/* Mobile-first, dark by default, light when the phone asks for it.
   Tap targets are 44px minimum — this is a control plane held one-handed. */

:root {
  --bg: #0b1020;
  --card: #151b2e;
  --line: #232b45;
  --fg: #e8ecf7;
  --dim: #93a0c0;
  --ok: #3ecf8e;
  --warn: #f2c14e;
  --bad: #f2555a;
  --accent: #6aa8ff;
  --radius: 12px;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fb; --card: #fff; --line: #e2e6f0; --fg: #131722; --dim: #5b6580;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); }
body {
  font: 16px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; }

.app { padding-bottom: calc(64px + env(safe-area-inset-bottom)); }
.screen { padding: 16px 16px 8px; max-width: 720px; margin: 0 auto; }
.screen.center { min-height: 90vh; display: flex; flex-direction: column; justify-content: center; align-items: center; }
h1 { font-size: 22px; margin: 8px 0 2px; }
h2 { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--dim); margin: 22px 0 8px; }
.brand { font-size: 40px; font-weight: 700; letter-spacing: -.04em; margin-bottom: 12px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; width: 100%; max-width: 360px; }
.card.error { border-color: var(--bad); }
.err-msg { color: var(--bad); margin-top: 10px; font-size: 14px; }
.hint { color: var(--dim); font-size: 13px; margin-top: 6px; }
.footnote { color: var(--dim); font-size: 12px; margin: 24px 0 8px; text-align: center; }

button {
  font: inherit; color: inherit; background: none; border: 0;
  min-height: 44px; border-radius: 10px; cursor: pointer;
}
button.primary { width: 100%; background: var(--accent); color: #08122a; font-weight: 650; margin-top: 12px; }
button.primary:disabled { opacity: .5; }
button.link { display: block; width: 100%; color: var(--accent); margin-top: 8px; font-size: 14px; }

input.code {
  width: 100%; font: 600 32px/1 ui-monospace, monospace; letter-spacing: .35em; text-align: center;
  padding: 14px; margin-top: 12px; background: var(--bg); color: var(--fg);
  border: 1px solid var(--line); border-radius: 10px;
}

/* banner: the one-line verdict */
.banner { border-radius: var(--radius); padding: 16px; margin-bottom: 16px; border: 1px solid var(--line); background: var(--card); }
.banner.clean { border-color: var(--ok); }
.banner.failing, .banner.error { border-color: var(--bad); }
.banner-state { font-size: 20px; font-weight: 650; }
.banner.clean .banner-state { color: var(--ok); }
.banner.failing .banner-state, .banner.error .banner-state { color: var(--bad); }
.banner-text { color: var(--dim); font-size: 14px; margin-top: 2px; }

.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 8px; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px; }
.tile.failing, .tile.error { border-color: var(--bad); }
.tile.clean { border-color: color-mix(in srgb, var(--ok) 45%, var(--line)); }
.tile-name { font-weight: 600; }
.tile-state { font-size: 12px; color: var(--dim); }
.tile-sub { font-size: 12px; color: var(--warn); }

.row {
  display: block; width: 100%; text-align: left;
  padding: 12px 4px; border-bottom: 1px solid var(--line);
}
.row.tappable:active { background: var(--card); }
.row-main { font-weight: 550; display: flex; align-items: center; gap: 8px; }
.row-sub { color: var(--dim); font-size: 13px; margin-top: 2px; }
.row.sev-high .row-main { color: var(--bad); }
.row.sev-medium .row-main { color: var(--warn); }

.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--dim); display: inline-block; }
.dot.running { background: var(--ok); }
.chip { font-size: 12px; padding: 2px 8px; border-radius: 999px; background: var(--line); color: var(--dim); vertical-align: middle; }
.chip.running { background: color-mix(in srgb, var(--ok) 25%, transparent); color: var(--ok); }

.tabs { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 10px; }
.tab { padding: 0 14px; border: 1px solid var(--line); color: var(--dim); white-space: nowrap; }
.tab.on { border-color: var(--accent); color: var(--accent); }
.tab.refresh { margin-left: auto; }

.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 4px; }
.action { padding: 0 16px; border: 1px solid var(--line); color: var(--fg); }
.action.allowed { border-color: var(--accent); }
.action.needs-tunnel { border-color: var(--warn); color: var(--warn); }
.action.forbidden { display: none; } /* not reachable from mobile: do not tease */
.action:disabled { opacity: .55; }

.spinner {
  width: 26px; height: 26px; margin: 28px auto; border-radius: 50%;
  border: 3px solid var(--line); border-top-color: var(--accent);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 2.4s; } }

.nav {
  position: fixed; left: 0; right: 0; bottom: 0; display: flex;
  background: color-mix(in srgb, var(--card) 92%, transparent);
  backdrop-filter: blur(12px); border-top: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
}
.nav-item { flex: 1; color: var(--dim); font-size: 13px; border-radius: 0; }
.nav-item.on { color: var(--accent); font-weight: 600; }

/* action sheet: the confirm ladder */
.sheet {
  position: fixed; inset: 0; background: rgba(0,0,0,.55);
  display: flex; align-items: flex-end; justify-content: center; z-index: 20;
}
.sheet-card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 20px 18px calc(20px + env(safe-area-inset-bottom));
  width: 100%; max-width: 560px; max-height: 86vh; overflow-y: auto;
}
.sheet-card h2 { margin-top: 0; color: var(--fg); font-size: 18px; text-transform: none; letter-spacing: 0; }
.plan { font-family: ui-monospace, monospace; font-size: 13px; background: var(--bg); padding: 10px; border-radius: 8px; }
.sheet-card .code { letter-spacing: .1em; font-size: 22px; }
.run-status { font-weight: 650; margin: 8px 0; }
.run-status.running { color: var(--warn); }
.run-status.done { color: var(--ok); }
.run-status.failed { color: var(--bad); }
.run-status.confirm_required { color: var(--warn); }
.ok-msg { color: var(--ok); }
.log {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  padding: 10px; font-size: 12px; max-height: 40vh; overflow: auto; white-space: pre-wrap;
}

/* second-level section tabs, and the one-line stats strip */
.tabs.sub { padding-bottom: 6px; }
.tabs.sub .tab { font-size: 14px; min-height: 36px; }
.row-sub.stats { padding: 2px 4px 10px; }