:root {
    --bg: #0a0a0a;
    --surface: #141414;
    --border: #1e1e1e;
    --text: #e5e5e5;
    --text-muted: #888;
    --accent: #f59e0b;
    --accent-dim: rgba(245, 158, 11, 0.15);
    --cyan: #22d3ee;
}

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

html {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

body {
    min-height: 100vh;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Navigation */
nav {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

nav .logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
}

nav .logo span {
    color: var(--accent);
}

nav .links {
    display: flex;
    gap: 24px;
}

nav .links a {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

nav .links a:hover {
    color: var(--text);
    text-decoration: none;
}

/* Hero */
.hero {
    max-width: 720px;
    margin: 0 auto;
    padding: 80px 24px 60px;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 16px;
}

.hero h1 span {
    color: var(--accent);
}

.hero .subtitle {
    font-size: 20px;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.5;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--accent-dim);
    color: var(--accent);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
}

/* App Store Button */
.app-store-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--text);
    color: var(--bg);
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    transition: opacity 0.2s;
}

.app-store-btn:hover {
    opacity: 0.85;
    text-decoration: none;
}

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

/* Features */
.features {
    max-width: 720px;
    margin: 0 auto;
    padding: 40px 24px 80px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.feature {
    padding: 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
}

.feature .icon {
    font-size: 28px;
    margin-bottom: 12px;
}

.feature h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
}

.feature p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Content Pages */
.content {
    max-width: 720px;
    margin: 0 auto;
    padding: 60px 24px 80px;
}

.content h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.content .last-updated {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 40px;
}

.content h2 {
    font-size: 20px;
    font-weight: 600;
    margin-top: 40px;
    margin-bottom: 12px;
}

.content p {
    color: var(--text-muted);
    margin-bottom: 16px;
}

.content ul {
    color: var(--text-muted);
    margin-bottom: 16px;
    padding-left: 24px;
}

.content li {
    margin-bottom: 8px;
}

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

/* Contact Card */
.contact-card {
    padding: 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    margin-top: 32px;
}

.contact-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.contact-card p {
    font-size: 14px;
    margin-bottom: 8px;
}

/* Footer */
footer {
    max-width: 720px;
    margin: 0 auto;
    padding: 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-muted);
}

footer .footer-links {
    display: flex;
    gap: 20px;
}

footer a {
    color: var(--text-muted);
    transition: color 0.2s;
}

footer a:hover {
    color: var(--text);
}

/* Responsive */
@media (max-width: 600px) {
    .hero h1 {
        font-size: 32px;
    }

    .hero .subtitle {
        font-size: 17px;
    }

    .features {
        grid-template-columns: 1fr;
    }

    footer {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}