/* Tarn: a small alpine lake. Snowfield by day, night water after dark. */

@font-face {
  font-family: "Overpass";
  src: url("vendor/fonts/overpass-var.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: "Overpass Mono";
  src: url("vendor/fonts/overpass-mono-400.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Overpass Mono";
  src: url("vendor/fonts/overpass-mono-600.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

:root {
  --bg: #f2f5f4;          /* snowfield */
  --surface: #fbfcfc;
  --ink: #172a2f;         /* wet granite */
  --muted: #5b6d71;
  --line: #d3dedd;
  --accent: #0e6e78;      /* glacial water */
  --accent-ink: #ffffff;
  --accent-soft: #cfe4e4; /* ice */
  --ridge: #0e6e78;
  --warn: #a96c12;        /* larch in autumn */
  --danger: #ad3c27;      /* iron-rich rock */
  --danger-soft: #f6e1db;
  --focus: #0e6e78;
  --code-bg: #e6eeed;

  --font: "Overpass", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Overpass Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --radius: 6px;
  --gutter: 28px;
  --max: 1240px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f2126;
    --surface: #13292f;
    --ink: #e2ecea;
    --muted: #8da3a6;
    --line: #23404a;
    --accent: #5bc2c8;
    --accent-ink: #0b1d22;
    --accent-soft: #1b4750;
    --ridge: #5bc2c8;
    --warn: #e2a64c;
    --danger: #e57d65;
    --danger-soft: #3a2621;
    --focus: #8fdde1;
    --code-bg: #0b1a1e;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0f2126;
  --surface: #13292f;
  --ink: #e2ecea;
  --muted: #8da3a6;
  --line: #23404a;
  --accent: #5bc2c8;
  --accent-ink: #0b1d22;
  --accent-soft: #1b4750;
  --ridge: #5bc2c8;
  --warn: #e2a64c;
  --danger: #e57d65;
  --danger-soft: #3a2621;
  --focus: #8fdde1;
  --code-bg: #0b1a1e;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  font-feature-settings: "tnum" 1;
}
a { color: var(--accent); text-underline-offset: 3px; }
h1, h2, h3 { line-height: 1.15; margin: 0; }
h2 { font-size: 21px; font-weight: 750; letter-spacing: -0.01em; }
h3 { font-size: 16px; font-weight: 700; }
p { margin: 0 0 12px; max-width: 72ch; }
code, .mono { font-family: var(--mono); font-size: 0.88em; }
code { background: var(--code-bg); padding: 1px 5px; border-radius: 4px; overflow-wrap: anywhere; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.muted { color: var(--muted); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
[hidden] { display: none !important; }

/* ---------- top bar ---------- */
.topbar {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky; top: 0; z-index: 20;
}
.topbar .wrap { display: flex; align-items: center; gap: 28px; height: 56px; }
.brand {
  font-weight: 850; font-size: 22px; letter-spacing: -0.03em;
  color: var(--ink); text-decoration: none; display: flex; align-items: center; gap: 8px;
}
.brand svg { width: 26px; height: 18px; color: var(--accent); }
.nav { display: flex; gap: 4px; flex: 1; }
.nav a {
  color: var(--muted); text-decoration: none; font-weight: 600;
  padding: 6px 10px; border-radius: var(--radius);
}
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--accent); border-radius: 0; }
.topbar .right { display: flex; gap: 8px; align-items: center; }
.label-short { display: none; }

/* ---------- buttons & inputs ---------- */
.btn {
  font: inherit; font-weight: 650; font-size: 14px;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 34px; padding: 5px 13px 4px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); color: var(--ink); cursor: pointer;
  text-decoration: none; white-space: nowrap;
}
.btn:hover { border-color: var(--muted); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { border-color: var(--ink); }
.btn-danger { color: var(--danger); }
.btn-danger:hover { border-color: var(--danger); }
.btn-solid-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-quiet { border-color: transparent; background: transparent; }
.btn-quiet:hover { border-color: var(--line); }
.btn-sm { min-height: 28px; padding: 3px 9px 2px; font-size: 13px; }
.btn .busy { width: 12px; height: 12px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

input[type="text"], input[type="password"], input[type="number"], select, textarea {
  font: inherit; color: var(--ink); background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 7px 10px 6px; min-height: 36px; width: 100%;
}
textarea { font-family: var(--mono); font-size: 13px; line-height: 1.55; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px var(--accent-soft); }
label { display: block; font-weight: 650; font-size: 14px; margin-bottom: 5px; }
.field { margin-bottom: 16px; }
.field .hint { font-size: 13px; color: var(--muted); margin-top: 5px; }
.check { display: flex; gap: 9px; align-items: flex-start; font-weight: 500; margin-bottom: 10px; }
.check input { margin-top: 4px; accent-color: var(--accent); }
.check .hint { display: block; font-size: 13px; color: var(--muted); }

