* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
    --bg: #0a0a14;
    --bg-2: #12132a;
    --fg: #f3f4f6;
    --muted: #94a3b8;
    --accent: #ff7a1a;
    --accent-2: #ff5e3a;
    --indigo: #4f46e5;
    --violet: #7c3aed;
    --border: rgba(165, 180, 252, 0.18);
}
html, body {
    background: var(--bg);
    color: var(--fg);
    font-family: 'Inter', system-ui, sans-serif;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.4rem; }

/* ============ Topbar ============ */
.topbar {
    position: sticky; top: 0; z-index: 50;
    background: rgba(10,10,20,0.7);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
}
.topbar-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 64px;
}
.logo { font-weight: 900; font-size: 1.1rem; letter-spacing: 0.18rem; }
.logo-rp {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
nav { display: flex; align-items: center; gap: 1.6rem; }
nav a { color: var(--muted); font-weight: 600; font-size: 0.92rem; transition: color .12s; }
nav a:hover { color: #fff; }
.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff !important;
    padding: 0.55rem 1.1rem;
    border-radius: 0.55rem;
    font-weight: 700; letter-spacing: 0.04rem;
    box-shadow: 0 0.4rem 1rem rgba(255, 94, 58, 0.3);
    transition: filter .12s, transform .05s;
}
.btn-primary:hover { filter: brightness(1.1); }
.btn-primary.big { padding: 0.95rem 1.7rem; font-size: 1.05rem; border-radius: 0.7rem; }
.btn-ghost {
    border: 1px solid var(--border);
    color: var(--fg);
    padding: 0.55rem 1.1rem;
    border-radius: 0.55rem;
    font-weight: 700; letter-spacing: 0.04rem;
    transition: background .12s;
}
.btn-ghost:hover { background: rgba(255,255,255,0.05); }
.btn-ghost.big { padding: 0.95rem 1.7rem; font-size: 1.05rem; border-radius: 0.7rem; }

/* ============ Hero ============ */
.hero {
    position: relative;
    overflow: hidden;
    padding: 7rem 0 5rem;
}
.hero-bg {
    position: absolute; inset: 0; z-index: 0;
    background:
        radial-gradient(ellipse 70% 60% at 20% 10%, rgba(124, 58, 237, 0.45), transparent 60%),
        radial-gradient(ellipse 60% 50% at 90% 30%, rgba(255, 94, 58, 0.3), transparent 60%),
        radial-gradient(ellipse 80% 70% at 50% 100%, rgba(79, 70, 229, 0.4), transparent 70%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}
.hero-inner { position: relative; z-index: 1; text-align: center; }
.hero h1 {
    font-size: clamp(2.4rem, 5.5vw, 4.6rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.05;
    margin-bottom: 1.2rem;
}
.grad {
    background: linear-gradient(135deg, var(--accent), var(--accent-2) 40%, var(--violet) 90%);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-sub {
    font-size: clamp(1rem, 1.3vw, 1.2rem);
    color: var(--muted);
    max-width: 38rem;
    margin: 0 auto 2rem;
}
.hero-actions { display: flex; gap: 0.8rem; justify-content: center; flex-wrap: wrap; }
.hero-stats {
    margin-top: 4rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    max-width: 36rem; margin-left: auto; margin-right: auto;
}
.stat {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 0.9rem;
    padding: 1rem 0.8rem;
}
.stat-num {
    font-size: 1.8rem; font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-lbl {
    color: var(--muted);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.1rem;
    margin-top: 0.3rem;
}

/* ============ Sections ============ */
.section { padding: 5rem 0; }
.section-alt { background: linear-gradient(180deg, var(--bg) 0%, rgba(76, 29, 149, 0.08) 100%); }
.section h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.01em;
    margin-bottom: 0.4rem;
    text-align: center;
}
.section-sub {
    color: var(--muted);
    text-align: center;
    margin-bottom: 3rem;
    font-size: 1.05rem;
}

/* ============ Feature grid ============ */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid-3 { grid-template-columns: 1fr; } }
.card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.6rem 1.4rem;
    transition: border-color .15s, transform .15s, background .15s;
}
.card:hover {
    border-color: rgba(255, 122, 26, 0.4);
    background: rgba(255,255,255,0.05);
    transform: translateY(-2px);
}
.card-icon { font-size: 2rem; margin-bottom: 0.7rem; }
.card h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }
.card p { color: var(--muted); font-size: 0.92rem; }

