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

:root {
    --bg: #0f0f12;
    --surface: #1a1a20;
    --surface-light: #24242c;
    --accent: #4078d9;
    --text: #eaeaea;
    --text-secondary: #999;
    --star: #ffd700;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

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

a:hover {
    text-decoration: underline;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 16px 24px;
    background: rgba(15, 15, 18, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-brand {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--text);
}

.nav-links {
    display: flex;
    gap: 24px;
    list-style: none;
}

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

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

/* Hero */
.hero {
    text-align: center;
    padding: 140px 24px 80px;
    max-width: 720px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #fff 30%, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto 32px;
}

.app-store-badge {
    display: inline-block;
}

.app-store-badge img {
    height: 54px;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

.feature-card {
    background: var(--surface);
    border-radius: 16px;
    padding: 28px;
    border: 1px solid rgba(255,255,255,0.04);
}

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

.feature-card h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 6px;
}

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

/* Content page (privacy, support) */
.content-page {
    max-width: 680px;
    margin: 0 auto;
    padding: 100px 24px 80px;
}

.content-page h1 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 8px;
}

.content-page .updated {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.content-page h2 {
    font-size: 20px;
    font-weight: 700;
    margin-top: 32px;
    margin-bottom: 12px;
}

.content-page p,
.content-page li {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.content-page ul {
    padding-left: 20px;
    margin-bottom: 12px;
}

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

/* Footer */
.footer {
    text-align: center;
    padding: 40px 24px;
    border-top: 1px solid rgba(255,255,255,0.06);
    font-size: 13px;
    color: var(--text-secondary);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 12px;
}

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

    .hero p {
        font-size: 16px;
    }

    .nav-links {
        gap: 16px;
    }
}