/* ---------- the horizon: host banner with CPU ridgeline ---------- */
.horizon {
  position: relative; overflow: hidden;
  border-bottom: 1px solid var(--line);
  padding: 34px 0 0;
}
.horizon .wrap { position: relative; z-index: 1; }
.horizon h1 {
  font-size: clamp(38px, 6vw, 64px); font-weight: 850; letter-spacing: -0.045em;
  line-height: 0.95;
}
.horizon .sub { color: var(--muted); margin-top: 8px; font-size: 14px; }
.horizon .readouts {
  display: flex; flex-wrap: wrap; gap: 8px 36px; margin: 22px 0 0; padding-bottom: 112px;
}
.readout { min-width: 96px; }
.readout .v { font-size: 26px; font-weight: 750; letter-spacing: -0.02em; line-height: 1.1; }
.readout .v small { font-size: 14px; font-weight: 600; color: var(--muted); letter-spacing: 0; }
.readout .k { font-size: 13px; color: var(--muted); }
.readout.warn .v { color: var(--warn); }
.horizon svg.range {
  position: absolute; left: 0; right: 0; bottom: 0; width: 100%; height: 108px; display: block;
}
.range .fill { fill: var(--accent-soft); }
.range .edge { fill: none; stroke: var(--ridge); stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.range .grid { stroke: var(--line); stroke-width: 1; vector-effect: non-scaling-stroke; stroke-dasharray: 2 4; }

/* ---------- sections ---------- */
.section { padding-top: 28px; padding-bottom: 28px; }
.section-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 14px; flex-wrap: wrap; }
.section-head h2 { flex: 0 1 auto; }
.section-head .spacer { flex: 1; }

/* ---------- VM list: rows, not cards ---------- */
.vmlist { border-top: 1px solid var(--line); }
.vmrow {
  display: grid; align-items: center; gap: 16px;
  grid-template-columns: minmax(180px, 1.3fr) 150px minmax(120px, 1fr) 64px 120px 190px;
  padding: 12px 4px; border-bottom: 1px solid var(--line);
}
.vmrow:hover { background: color-mix(in srgb, var(--accent-soft) 35%, transparent); }
.vmname { display: flex; align-items: center; gap: 10px; min-width: 0; }
.vmname a { font-weight: 750; font-size: 16px; color: var(--ink); text-decoration: none; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.vmname a:hover { text-decoration: underline; }
.vmname .os { font-size: 13px; color: var(--muted); }
.vmrow .res { font-size: 14px; color: var(--muted); }
.vmrow .cpu { font-weight: 700; text-align: right; }
.vmrow .mem { font-size: 14px; color: var(--muted); }
.vmrow .acts { display: flex; gap: 6px; justify-content: flex-end; }
svg.ridge { width: 100%; height: 30px; display: block; }
.ridge .fill { fill: var(--accent-soft); }
.ridge .edge { fill: none; stroke: var(--ridge); stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.ridge .flat { stroke: var(--line); stroke-width: 1.5; vector-effect: non-scaling-stroke; }

.dot { width: 11px; height: 11px; border-radius: 50%; flex: none; border: 2px solid var(--muted); }
.dot.running { background: var(--accent); border-color: var(--accent); }
.dot.paused, .dot.suspended, .dot.stopping { background: var(--warn); border-color: var(--warn); }
.dot.crashed { background: var(--danger); border-color: var(--danger); }
.state { font-weight: 650; }
.state.running { color: var(--accent); }
.state.paused, .state.suspended, .state.stopping { color: var(--warn); }
.state.crashed { color: var(--danger); }
.state.stopped { color: var(--muted); }

