:root {
    --bg-color: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --accent: #00ff99;
    --accent-hover: #33ffaa;
    --card-bg: rgba(30, 30, 46, 0.6);
    --card-border: rgba(255, 255, 255, 0.1);
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Dynamic Background */
.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out alternate;
}

#orb1 {
    width: 400px;
    height: 400px;
    background: rgba(0, 255, 153, 0.15);
    top: -100px;
    left: -100px;
}

#orb2 {
    width: 500px;
    height: 500px;
    background: rgba(100, 100, 255, 0.1);
    bottom: -200px;
    right: -100px;
    animation-delay: -5s;
}

#orb3 {
    width: 300px;
    height: 300px;
    background: rgba(255, 100, 200, 0.1);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--card-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--card-border) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 100;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(15, 15, 26, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--card-border);
    padding: 1rem 0;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-logo {
    width: 32px;
    height: 32px;
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text-primary);
}

.github-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.nav-btn {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-color);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 255, 153, 0.3);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6rem;
    gap: 4rem;
}

.hero-content {
    flex: 1;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 255, 153, 0.1);
    border: 1px solid rgba(0, 255, 153, 0.2);
    color: var(--accent);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 4.5rem;
    line-height: 1.1;
    font-weight: 700;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
}

.text-gradient {
    background: linear-gradient(135deg, #00ff99, #00b3ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.hero-visual {
    flex: 1;
    perspective: 1000px;
}

/* App Window Mockup */
.app-window {
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--card-border);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    transform: rotateY(-10deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.app-window:hover {
    transform: rotateY(0) rotateX(0);
}

.app-header {
    background: rgba(0, 0, 0, 0.2);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--card-border);
}

.app-dots {
    display: flex;
    gap: 6px;
}

.app-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ff5f56;
}

.app-dots span:nth-child(2) { background: #ffbd2e; }
.app-dots span:nth-child(3) { background: #27c93f; }

.app-title {
    flex: 1;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.app-screenshot {
    width: 100%;
    display: block;
}

/* Float Animation */
@keyframes float {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(2deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

.float-animation {
    animation: float 6s ease-in-out infinite;
}

/* Features Section */
.features {
    padding: 8rem 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: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 255, 153, 0.3);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(0, 255, 153, 0.1);
    color: var(--accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Gallery Section */
.screenshots {
    padding: 2rem 2rem 6rem;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.gallery-img {
    width: 100%;
    border-radius: 12px;
    border: 1px solid var(--card-border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    transition: transform 0.3s ease;
}

.gallery-img:hover {
    transform: scale(1.02);
}

/* Download Section */
.download-section {
    padding: 4rem 2rem 8rem;
}

.download-container {
    background: linear-gradient(135deg, rgba(30, 30, 46, 0.8), rgba(20, 20, 35, 0.9));
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.download-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.download-info h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.download-info p {
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.download-options {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    min-width: 220px;
    text-align: left;
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.2);
}

.download-btn.windows:hover { border-color: #00a4ef; box-shadow: 0 4px 15px rgba(0, 164, 239, 0.15); }
.download-btn.linux:hover { border-color: #f5a900; box-shadow: 0 4px 15px rgba(245, 169, 0, 0.15); }
.download-btn.universal:hover { border-color: #ea2d2e; box-shadow: 0 4px 15px rgba(234, 45, 46, 0.15); }

.dl-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.download-btn:hover .dl-icon {
    color: var(--text-primary);
}

.dl-text {
    display: flex;
    flex-direction: column;
}

.dl-os {
    font-weight: 600;
    font-size: 1.1rem;
}

.dl-format {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Footer */
footer {
    border-top: 1px solid var(--card-border);
    padding: 2rem 0;
    background: rgba(15, 15, 26, 0.8);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
}

footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Animations & Utilities */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 8rem;
    }
    
    .hero-subtitle {
        margin: 0 auto 2.5rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .nav-links a:not(.btn) {
        display: none;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* Gallery Section */
.gallery-section {
    padding-bottom: 5rem;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.gallery-item {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.gallery-item:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 204, 0, 0.3);
}

.gallery-item img {
    width: 100%;
    height: auto;
    object-fit: contain;
    object-position: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.2);
    display: block;
}

.gallery-caption {
    padding: 1rem;
    text-align: center;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
}