/* One stylesheet, no framework — the dashboard is a list and a detail pane. */

:root {
  color-scheme: light dark;

  --bg: #f6f7f9;
  --panel: #ffffff;
  --panel-2: #f0f2f5;
  --line: #dfe3e8;
  --text: #16191d;
  --dim: #626b76;
  --accent: #2563eb;

  --up: #16a34a;
  --warn: #d97706;
  --down: #dc2626;
  --unknown: #94a3b8;

  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --panel: #1b1e24;
    --panel-2: #23272e;
    --line: #2e333b;
    --text: #e8eaed;
    --dim: #9aa3ae;
    --accent: #60a5fa;

    --up: #22c55e;
    --warn: #f59e0b;
    --down: #ef4444;
    --unknown: #64748b;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  padding-bottom: env(safe-area-inset-bottom);
}

.loading { padding: 3rem; text-align: center; color: var(--dim); }

/* ── shell ─────────────────────────────────────────────────────────────── */

header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

header h1 { font-size: 1rem; margin: 0; font-weight: 600; letter-spacing: -0.01em; }
header .spacer { flex: 1; }

.rollup { display: flex; gap: 0.5rem; align-items: center; font-size: 0.85rem; color: var(--dim); }
.rollup b { color: var(--text); font-variant-numeric: tabular-nums; }

main { max-width: 1100px; margin: 0 auto; padding: 1rem; }

/* ── buttons and fields ────────────────────────────────────────────────── */

button {
  font: inherit;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
}
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger:hover { border-color: var(--down); color: var(--down); }
button:disabled { opacity: 0.5; cursor: default; }

input, select, textarea {
  font: inherit;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.4rem 0.55rem;
  width: 100%;
}
label { display: block; font-size: 0.8rem; color: var(--dim); margin-bottom: 0.2rem; }
.field { margin-bottom: 0.75rem; }
.row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.row > * { flex: 1 1 10rem; }
.check { display: flex; align-items: center; gap: 0.5rem; }
.check input { width: auto; }
.check label { margin: 0; color: var(--text); font-size: 0.9rem; }

/* ── site list ─────────────────────────────────────────────────────────── */

.sites { display: flex; flex-direction: column; gap: 0.5rem; }

.site {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.25rem 0.75rem;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}
.site:hover { border-color: var(--accent); }
.site.open { border-color: var(--accent); }
.site.disabled { opacity: 0.55; }

.dot { width: 12px; height: 12px; border-radius: 50%; background: var(--unknown); flex: none; }
.dot.up { background: var(--up); }
.dot.warn { background: var(--warn); }
.dot.down { background: var(--down); }
.dot.checking { animation: pulse 1s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: 0.25; } }

.site .name { font-weight: 600; }
.site .url { color: var(--dim); font-size: 0.8rem; word-break: break-all; }
.site .facts { grid-column: 2; color: var(--dim); font-size: 0.82rem; font-variant-numeric: tabular-nums; }
.site .meta { text-align: right; color: var(--dim); font-size: 0.8rem; font-variant-numeric: tabular-nums; }

.problems { grid-column: 2 / -1; display: flex; flex-direction: column; gap: 0.2rem; margin-top: 0.25rem; }
.problem { font-size: 0.85rem; display: flex; gap: 0.45rem; align-items: baseline; }
.tag {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.05rem 0.35rem;
  border-radius: 4px;
  border: 1px solid currentColor;
  flex: none;
}
.tag.warn { color: var(--warn); }
.tag.down { color: var(--down); }

/* ── sparkline ─────────────────────────────────────────────────────────── */

.spark { display: flex; gap: 1px; align-items: flex-end; height: 28px; }
.spark i { display: block; width: 3px; border-radius: 1px; background: var(--unknown); }
.spark i.up { background: var(--up); }
.spark i.warn { background: var(--warn); }
.spark i.down { background: var(--down); }

/* ── detail ────────────────────────────────────────────────────────────── */

.detail {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  padding: 1rem;
  margin-top: -0.5rem;
}
.detail h3 { margin: 1rem 0 0.4rem; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--dim); }
.detail h3:first-child { margin-top: 0; }
.detail .actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th { text-align: left; color: var(--dim); font-weight: 500; padding: 0.25rem 0.5rem 0.25rem 0; }
td { padding: 0.25rem 0.5rem 0.25rem 0; border-top: 1px solid var(--line); vertical-align: top; word-break: break-word; }
td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
a { color: var(--accent); }

.empty { color: var(--dim); font-size: 0.85rem; padding: 0.4rem 0; }

/* ── login ─────────────────────────────────────────────────────────────── */

.login { max-width: 22rem; margin: 15vh auto; padding: 1.5rem; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.login h1 { font-size: 1.1rem; margin: 0 0 1rem; }
.error { color: var(--down); font-size: 0.85rem; min-height: 1.2em; }

/* ── dialog ────────────────────────────────────────────────────────────── */

dialog {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--text);
  padding: 1.25rem;
  width: min(34rem, calc(100vw - 2rem));
}
dialog::backdrop { background: rgb(0 0 0 / 0.5); }
dialog h2 { margin: 0 0 1rem; font-size: 1rem; }
dialog .actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 1rem; }

.offline { background: var(--warn); color: #000; text-align: center; font-size: 0.8rem; padding: 0.2rem; }

@media (max-width: 560px) {
  .site { grid-template-columns: auto 1fr; }
  .site .meta { grid-column: 2; text-align: left; }
}