:root {
    --bg: #0d1117;
    --bg-elev: #161b22;
    --bg-elev-2: #1c2330;
    --border: #2a313c;
    --text: #e6edf3;
    --muted: #9aa7b4;
    --accent: #ff5a4d;
    --accent-2: #ffb84d;
    --ok: #3fb950;
    --radius: 12px;
    --wrap: 1120px;
    --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

body { display: flex; flex-direction: column; min-height: 100vh; }
main { flex: 1 0 auto; }

a { color: var(--text); text-decoration: none; }
a:hover { color: #fff; }
code {
    font-family: ui-monospace, "Cascadia Code", "Fira Code", Consolas, monospace;
    background: var(--bg-elev-2);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 0.05em 0.4em;
    font-size: 0.9em;
}

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 720px; }
.pad { padding-top: 56px; padding-bottom: 56px; }
.muted { color: var(--muted); }
.accent { color: var(--accent); }

/* ---- Top bar ---- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(13, 17, 23, 0.85);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; }
.brand-mark { color: var(--accent); font-size: 1.4rem; line-height: 1; }
.topnav { display: flex; align-items: center; gap: 18px; }
.topnav .who { color: var(--muted); font-size: 0.9rem; }

/* ---- Buttons ---- */
.btn {
    display: inline-block;
    background: var(--accent);
    color: #1a0f0d;
    font-weight: 600;
    padding: 9px 16px;
    border-radius: 9px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.08s ease, filter 0.15s ease;
}
.btn:hover { filter: brightness(1.07); color: #1a0f0d; }
.btn:active { transform: translateY(1px); }
.btn-lg { padding: 12px 22px; font-size: 1.02rem; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-elev); color: #fff; }
.btn.disabled, .btn[aria-disabled="true"] {
    background: var(--bg-elev-2);
    color: var(--muted);
    border-color: var(--border);
    cursor: not-allowed;
}

/* ---- Hero ---- */
.hero {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
    padding-top: 72px;
    padding-bottom: 72px;
}
.pill {
    display: inline-block;
    font-size: 0.8rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--accent-2);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 4px 12px;
    margin-bottom: 18px;
}
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.05; margin: 0 0 16px; }
.lead { font-size: 1.15rem; color: var(--muted); margin: 0 0 28px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-card {
    background: linear-gradient(160deg, var(--bg-elev), var(--bg-elev-2));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.6);
}
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.stat {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px;
}
.stat-label { display: block; font-size: 0.82rem; color: var(--muted); margin-bottom: 6px; }
.stat-value { font-size: 1.7rem; font-weight: 700; color: var(--text); }
.stat-note { margin: 16px 0 0; font-size: 0.85rem; color: var(--muted); }

/* ---- Bands ---- */
.band { padding: 64px 0; border-top: 1px solid var(--border); }
.band.alt { background: var(--bg-elev); }
.band h2 { font-size: 1.8rem; margin: 0 0 28px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
}
.band.alt .card { background: var(--bg-elev-2); }
.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); }

/* ---- Steps ---- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 20px; }
.steps li { display: flex; gap: 18px; align-items: flex-start; }
.step-no {
    flex: 0 0 auto;
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--accent);
    color: #1a0f0d;
    font-weight: 700;
}
.steps h3 { margin: 4px 0 4px; font-size: 1.1rem; }
.steps p { margin: 0; color: var(--muted); }

/* ---- Footer ---- */
.footer { border-top: 1px solid var(--border); background: var(--bg-elev); }
.footer-inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 22px 24px; font-size: 0.9rem; }

/* ---- Forms ---- */
.inline-form { display: inline; margin: 0; }
.form-card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px;
    max-width: 460px;
}
.field { margin-bottom: 16px; display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 0.9rem; color: var(--muted); }
.input {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    padding: 10px 12px;
    font-size: 1rem;
    font-family: inherit;
    width: 100%;
}
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255, 90, 77, 0.18); }
.check { display: flex; align-items: center; gap: 8px; margin-bottom: 18px; color: var(--muted); }
.field-error { color: #ff8a80; font-size: 0.85rem; }
.validation-summary { color: #ff8a80; font-size: 0.9rem; margin-bottom: 12px; }
.validation-summary ul { margin: 0; padding-left: 18px; }
.validation-summary:empty { display: none; }
.form-foot { margin: 16px 0 0; font-size: 0.9rem; }
.form-foot a { color: var(--accent); }
.btn-sm { padding: 5px 10px; font-size: 0.85rem; }
.btn-danger { background: transparent; color: #ff8a80; border-color: rgba(255, 90, 77, 0.45); }
.btn-danger:hover { background: rgba(255, 90, 77, 0.12); color: #ff8a80; }

/* ---- Notices ---- */
.notice {
    background: var(--bg-elev-2);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent-2);
    border-radius: 8px;
    padding: 14px 16px;
    margin-bottom: 22px;
}
.notice-ok { border-left-color: var(--ok); }

/* ---- Dashboard ---- */
.license-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 22px;
    margin-bottom: 22px;
}
.keycode { font-size: 0.95rem; color: var(--accent-2); }
.stat-grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

.badge {
    display: inline-block;
    font-size: 0.82rem;
    padding: 3px 10px;
    border-radius: 999px;
    border: 1px solid var(--border);
}
.badge-ok { color: var(--ok); border-color: rgba(63, 185, 80, 0.4); }
.badge-wait { color: var(--accent-2); border-color: rgba(255, 184, 77, 0.4); }
.badge-bad { color: #ff8a80; border-color: rgba(255, 90, 77, 0.4); }

/* ---- Admin ---- */
.create-bar { display: flex; gap: 10px; margin-bottom: 24px; flex-wrap: wrap; }
.create-bar .input { max-width: 420px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
.grid { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.grid th, .grid td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.grid thead th { color: var(--muted); font-weight: 600; background: var(--bg-elev); }
.grid tbody tr:last-child td { border-bottom: none; }
.grid tbody tr:hover { background: var(--bg-elev); }
.row-actions { text-align: right; }

@media (max-width: 820px) {
    .hero { grid-template-columns: 1fr; padding-top: 44px; }
    .topnav { gap: 12px; }
    .topnav .who { display: none; }
}