.empty { padding: 48px 4px; border-bottom: 1px solid var(--line); }
.empty h3 { font-size: 18px; margin-bottom: 6px; }

/* ---------- VM page ---------- */
.vmhead { padding: 30px 0 0; border-bottom: 1px solid var(--line); }
.vmhead .crumbs { font-size: 14px; margin-bottom: 10px; }
.vmhead .crumbs a { color: var(--muted); }
.vmhead .title { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.vmhead h1 { font-size: clamp(30px, 4.5vw, 44px); font-weight: 850; letter-spacing: -0.035em; }
.vmhead .facts { color: var(--muted); font-size: 14px; margin-top: 8px; display: flex; flex-wrap: wrap; gap: 4px 18px; }
.actionbar { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 20px; }
.tabs { display: flex; gap: 2px; overflow-x: auto; }
.tabs a {
  padding: 9px 14px 8px; color: var(--muted); text-decoration: none; font-weight: 650;
  border-bottom: 2px solid transparent; white-space: nowrap;
}
.tabs a:hover { color: var(--ink); }
.tabs a[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }

.charts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); }
.chart { padding: 16px 20px 14px 0; border-bottom: 1px solid var(--line); }
.chart:nth-child(odd) { border-right: 1px solid var(--line); }
.chart:nth-child(even) { padding-left: 20px; padding-right: 0; }
.chart .top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.chart .top b { font-size: 22px; font-weight: 750; letter-spacing: -0.02em; }
.chart .top span { color: var(--muted); font-size: 14px; }
.chart svg { width: 100%; height: 84px; display: block; }
.chart .second { fill: none; stroke: var(--warn); stroke-width: 1.5; vector-effect: non-scaling-stroke; }

dl.kv { display: grid; grid-template-columns: max-content 1fr; gap: 8px 24px; margin: 0; }
dl.kv dt { color: var(--muted); font-size: 14px; }
dl.kv dd { margin: 0; overflow-wrap: anywhere; }
.cols { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px; }

table.list { width: 100%; border-collapse: collapse; font-size: 14px; }
table.list th { text-align: left; font-weight: 650; color: var(--muted); padding: 8px 10px 8px 0; border-bottom: 1px solid var(--line); }
table.list td { padding: 10px 10px 10px 0; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.list td.num, table.list th.num { text-align: right; }
table.list .acts { text-align: right; white-space: nowrap; }
.table-scroll { overflow-x: auto; }

.panel { border-top: 1px solid var(--line); padding: 20px 0; }
.panel:first-child { border-top: 0; }
.panel h3 { margin-bottom: 12px; }
.inline-form { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
.inline-form .field { margin: 0; }

.console-frame { width: 100%; height: min(72vh, 820px); border: 1px solid var(--line); border-radius: var(--radius); background: #000; display: block; }

/* readiness checklist */
.checks { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.checks li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.checks .mark { width: 18px; height: 18px; border-radius: 50%; margin-top: 2px; display: grid; place-items: center; font-size: 12px; font-weight: 800; }
.checks .ok .mark { background: var(--accent-soft); color: var(--accent); }
.checks .warn .mark { background: color-mix(in srgb, var(--warn) 22%, transparent); color: var(--warn); }
.checks .error .mark { background: var(--danger-soft); color: var(--danger); }
.checks .what { font-weight: 650; }
.checks .detail { color: var(--muted); font-size: 14px; }
.checks .fix { font-size: 13px; margin-top: 4px; }

.bar { height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; margin-top: 6px; max-width: 360px; }
.bar > span { display: block; height: 100%; background: var(--accent); }
.bar.high > span { background: var(--warn); }

