@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&family=Outfit:wght@400;700&display=swap');

:root {
    --bg: #030305;
    --glass: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --accent: #4facfe;
    --accent-glow: rgba(79, 172, 254, 0.5);
    --text: #e0e0e6;
    --text-dim: #a1a1aa;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Decoration */
body::before {
    content: '';
    position: fixed;
    top: -10%;
    right: -10%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    filter: blur(80px);
    z-index: -1;
    opacity: 0.3;
}

body::after {
    content: '';
    position: fixed;
    bottom: -10%;
    left: -10%;
    width: 50%;
    height: 50%;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.2) 0%, transparent 70%);
    filter: blur(80px);
    z-index: -1;
    opacity: 0.2;
}

/* Layout */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header/Hero */
header {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-top: 4rem;
}

.logo-container {
    position: relative;
    margin-bottom: 2rem;
}

.logo-container img {
    width: 120px;
    height: 120px;
    border-radius: 24px;
    box-shadow: 0 0 40px var(--accent-glow);
    animation: floating 3s ease-in-out infinite;
}

h1 {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(to bottom, #fff, #a1a1aa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.tagline {
    font-size: 1.25rem;
    color: var(--text-dim);
    margin-bottom: 3rem;
    max-width: 600px;
}

/* Button */
.btn-download {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    color: #000;
    padding: 1rem 2.5rem;
    border-radius: 99px;
    font-weight: 700;
    text-decoration: none;
    font-size: 1.1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 30px rgba(79, 172, 254, 0.4);
}

.btn-download:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 20px 40px rgba(79, 172, 254, 0.6);
}

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

.version-badge {
    margin-top: 1.5rem;
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--accent);
    opacity: 0.8;
}

/* Features */
section.features {
    padding: 8rem 0;
}

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

.feature-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    padding: 2.5rem;
    border-radius: 24px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

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

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    display: block;
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #fff;
}

.feature-card p {
    color: var(--text-dim);
    font-size: 1rem;
}

/* Animations */
@keyframes floating {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    header { height: auto; padding: 6rem 0; }
}