background var(--transition);
}

.status-indicator.connecting .status-dot {
    background: var(--color-secondary);
    animation: pulse 1.5s infinite;
}

.status-indicator.active .status-dot {
    background: #22c55e;
}

.status-indicator.speaking .status-dot {
    background: var(--color-secondary);
    animation: pulse 0.5s infinite;
}

.status-indicator.error .status-dot {
    background: var(--color-accent);
}

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

/* Questions Section - WWM Style */
.questions-section {
    width: 100%;
    max-width: 800px;
}

.questions-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.questions-title svg {
    width: 28px;
    height: 28px;
    color: var(--color-secondary);
}

/* Question Buttons - WWM Style */
.question-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

/* Einzelne Frage zentriert */
.question-buttons.single-question {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
}

.question-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--question-bg);
    border: 2px solid var(--question-border);
    border-radius: 50px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    text-align: left;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.question-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s;
}

.question-btn:hover::before {
    transform: translateX(100%);
}

.question-btn:hover {
    background: var(--question-hover);
    border-color: var(--color-secondary);
    transform: scale(1.02);
    box-shadow: 0 0 20px rgba(214, 158, 46, 0.3);
}

.question-btn:active,
.question-btn.active {
    background: var(--question-active);
    border-color: var(--color-secondary);
    color: var(--bg-dark);
}

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

.question-letter {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(214, 158, 46, 0.2);
    border: 2px solid var(--color-secondary);
    border-radius: 50%;
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-secondary);
    flex-shrink: 0;
    transition: all var(--transition);
}

.question-btn:hover .question-letter,
.question-btn.active .question-letter {
    background: var(--color-secondary);
    color: var(--bg-dark);
}

.question-text {
    line-height: 1.4;
}

/* Footer */
.footer {
    text-align: right;
    padding: 1.5rem 0;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition);
}

.footer-link:hover {
    color: var(--color-secondary);
}

/* Loading Overlay */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 30;
    transition: all var(--transition);
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-progress {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: var(--color-secondary);
}

/* Play Overlay */
.play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 15, 26, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 25;
    transition: all var(--transition);
}

.play-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.start-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.25rem 2.5rem;
    background: linear-gradient(135deg, var(--color-secondary) 0%, #b7791f 100%);
    border: none;
    border-radius: 50px;
    color: var(--bg-dark);
    font-family: inherit;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow: 0 4px 30px rgba(214, 158, 46, 0.4);
}

.start-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 40px rgba(214, 158, 46, 0.5);
}

.start-btn svg {
    width: 28px;
    height: 28px;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--bg-light);
    border-top-color: var(--color-secondary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    margin-top: 1.5rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 1rem;
    }

    .nav {
        gap: 1.5rem;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .title-schulung {
        display: block;
        margin-left: 0;
        margin-top: 0.25rem;
    }

    .question-buttons {
        grid-template-columns: 1fr;
    }

    .question-btn {
        padding: 0.875rem 1.25rem;
        font-size: 0.9rem;
    }

    .question-letter {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }

    .control-btn {
        width: 44px;
        height: 44px;
    }

    .start-session-btn {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-light);
    border: 1px solid var(--question-border);
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    opacity: 0;
    transition: all var(--transition);
}

.toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.error {
    border-color: var(--color-accent);
}

.toast.success {
    border-color: #22c55e;
}