/* create form */
.form-grid { display: grid; grid-template-columns: 220px minmax(0, 640px); gap: 0 40px; }
.form-grid > .label-col { padding-top: 22px; }
.form-grid > .label-col h3 { font-size: 17px; }
.form-grid > .label-col p { font-size: 14px; color: var(--muted); margin-top: 6px; }
.form-grid > .input-col { padding: 22px 0; border-bottom: 1px solid var(--line); }
.form-grid > .label-col { border-bottom: 1px solid var(--line); }
.ostiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.ostile { position: relative; }
.ostile input { position: absolute; opacity: 0; width: 1px; height: 1px; pointer-events: none; }
.ostile label {
  margin: 0; height: 100%; padding: 14px 14px 12px; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); cursor: pointer; font-weight: 750; font-size: 16px;
}
.ostile label span { display: block; font-weight: 500; font-size: 13px; color: var(--muted); margin-top: 4px; }
.ostile input:checked + label { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.ostile input:focus-visible + label { outline: 2px solid var(--focus); outline-offset: 2px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.seg { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-bottom: 12px; }
.seg label { display: flex; gap: 7px; align-items: center; font-weight: 600; margin: 0; }
.seg input { accent-color: var(--accent); }
.formfoot { display: flex; gap: 10px; padding: 22px 0 60px; }
.note { border-left: 3px solid var(--warn); padding: 6px 0 6px 12px; font-size: 14px; margin: 8px 0 0; max-width: 72ch; }
.note.info { border-left-color: var(--accent); }

/* upload */
.drop {
  border: 1.5px dashed var(--line); border-radius: var(--radius); padding: 22px; text-align: left;
  display: flex; gap: 14px; align-items: center; flex-wrap: wrap;
}
.drop.over { border-color: var(--accent); background: var(--accent-soft); }
.progress { flex: 1 1 220px; }

/* login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 24px; position: relative; overflow: hidden; }
.login form { width: min(360px, 100%); position: relative; z-index: 1; }
.login h1 { font-size: 44px; font-weight: 850; letter-spacing: -0.045em; margin-bottom: 4px; }
.login p { color: var(--muted); margin-bottom: 22px; }
.login svg.range { position: fixed; left: 0; right: 0; bottom: 0; width: 100%; height: 34vh; }
.error-text { color: var(--danger); font-size: 14px; min-height: 21px; margin-top: 10px; }

/* toast + dialog */
.toasts { position: fixed; left: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 50; max-width: min(440px, calc(100vw - 32px)); }
.toast {
  background: var(--ink); color: var(--bg); padding: 10px 14px; border-radius: var(--radius);
  font-size: 14px; box-shadow: 0 6px 24px rgba(10, 30, 35, 0.25);
}
.toast.error { background: var(--danger); color: #fff; }
dialog {
  border: 1px solid var(--line); border-radius: 10px; padding: 22px; background: var(--surface); color: var(--ink);
  width: min(460px, calc(100vw - 32px)); box-shadow: 0 18px 60px rgba(10, 30, 35, 0.35);
}
dialog::backdrop { background: rgba(12, 30, 34, 0.45); }
dialog h3 { font-size: 19px; margin-bottom: 8px; }
dialog .foot { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }

.loading { padding-top: 60px; padding-bottom: 60px; color: var(--muted); }

@media (max-width: 960px) {
  .vmrow { grid-template-columns: minmax(0, 1fr) auto; gap: 6px 12px; }
  .vmrow .res, .vmrow .mem { grid-column: 1; }
  .vmrow .ridgecell { grid-column: 1 / -1; grid-row: 3; }
  .vmrow .cpu { grid-column: 2; grid-row: 1; }
  .vmrow .acts { grid-column: 2; grid-row: 2; }
  .vmrow .mem { display: none; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid > .label-col { border-bottom: 0; padding-bottom: 0; }
  .cols { grid-template-columns: 1fr; gap: 0; }
  .charts { grid-template-columns: 1fr; }
  .chart, .chart:nth-child(even) { padding: 14px 0; border-right: 0; }
}
@media (max-width: 640px) {
  :root { --gutter: 16px; }
  .topbar .wrap { flex-wrap: wrap; height: auto; gap: 0 12px; padding-top: 10px; }
  .topbar .right { margin-left: auto; }
  .label-long { display: none; }
  .label-short { display: inline; }
  .nav { order: 3; flex: 1 1 100%; overflow-x: auto; margin: 4px 0 0 -6px; }
  .nav a { padding: 8px 6px; }
  .nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--accent); }
  .horizon { padding-top: 24px; }
  .horizon .readouts { gap: 10px 24px; padding-bottom: 78px; }
  .horizon svg.range { height: 70px; }
  .readout .v { font-size: 22px; }
  .actionbar .btn { flex: 0 0 auto; }
  .ostiles { grid-template-columns: 1fr; }
  .row2 { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}