:root {
    --bg: #0e1116;
    --bg-soft: #161b22;
    --fg: #e6edf3;
    --fg-muted: #8b949e;
    --accent: #2f81f7;
    --accent-soft: #1f6feb;
    --border: #30363d;
    --card: #161b22;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Hero */
.hero {
    padding: 96px 0 80px;
    background:
        radial-gradient(ellipse at 20% 0%, rgba(47,129,247,0.18) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, rgba(47,129,247,0.10) 0%, transparent 60%),
        var(--bg);
    border-bottom: 1px solid var(--border);
}

.brand {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    padding: 6px 12px;
    border: 1px solid var(--accent);
    border-radius: 999px;
    margin-bottom: 28px;
}

.hero h1 {
    font-size: clamp(36px, 5.5vw, 60px);
    line-height: 1.1;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

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

.lead {
    font-size: 19px;
    color: var(--fg-muted);
    max-width: 720px;
    margin-bottom: 36px;
}

.lead strong { color: var(--fg); font-weight: 600; }

.cta-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.cta {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.1s, background 0.15s;
}

.cta:hover { transform: translateY(-1px); }

.cta-primary {
    background: var(--accent);
    color: #fff;
}
.cta-primary:hover { background: var(--accent-soft); }

.cta-ghost {
    background: transparent;
    color: var(--fg);
    border: 1px solid var(--border);
}
.cta-ghost:hover { border-color: var(--fg-muted); }

/* Sections */
section { padding: 80px 0; }

section h2 {
    font-size: clamp(28px, 3.5vw, 36px);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 48px;
    text-align: center;
}

/* Feature cards */
.grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}
@media (max-width: 640px) {
    .grid { grid-template-columns: 1fr; }
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px;
    transition: border-color 0.15s, transform 0.1s;
}

.card:hover { border-color: var(--accent); transform: translateY(-2px); }

.card-icon {
    font-size: 24px;
    color: var(--accent);
    font-weight: 700;
    margin-bottom: 12px;
}

.card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.card p {
    font-size: 15px;
    color: var(--fg-muted);
}

/* Steps */
.how { background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.steps {
    list-style: none;
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.steps li {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px 24px;
}

.step-num {
    flex: 0 0 36px;
    height: 36px;
    background: var(--accent);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.steps strong { display: block; margin-bottom: 4px; }
.steps code {
    background: var(--bg-soft);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 13px;
    color: var(--accent);
}

/* Footer */
footer {
    padding: 36px 0;
    border-top: 1px solid var(--border);
    color: var(--fg-muted);
    font-size: 14px;
    text-align: center;
}

footer p { margin: 4px 0; }
.footer-owner { color: var(--fg); font-weight: 600; font-size: 15px; }
.footer-contacts { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 8px !important; }
.footer-contacts .sep { color: var(--border); }
.footer-copy { margin-top: 12px !important; font-size: 13px; opacity: 0.7; }

footer a { color: var(--fg-muted); text-decoration: none; border-bottom: 1px dotted var(--fg-muted); }
footer a:hover { color: var(--fg); border-bottom-color: var(--fg); }