:root {
    color-scheme: dark;
    --bg: #0E0E10;
    --bg-elevated: #18181B;
    --bg-input: #1F1F23;
    --text: #EFEFF1;
    --text-muted: #9B9BAA;
    --text-dim: #6B6B78;
    --border: #2A2A30;
    --accent: #2e8bff;
    --accent-bright: #4aa6ff;
    --accent-cyan: #33e3ff;
    --accent-deep: #1567e6;
    --accent-glow: rgba(46, 139, 255, 0.35);
    --cyan-glow: rgba(51, 227, 255, 0.30);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    background:
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(46, 139, 255, 0.12), transparent 60%),
        var(--bg);
    background-attachment: fixed;
    color: var(--text);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

a { color: var(--accent-bright); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--accent-cyan); }

.container { max-width: 1040px; margin: 0 auto; padding: 0 22px; }
.narrow { max-width: 760px; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(10px);
    background: rgba(14, 14, 16, 0.78);
    border-bottom: 1px solid var(--border);
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}
.brand {
    font-size: 19px;
    font-weight: 900;
    letter-spacing: 1px;
    color: var(--text);
}
.brand .brand-fx {
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-bright) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.brand:hover { color: var(--text); }
.nav-links { display: flex; gap: 22px; align-items: center; }
.nav-links a { color: var(--text-muted); font-size: 14px; font-weight: 600; }
.nav-links a:hover { color: var(--accent-cyan); }

.hero {
    text-align: center;
    padding: 86px 0 70px;
}
.hero-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--accent-cyan);
    border: 1px solid rgba(51, 227, 255, 0.3);
    background: rgba(51, 227, 255, 0.06);
    padding: 5px 12px;
    border-radius: 999px;
    margin-bottom: 22px;
}
.hero h1 {
    font-size: 52px;
    font-weight: 900;
    letter-spacing: -0.5px;
    line-height: 1.05;
    margin-bottom: 18px;
}
.hero h1 .fx {
    background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-bright) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 0 22px var(--cyan-glow));
}
.hero p {
    font-size: 19px;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto 32px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: inherit;
    font-size: 16px;
    font-weight: 800;
    padding: 13px 26px;
    border-radius: 11px;
    cursor: pointer;
    border: none;
    transition: transform 0.1s, box-shadow 0.2s, filter 0.2s;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent-deep) 0%, var(--accent) 100%);
    color: #fff;
    box-shadow: 0 4px 20px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,0.18);
}
.btn-primary:hover {
    transform: translateY(-2px);
    filter: brightness(1.08);
    box-shadow: 0 10px 30px var(--accent-glow), 0 0 22px var(--cyan-glow), inset 0 1px 0 rgba(255,255,255,0.25);
    color: #fff;
}
.btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.section { padding: 56px 0; }
.section h2 {
    font-size: 30px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}
.section .lead {
    text-align: center;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto 40px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}
.card {
    background: linear-gradient(180deg, rgba(32, 44, 66, 0.55) 0%, rgba(18, 22, 33, 0.55) 100%);
    border: 1px solid rgba(46, 139, 255, 0.22);
    border-radius: 16px;
    padding: 26px 22px;
    transition: transform 0.15s, border-color 0.18s, box-shadow 0.18s;
}
.card:hover {
    transform: translateY(-3px);
    border-color: rgba(51, 227, 255, 0.45);
    box-shadow: 0 12px 30px rgba(0,0,0,0.35), 0 0 18px var(--cyan-glow);
}
.card-icon { font-size: 30px; line-height: 1; margin-bottom: 14px; display: block; }
.card h3 { font-size: 18px; font-weight: 800; margin-bottom: 7px; }
.card p { color: var(--text-muted); font-size: 15px; }

.steps {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 680px;
    margin: 0 auto;
}
.step {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px 22px;
}
.step-num {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, var(--accent-cyan) 0%, var(--accent) 55%, var(--accent-deep) 100%);
    color: #0E0E10;
    font-weight: 900;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 14px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,0.5);
}
.step-body h3 { font-size: 17px; font-weight: 800; margin-bottom: 4px; }
.step-body p { color: var(--text-muted); font-size: 15px; }
.step-body a { font-weight: 700; }

.download-row { text-align: center; margin: 36px 0 8px; }
.download-note { text-align: center; color: var(--text-dim); font-size: 13px; margin-top: 12px; }

.legal { padding: 50px 0 70px; }
.legal h1 { font-size: 34px; font-weight: 900; margin-bottom: 6px; letter-spacing: -0.4px; }
.legal .updated { color: var(--text-dim); font-size: 14px; margin-bottom: 34px; }
.legal h2 {
    font-size: 21px;
    font-weight: 800;
    margin: 34px 0 10px;
    padding-top: 6px;
    color: var(--text);
}
.legal h2 .num { color: var(--accent-cyan); margin-right: 8px; }
.legal p { color: #C9C9D2; margin-bottom: 14px; }
.legal ul { margin: 0 0 14px 22px; color: #C9C9D2; }
.legal li { margin-bottom: 7px; }
.legal strong { color: var(--text); }
.legal a { font-weight: 600; }
.callout {
    background: rgba(46, 139, 255, 0.07);
    border: 1px solid rgba(46, 139, 255, 0.25);
    border-radius: 12px;
    padding: 16px 18px;
    margin: 22px 0;
    color: #C9C9D2;
    font-size: 15px;
}

.site-footer {
    border-top: 1px solid var(--border);
    margin-top: 40px;
    padding: 34px 0;
}
.site-footer .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 14px;
}
.footer-brand { font-size: 14px; font-weight: 800; letter-spacing: 1px; color: var(--text-muted); }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { color: var(--text-dim); font-size: 13px; font-weight: 600; }
.footer-links a:hover { color: var(--accent-cyan); }

@media (max-width: 640px) {
    .hero { padding: 60px 0 48px; }
    .hero h1 { font-size: 38px; }
    .hero p { font-size: 17px; }
    .nav-links { gap: 15px; }
    .nav-links a { font-size: 13px; }
    .section { padding: 42px 0; }
    .section h2 { font-size: 25px; }
    .legal h1 { font-size: 28px; }
}