:root {
    --bg: #071015;
    --panel: rgba(13, 25, 34, .92);
    --panel2: rgba(19, 37, 50, .86);
    --line: rgba(118, 198, 255, .22);
    --text: #eaf7ff;
    --muted: #9bb3c2;
    --accent: #56c7ff;
    --accent2: #9df08e;
    --danger: #ffb45e;
    --shadow: 0 24px 80px rgba(0, 0, 0, .42);
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 20% 0%, rgba(86, 199, 255, .16), transparent 32rem),
        radial-gradient(circle at 85% 20%, rgba(157, 240, 142, .08), transparent 28rem),
        linear-gradient(135deg, #061014, #0a131c 55%, #04080c);
}
.page { width: min(1280px, calc(100% - 28px)); margin: 0 auto; padding: 28px 0 48px; }
.hero {
    display: grid;
    grid-template-columns: 1fr minmax(260px, 360px);
    gap: 22px;
    align-items: stretch;
    margin-bottom: 22px;
}
.hero > div, .panel, .notice {
    border: 1px solid var(--line);
    background: var(--panel);
    border-radius: 22px;
    box-shadow: var(--shadow);
}
.hero > div:first-child { padding: 32px; }
.kicker { margin: 0 0 8px; color: var(--accent2); text-transform: uppercase; font-size: .78rem; letter-spacing: .14em; font-weight: 800; }
h1 { margin: 0; font-size: clamp(2rem, 4vw, 4rem); line-height: .95; }
.lede { margin: 16px 0 0; max-width: 860px; color: var(--muted); font-size: 1.04rem; }
.status-card { padding: 28px; display: flex; flex-direction: column; justify-content: center; gap: 10px; background: linear-gradient(145deg, rgba(30, 70, 96, .86), rgba(11, 21, 29, .9)); }
.status-card strong { font-size: 1.2rem; }
.status-card span { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.status-card small { color: var(--muted); }
.notice { padding: 16px 20px; margin-bottom: 18px; border-color: rgba(157, 240, 142, .35); }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.panel { padding: 22px; }
.span-2 { grid-column: span 2; }
h2 { margin: 0 0 16px; font-size: 1.25rem; }
.form-row { display: grid; gap: 8px; }
label { display: block; color: #cfe7f5; font-weight: 700; margin-bottom: 7px; }
input, select, textarea, button {
    font: inherit;
    border-radius: 12px;
}
input, select, textarea {
    width: 100%;
    background: #07131b;
    border: 1px solid rgba(127, 207, 255, .22);
    color: var(--text);
    padding: 12px 13px;
    outline: none;
}
textarea { min-height: 130px; resize: vertical; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; line-height: 1.45; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(86, 199, 255, .12); }
.check-row { margin-top: 15px; display: flex; gap: 12px; align-items: flex-start; color: var(--text); font-weight: 600; }
.check-row input { width: auto; margin-top: 4px; }
.hint { color: var(--muted); font-size: .92rem; margin: 10px 0 0; }
.tabs-table { display: grid; gap: 8px; }
.tabs-head, .tabs-row { display: grid; grid-template-columns: 1fr 1.3fr 1.3fr; gap: 10px; align-items: center; }
.tabs-head { color: var(--muted); font-size: .85rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.preset-list { display: grid; gap: 10px; max-height: 610px; overflow: auto; padding-right: 4px; }
.preset-list article { background: var(--panel2); border: 1px solid rgba(255, 255, 255, .08); border-radius: 16px; padding: 14px; }
.preset-list p { margin: 6px 0; color: var(--muted); }
.preset-list small { color: var(--accent); }
.group-table-wrap { max-height: 460px; overflow: auto; border: 1px solid rgba(255,255,255,.08); border-radius: 16px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; border-bottom: 1px solid rgba(255,255,255,.07); text-align: left; }
th { position: sticky; top: 0; background: #0d1d28; z-index: 2; color: var(--muted); }
code { color: #b8f7ff; background: rgba(86, 199, 255, .08); border: 1px solid rgba(86, 199, 255, .16); border-radius: 7px; padding: 2px 5px; }
button { border: 0; cursor: pointer; font-weight: 800; }
button.primary, .actions button { padding: 13px 18px; background: linear-gradient(135deg, var(--accent), #2477ff); color: #00111b; }
.actions { display: flex; justify-content: flex-end; gap: 12px; }
.actions button:first-child { background: #152d3e; color: var(--text); border: 1px solid var(--line); }
button.mini { padding: 6px 10px; background: rgba(157, 240, 142, .12); color: var(--accent2); border: 1px solid rgba(157, 240, 142, .28); }
.output textarea { min-height: 460px; }
.readme ol { color: var(--muted); line-height: 1.65; }
.warning { color: var(--danger); margin-bottom: 0; }
@media (max-width: 860px) {
    .hero, .grid { grid-template-columns: 1fr; }
    .span-2 { grid-column: span 1; }
    .tabs-head { display: none; }
    .tabs-row { grid-template-columns: 1fr; background: rgba(255,255,255,.04); border-radius: 14px; padding: 10px; }
    .actions { flex-direction: column; }
}

.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    align-items: start;
}
.colour-profile-hint { margin-bottom: 0; }
.colour-select option[value="cyan"] { color: #56c7ff; }
.colour-select option[value="green"] { color: #9df08e; }
.colour-select option[value="orange"] { color: #ffb45e; }
.colour-select option[value="red"] { color: #ff5e6c; }
.colour-select option[value="purple"] { color: #b985ff; }
.colour-select option[value="blue"] { color: #6ba7ff; }
.colour-select option[value="yellow"] { color: #ffe36e; }
.tabs-head, .tabs-row { grid-template-columns: 1fr .75fr 1.25fr 1.25fr; }
@media (max-width: 860px) {
    .settings-grid { grid-template-columns: 1fr; }
    .tabs-row { grid-template-columns: 1fr; }
}