:root {
    --bg: #1a1b20;
    --bg-raised: #23242b;
    --bg-card: #26272f;
    --border: #34353f;
    --text: #f2f3f5;
    --muted: #b5bac1;
    --accent-a: #7b61ff;
    --accent-b: #38a5fa;
    --accent-grad: linear-gradient(135deg, var(--accent-a), var(--accent-b));
    --radius: 14px;
    --maxw: 1060px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
    line-height: 1.6;
}

a { color: #8fb8ff; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* Nav */
.nav {
    position: sticky; top: 0; z-index: 10;
    background: rgba(26, 27, 32, 0.9);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    display: flex; align-items: center; gap: 12px;
    max-width: var(--maxw); margin: 0 auto; padding: 12px 20px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-weight: 800; font-size: 20px; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.nav-links { margin-left: auto; display: flex; gap: 18px; align-items: center; }
.nav-links a { color: var(--muted); text-decoration: none; font-weight: 600; }
.nav-links a:hover { color: var(--text); }

/* Buttons */
.btn {
    display: inline-block;
    background: var(--accent-grad);
    color: #fff !important;
    border: none; border-radius: 10px;
    padding: 12px 26px;
    font-size: 16px; font-weight: 700;
    text-decoration: none; cursor: pointer;
}
.btn:hover { filter: brightness(1.1); }
.btn.ghost {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text) !important;
}
.btn.small { padding: 8px 16px; font-size: 14px; }

/* Hero */
.hero { text-align: center; padding: 72px 20px 56px; }
.hero-logo { width: 128px; height: 128px; border-radius: 30px; box-shadow: 0 12px 48px rgba(123, 97, 255, 0.35); }
.hero h1 { font-size: 52px; margin: 20px 0 8px; letter-spacing: -1px; }
.hero h1 .grad {
    background: var(--accent-grad);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.tag { color: var(--muted); font-size: 19px; max-width: 640px; margin: 0 auto 28px; }
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.version-pill {
    display: inline-block; margin-top: 22px;
    border: 1px solid var(--border); border-radius: 999px;
    padding: 4px 16px; color: var(--muted); font-size: 14px;
}

/* Features */
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; padding: 24px 0 64px; }
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .icon { font-size: 26px; }

/* Download page */
.os-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 16px; margin: 24px 0 64px; }
.os-grid h3 { margin-top: 0; }
code.cmd {
    display: block; background: #14151a;
    border: 1px solid var(--border); border-radius: 8px;
    padding: 10px 12px; margin: 10px 0;
    font-family: Consolas, monospace; font-size: 13px;
    overflow-x: auto; white-space: nowrap;
}
.copy-row { display: flex; gap: 8px; align-items: stretch; }
.copy-row code.cmd { flex: 1; margin: 0; }
ul.tight { padding-left: 20px; color: var(--muted); }
ul.tight li { margin-bottom: 6px; }

/* FAQ */
.faq { max-width: 760px; margin: 0 auto; padding-bottom: 64px; }
.faq details {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px; margin-bottom: 12px;
}
.faq summary { font-weight: 700; cursor: pointer; font-size: 17px; }
.faq details p { color: var(--muted); }

/* Page head */
.page-head { text-align: center; padding: 48px 20px 8px; }
.page-head h1 { font-size: 40px; margin: 0 0 8px; }
.page-head p { color: var(--muted); }

/* Footer */
footer {
    border-top: 1px solid var(--border);
    padding: 28px 20px 40px;
    color: var(--muted); font-size: 14px; text-align: center;
}
footer a { color: var(--muted); }