/* ============ How-to steps ============ */
.steps {
    list-style: none;
    max-width: 38rem; margin: 0 auto;
    display: flex; flex-direction: column; gap: 1.3rem;
}
.steps li {
    display: flex; align-items: flex-start; gap: 1.3rem;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.4rem 1.4rem 1.4rem 1rem;
}
.step-num {
    width: 2.4rem; height: 2.4rem;
    flex: 0 0 2.4rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 1.05rem;
    box-shadow: 0 0.3rem 0.8rem rgba(255, 94, 58, 0.3);
}
.steps h3 { font-size: 1.05rem; margin-bottom: 0.3rem; }
.steps p { color: var(--muted); font-size: 0.95rem; }
.server-ip {
    margin-top: 0.7rem;
    font-family: 'Courier New', monospace;
    background: rgba(0,0,0,0.45);
    border: 1px solid var(--border);
    border-radius: 0.55rem;
    padding: 0.7rem 1rem;
    display: flex; align-items: center; justify-content: space-between;
    gap: 0.5rem;
    font-size: 1rem; color: #fcd34d;
    flex-wrap: wrap;
    word-break: break-all;
}
.copy {
    background: var(--accent);
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-size: 0.7rem;
    text-transform: uppercase; letter-spacing: 0.08rem;
    padding: 0.25rem 0.55rem;
    border-radius: 0.35rem;
    cursor: pointer;
    user-select: none;
    transition: filter .1s;
}
.copy:hover { filter: brightness(1.1); }
.copy.copied { background: #22c55e; }

/* ============ Status ============ */
.status-card {
    max-width: 36rem;
    margin: 0 auto;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.4rem 1.6rem;
}
.status-row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 0.7rem 0;
    border-bottom: 1px solid rgba(165, 180, 252, 0.08);
}
.status-row:last-child { border-bottom: 0; }
.status-lbl { color: var(--muted); font-size: 0.85rem; }
.status-val { color: #fff; font-weight: 600; font-family: 'Courier New', monospace; }
.status-val.up   { color: #86efac; }
.status-val.down { color: #fca5a5; }

/* ============ Footer ============ */
footer {
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    color: var(--muted);
    font-size: 0.85rem;
    text-align: center;
}
.footer-inner {
    display: flex; flex-direction: column; align-items: center; gap: 0.4rem;
}
.footer-brand { font-weight: 800; letter-spacing: 0.18rem; color: #fff; }

kbd {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.06);
    padding: 0.05rem 0.4rem;
    border-radius: 0.3rem;
    font-family: 'Courier New', monospace;
    font-size: 0.85em;
}

/* ============ Mobile ============ */
@media (max-width: 720px) {
    .container { padding: 0 1rem; }
    .topbar-inner { padding: 0.8rem 1rem; height: auto; }
    nav { gap: 0.6rem; }
    /* Hide secondary nav links on small screens, keep just the CTA */
    nav a:not(.btn-primary) { display: none; }
    .btn-primary { padding: 0.5rem 0.95rem; font-size: 0.85rem; }

    .hero { padding: 4rem 0 3rem; }
    .hero h1 { font-size: clamp(2rem, 9vw, 2.6rem); }
    .hero-sub { font-size: 1rem; }
    .hero-actions .btn-primary.big,
    .hero-actions .btn-ghost.big { padding: 0.8rem 1.4rem; font-size: 0.95rem; }

    .hero-stats {
        margin-top: 2.5rem;
        grid-template-columns: 1fr;
        gap: 0.6rem;
    }
    .stat { padding: 0.8rem 1rem; }
    .stat-num { font-size: 1.5rem; }

    .section { padding: 3rem 0; }
    .section h2 { font-size: 1.5rem; }
    .section-sub { margin-bottom: 1.8rem; font-size: 0.95rem; }

    .grid-3 { gap: 0.7rem; }
    .card { padding: 1.2rem 1.1rem; }
    .card h3 { font-size: 1rem; }
    .card p { font-size: 0.88rem; }

    .steps li {
        flex-direction: column;
        gap: 0.7rem;
        padding: 1.1rem 1rem;
    }
    .step-num { width: 2rem; height: 2rem; font-size: 0.95rem; }

    .server-ip {
        font-size: 0.9rem;
        padding: 0.6rem 0.8rem;
    }
    .copy { font-size: 0.65rem; padding: 0.25rem 0.5rem; }

    .status-card { padding: 1rem 1.1rem; }
    .status-row { flex-direction: column; align-items: flex-start; gap: 0.2rem; padding: 0.55rem 0; }
    .status-val { font-size: 0.92rem; }
}