:root {
    --bg-dark: #0a0a0a;
    --card-bg: #121212;
    --accent: #00f2ff;
    --accent-glow: rgba(0, 242, 255, 0.4);
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --border: #222;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navigation */
header {
    background-color: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
    border-bottom: 1px solid var(--border);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: -0.5px;
}

.logo img {
    width: 32px;
    height: 32px;
}

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

.links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.links a:hover {
    color: var(--accent);
}

/* Hero Section */
.hero {
    padding: 8rem 2rem;
    text-align: center;
    background: radial-gradient(circle at center, rgba(0, 242, 255, 0.05) 0%, transparent 70%);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -1.5px;
    line-height: 1.1;
}

.accent {
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-glow);
}

.hero p {
    font-size: 1.4rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.cta-group {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

/* Buttons */
.btn {
    padding: 1.2rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    transition: transform 0.2s, box-shadow 0.2s;
    font-size: 1.1rem;
}

.btn-primary {
    background-color: var(--accent);
    color: #000;
    box-shadow: 0 4px 20px rgba(0, 242, 255, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 242, 255, 0.4);
}

.btn-secondary {
    background-color: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background-color: #1a1a1a;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
    display: inline-block;
    width: 100%;
    margin-top: 1rem;
}

.btn-outline:hover {
    background-color: var(--accent);
    color: #000;
}

/* Features */
.features {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--card-bg);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: border-color 0.3s;
}

.feature-card:hover {
    border-color: var(--accent);
}

.feature-card .icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
}

/* Showcase Section */
.showcase {
    max-width: 1200px;
    margin: 8rem auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.video-container {
    background-color: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border);
    margin-bottom: 4rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    transition: border-color 0.3s;
}

.video-container:hover {
    border-color: var(--accent);
}

.video-container video {
    width: 100%;
    display: block;
}

.video-caption {
    padding: 2.5rem;
    border-top: 1px solid var(--border);
}

.video-caption h3 {
    margin-bottom: 0.8rem;
    color: var(--accent);
    font-size: 1.8rem;
}

.video-caption p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 3rem;
}

.gallery-item {
    background-color: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform 0.3s, border-color 0.3s;
}

.gallery-item:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
}

.gallery-item img {
    width: 100%;
    height: auto;
    border-bottom: 1px solid var(--border);
}

.gallery-text {
    padding: 1.8rem;
}

.gallery-text h4 {
    margin-bottom: 0.8rem;
    color: var(--accent);
    font-size: 1.3rem;
}

.gallery-text p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.5;
}

/* Downloads */
.downloads {
    max-width: 1000px;
    margin: 8rem auto;
    padding: 0 2rem;
    text-align: center;
}

.downloads h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.download-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.download-item {
    background-color: var(--card-bg);
    padding: 3rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    text-align: left;
}

.download-item h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.download-item p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.instruction-box {
    background: rgba(255, 68, 68, 0.1);
    border: 1px solid #ff4444;
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 2rem;
    text-align: left;
}

.instruction-box h4 {
    color: #ff4444;
    margin-bottom: 0.8rem;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.instruction-box ul {
    list-style: none;
    color: var(--text-secondary);
}

.instruction-box ul li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.instruction-box ul li::before {
    content: "⚠️";
    position: absolute;
    left: 0;
}

.instruction-box .highlight {
    color: var(--text-primary);
    font-weight: 700;
}

/* Footer */
footer {
    border-top: 1px solid var(--border);
    padding: 4rem 2rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-content p {
    color: var(--text-secondary);
}

.social-links {
    display: flex;
    gap: 2rem;
}

.social-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--accent);
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    .hero { padding: 4rem 1rem; }
    .download-grid { grid-template-columns: 1fr; }
    .cta-group { flex-direction: column; }
    .footer-content { flex-direction: column; gap: 2rem; text-align: center; }
}