/* ===== Reset & Base ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #000000;
    --bg-card: #111111;
    --text: #ffffff;
    --text-muted: #999999;
    --accent: #4F8EF7;
    --accent-hover: #3a7ae0;
    --gradient-start: #4F8EF7;
    --gradient-end: #A855F7;
    --border: #222222;
    --max-width: 960px;
}

html { scroll-behavior: smooth; }

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

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

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 16px 24px;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.navbar-brand span {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.navbar-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    background: radial-gradient(ellipse at 50% 0%, rgba(79, 142, 247, 0.12) 0%, transparent 60%);
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero h1 .gradient {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 540px;
    margin-bottom: 40px;
}

.btn-appstore {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 32px;
    background: var(--text);
    color: var(--bg);
    border-radius: 14px;
    font-size: 1rem;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-appstore:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(79, 142, 247, 0.3);
    color: var(--bg);
}

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

/* ===== Features ===== */
.features {
    padding: 80px 24px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.features h2 {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 48px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    transition: border-color 0.2s;
}

.feature-card:hover { border-color: var(--accent); }

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* ===== CTA Section ===== */
.cta {
    text-align: center;
    padding: 80px 24px;
}

.cta h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta p {
    color: var(--text-muted);
    margin-bottom: 32px;
    font-size: 1.1rem;
}

/* ===== Footer ===== */
.footer {
    border-top: 1px solid var(--border);
    padding: 40px 24px;
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color 0.2s;
}

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

.footer-copy {
    color: #555;
    font-size: 0.85rem;
}

/* ===== Legal / Content Pages ===== */
.page-content {
    max-width: 720px;
    margin: 0 auto;
    padding: 120px 24px 80px;
}

.page-content h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.page-content .last-updated {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 40px;
}

.page-content h2 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-top: 40px;
    margin-bottom: 12px;
}

.page-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 24px;
    margin-bottom: 8px;
}

.page-content p, .page-content li {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 12px;
}

.page-content ul {
    padding-left: 24px;
    margin-bottom: 16px;
}

.page-content a {
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* ===== Support Page ===== */
.support-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 24px;
}

.support-card h3 {
    margin-top: 0;
}

.faq-item {
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
}

.faq-item:last-child { border-bottom: none; }

.faq-item h3 {
    color: var(--text);
    margin-top: 0;
    margin-bottom: 8px;
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
    .navbar-links { display: none; }
    .hero { padding: 100px 20px 60px; }
    .hero p { font-size: 1.1rem; }
    .features { padding: 60px 20px; }
    .page-content { padding: 100px 20px 60px; }
    .page-content h1 { font-size: 2rem; }
}