:root {
    --primary: #ffffff;
    --background: #000000;
    --accent: #222222;
    --text-muted: #888888;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--background);
    color: var(--primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navbar */
nav {
    padding: 2rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(0,0,0,0.8);
    backdrop-filter: blur(10px);
}

.nav-links a {
    color: var(--primary);
    text-decoration: none;
    margin-left: 2rem;
    font-weight: 500;
    transition: opacity 0.3s;
}

.nav-links a:hover {
    opacity: 0.7;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* Hero Section */
.hero {
    padding-top: 10rem;
    padding-bottom: 5rem;
    text-align: center;
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 800;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
    background: linear-gradient(180deg, #fff 0%, #888 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.btn {
    display: inline-block;
    background: var(--primary);
    color: var(--background);
    padding: 1rem 2.5rem;
    border-radius: 100px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s, background 0.3s;
}

.btn:hover {
    transform: scale(1.05);
    background: #eeeeee;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 5rem 0;
}

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

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

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

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

/* Support Form */
.contact-form {
    max-width: 600px;
    margin: 5rem auto;
    background: var(--glass);
    padding: 3rem;
    border-radius: 32px;
    border: 1px solid var(--glass-border);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

input, textarea {
    width: 100%;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    padding: 1rem;
    border-radius: 12px;
    color: white;
    outline: none;
}

input:focus, textarea:focus {
    border-color: var(--primary);
}

/* Footer */
footer {
    padding: 5rem 0;
    border-top: 1px solid var(--glass-border);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links {
    margin-top: 1rem;
}

.footer-links a {
    color: var(--text-muted);
    margin: 0 1rem;
    text-decoration: none;
}

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

.animate {
    animation: fadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* App Store Badge */
.app-store-badge {
    height: 48px;
    margin-top: 2rem;
}

@media (max-width: 768px) {
    .hero h1 { font-size: 3rem; }
}