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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(to bottom, #f5f5f5, #ffffff);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

/* Video Container */
.video-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    flex-direction: column;
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.loading-text {
    position: absolute;
    bottom: 50px;
    font-size: 24px;
    color: #fff;
    animation: pulse 1.5s ease-in-out infinite;
    text-shadow: 0 0 20px rgba(0, 0, 0, 0.8);
    font-weight: bold;
}

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

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 30px 50px;
    border-radius: 50px;
    font-size: 1.5em;
    font-weight: bold;
    cursor: pointer;
    border: 3px solid white;
    transition: all 0.3s ease;
    z-index: 100;
    user-select: none;
}

.play-button:hover {
    background: rgba(0, 0, 0, 0.9);
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.hidden {
    display: none;
}

/* Header */
header {
    background: #ffffff;
    padding: 40px 20px;
    text-align: center;
    border-bottom: 3px solid #000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 3.5em;
    font-weight: 900;
    letter-spacing: -2px;
    color: #000;
}

/* Main Content */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

section {
    margin-bottom: 60px;
    animation: fadeIn 0.6s ease-in;
}

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

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: 80px;
}

.hero h2 {
    font-size: 2.8em;
    font-weight: 800;
    margin-bottom: 25px;
    color: #000;
    line-height: 1.2;
}

.hero h3 {
    font-size: 1.8em;
    font-weight: 700;
    margin-bottom: 40px;
    color: #000;
}

.watermark {
    font-size: 2em;
    font-weight: 900;
    letter-spacing: 8px;
    color: #0b0b0b;
    text-transform: uppercase;
    opacity: 0.3;
    margin-top: 40px;
}

.watermark.large {
    font-size: 4em;
    letter-spacing: 12px;
    margin: 60px 0;
}

/* Download Section */
.download-section {
    text-align: center;
    background: white;
    padding: 60px 40px;
    border: 2px solid #000;
}

.download-section h2 {
    font-size: 2em;
    font-weight: 700;
    margin-bottom: 50px;
    color: #000;
    line-height: 1.4;
}

.button-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.download-card {
    padding: 30px;
    background: #f9f9f9;
    border: 2px solid #000;
}

.download-card h3 {
    font-size: 1.5em;
    font-weight: 700;
    margin-bottom: 20px;
    color: #000;
}

.download-btn {
    display: inline-block;
    background: #000;
    color: white;
    padding: 15px 40px;
    text-decoration: none;
    font-weight: 700;
    border: 2px solid #000;
    transition: all 0.3s ease;
    font-size: 1em;
}

.download-btn:hover {
    background: white;
    color: #000;
}

/* Details Section */
.details-section {
    background: white;
    padding: 60px 40px;
    border: 2px solid #000;
}

.details-section h2 {
    font-size: 2em;
    font-weight: 700;
    margin-bottom: 40px;
    color: #000;
    text-align: center;
}

.details-list {
    list-style: none;
    max-width: 600px;
    margin: 0 auto;
}

.details-list li {
    padding: 15px 0;
    font-size: 1.1em;
    font-weight: 600;
    color: #333;
    border-bottom: 1px solid #eee;
}

.details-list li:last-child {
    border-bottom: none;
}

/* Stats Section */
.stats-section {
    background: white;
    padding: 60px 40px;
    border: 2px solid #000;
}

.stats-section h2 {
    font-size: 2em;
    font-weight: 700;
    margin-bottom: 40px;
    color: #000;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.stat-card {
    background: #f9f9f9;
    border: 2px solid #000;
    padding: 30px;
    text-align: center;
}

.stat-number {
    font-size: 3em;
    font-weight: 900;
    color: #000;
    margin-bottom: 15px;
}

.stat-text {
    font-size: 1.1em;
    font-weight: 600;
    color: #333;
    line-height: 1.3;
}

/* Expert Section */
.expert-section {
    background: white;
    padding: 60px 40px;
    border: 2px solid #000;
}

.expert-section h2 {
    font-size: 2em;
    font-weight: 700;
    margin-bottom: 40px;
    color: #000;
    text-align: center;
}

.expert-quotes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.quote {
    background: #f9f9f9;
    border: 2px solid #000;
    padding: 25px;
    font-style: italic;
}

.quote p {
    font-size: 1em;
    color: #333;
    margin-bottom: 15px;
    line-height: 1.5;
}

.quote p:first-child {
    font-weight: 600;
}

.author {
    font-weight: 700 !important;
    font-style: normal !important;
    color: #000 !important;
    margin-top: 15px !important;
}

/* FAQ Section */
.faq-section {
    background: white;
    padding: 60px 40px;
    border: 2px solid #000;
}

.faq-section h2 {
    font-size: 2em;
    font-weight: 700;
    margin-bottom: 40px;
    color: #000;
    text-align: center;
}

.faq-item {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 2px solid #eee;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item h4 {
    font-size: 1.3em;
    color: #000;
    margin-bottom: 10px;
    font-weight: 700;
}

.faq-item p {
    color: #333;
    line-height: 1.6;
    font-size: 1em;
}

/* Call to Action */
.call-to-action {
    background: white;
    padding: 60px 40px;
    border: 2px solid #000;
    text-align: center;
}

.call-to-action h2 {
    font-size: 2em;
    font-weight: 700;
    margin-bottom: 15px;
    color: #000;
}

.call-to-action p {
    font-size: 1.2em;
    color: #333;
    margin-bottom: 30px;
    font-weight: 600;
}

.share-button {
    background: #000;
    color: white;
    padding: 18px 50px;
    font-size: 1.1em;
    font-weight: 700;
    border: 2px solid #000;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 1px;
}

.share-button:hover {
    background: white;
    color: #000;
}

/* Footer */
footer {
    background: #ffffff;
    padding: 50px 40px;
    text-align: center;
    border-top: 3px solid #000;
    margin-top: 80px;
    border: 2px solid #000;
    border-top: 3px solid #000;
}

footer p {
    font-size: 0.95em;
    color: #333;
    margin: 12px 0;
    font-weight: 600;
}

footer a {
    color: #000;
    text-decoration: underline;
    font-weight: 700;
    transition: opacity 0.3s ease;
}

footer a:hover {
    opacity: 0.6;
}

.joke-credit {
    margin-top: 20px;
    font-style: italic;
    color: #666;
    font-weight: 600;
    font-size: 0.9em;
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 2.2em;
    }

    .hero h2 {
        font-size: 1.8em;
    }

    .hero h3 {
        font-size: 1.3em;
    }

    .download-section h2 {
        font-size: 1.5em;
    }

    .details-section h2 {
        font-size: 1.5em;
    }

    main {
        padding: 30px 15px;
    }

    section {
        padding: 30px 20px;
    }

    .watermark.large {
        font-size: 2.5em;
        letter-spacing: 6px;
    }
}