/* Uptime board. Cool slate paper, two signal colours, system type. The one
   loud element is each site's signal strip; everything around it stays quiet. */

:root {
  --bg: #e9edf1;
  --surface: #f6f8fa;
  --ink: #15212c;
  --muted: #5a6977;
  --line: #c9d2da;
  --up: #17895c;
  --up-soft: #b9e3cf;
  --down: #c8382f;
  --down-soft: #f3c4bf;
  --pending: #8b98a5;
  --warn: #b26b00;
  --focus: #2f6fd1;
  --radius-field: 6px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e151c;
    --surface: #151f29;
    --ink: #e4ebf1;
    --muted: #8c9bab;
    --line: #273543;
    --up: #39c486;
    --up-soft: #1d4a37;
    --down: #ff6f62;
    --down-soft: #4f2420;
    --pending: #66778a;
    --warn: #f0a63c;
    --focus: #7aa7ff;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 "Avenir Next", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  font-variant-numeric: tabular-nums;
}

.page {
  max-width: 64rem;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

/* --- Masthead: the overall state, said in one sentence --------------------- */

.brand {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin: 0 0 2.25rem;
  font-weight: 600;
  color: var(--muted);
}

.brand-mark {
  width: .8rem;
  height: .8rem;
  border-radius: 50%;
  background: var(--up);
  box-shadow: 0 0 0 4px var(--up-soft);
}

body[data-state="down"] .brand-mark { background: var(--down); box-shadow: 0 0 0 4px var(--down-soft); }
body[data-state="pending"] .brand-mark { background: var(--pending); box-shadow: none; }

.headline {
  margin: 0;
  max-width: 18ch;
  font-size: clamp(2.4rem, 6vw, 4.25rem);
  line-height: 1.02;
  font-weight: 700;
  letter-spacing: -.025em;
}

body[data-state="down"] .headline { color: var(--down); }

.lede {
  max-width: 34rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.section-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 650;
}

/* --- Add form -------------------------------------------------------------- */

.add {
  margin: 3rem 0 2.75rem;
  padding: 1.25rem 1.25rem 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.add-form {
  display: grid;
  grid-template-columns: minmax(14rem, 2.2fr) minmax(8rem, 1.2fr) 6.5rem 8.5rem auto;
  gap: .75rem;
  align-items: end;
  margin-top: .85rem;
}

.field { display: grid; gap: .3rem; font-size: .85rem; color: var(--muted); }
.field em { font-style: normal; opacity: .8; }

input, select {
  width: 100%;
  min-height: 2.6rem;
  padding: .5rem .7rem;
  font: inherit;
  font-size: 1rem;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-field);
}

input::placeholder { color: var(--pending); }

.primary {
  min-height: 2.6rem;
  padding: 0 1.15rem;
  font: inherit;
  font-weight: 650;
  color: #fff;
  background: var(--ink);
  border: 0;
  border-radius: var(--radius-field);
  cursor: pointer;
  white-space: nowrap;
}

@media (prefers-color-scheme: dark) {
  .primary { color: var(--bg); }
}

.primary:disabled { opacity: .55; cursor: progress; }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.form-message { min-height: 1.4rem; margin: .65rem 0 0; font-size: .92rem; }
.form-message.is-error { color: var(--down); }
.form-message.is-ok { color: var(--up); }

/* --- Board ----------------------------------------------------------------- */

.board-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding-bottom: .6rem;
  border-bottom: 1px solid var(--line);
}

.board-meta { margin: 0; color: var(--muted); font-size: .88rem; }

.board { list-style: none; margin: 0; padding: 0; }

.site {
  display: grid;
  grid-template-columns: minmax(0, 14rem) minmax(0, 1fr) 9rem 9rem 2rem;
  gap: 1.25rem;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.site-id { min-width: 0; }

.site-name {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin: 0;
  font-weight: 650;
  overflow-wrap: anywhere;
}

.dot { flex: none; width: .6rem; height: .6rem; border-radius: 50%; background: var(--pending); }
.site[data-state="up"] .dot { background: var(--up); }
.site[data-state="down"] .dot { background: var(--down); }

.site-url {
  display: block;
  margin-top: .1rem;
  color: var(--muted);
  font-size: .85rem;
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-url:hover { text-decoration: underline; }

.site-settings { margin: .15rem 0 0; color: var(--muted); font-size: .78rem; }

/* The signal strip: one bar per check, height = response time. */
.strip {
  display: grid;
  grid-template-columns: repeat(40, minmax(0, 1fr));
  align-items: end;
  gap: 2px;
  height: 2.75rem;
}

.bar { height: var(--h, 30%); min-height: 3px; border-radius: 1.5px; background: var(--up); }
.bar.is-down { height: 100%; background: var(--down); }
.bar.is-empty { height: 3px; background: var(--line); }

.figure { margin: 0; font-size: 1.35rem; font-weight: 650; line-height: 1.1; }
.figure small { display: block; margin-top: .2rem; font-size: .75rem; font-weight: 500; color: var(--muted); }
.figure.is-down { color: var(--down); }

/* Error budget: what is left of the failures the SLO allows this week. */
.slo { min-width: 0; }
.budget {
  display: block;
  height: 4px;
  margin-top: .45rem;
  overflow: hidden;
  border-radius: 2px;
  background: var(--line);
}
.budget-fill { display: block; width: var(--left, 0%); height: 100%; background: var(--up); }
.budget.is-low .budget-fill { background: var(--warn); }
.slo-note { margin: .3rem 0 0; color: var(--muted); font-size: .75rem; }
.slo-note.is-low { color: var(--warn); }
.slo-note.is-spent { color: var(--down); }

.last { margin: 0; font-size: .9rem; line-height: 1.35; }
.last small { display: block; color: var(--muted); font-size: .78rem; }
.last.is-down { color: var(--down); }

.remove {
  width: 2rem;
  height: 2rem;
  padding: 0;
  font: inherit;
  font-size: 1.15rem;
  line-height: 1;
  color: var(--muted);
  background: none;
  border: 1px solid transparent;
  border-radius: 50%;
  cursor: pointer;
}

.remove:hover { color: var(--down); border-color: var(--line); }

.empty, .board-error { margin: 1.5rem 0; color: var(--muted); }
.board-error { color: var(--down); }

.footnote {
  max-width: 40rem;
  margin-top: 2.5rem;
  color: var(--muted);
  font-size: .85rem;
}

/* --- Small screens ----------------------------------------------------------- */

@media (max-width: 52rem) {
  .add-form { grid-template-columns: 1fr 1fr; }
  .field-url, .field-name { grid-column: 1 / -1; }
  .primary { grid-column: 1 / -1; }

  .site {
    grid-template-columns: minmax(0, 1fr) auto auto;
    grid-template-areas:
      "id    id    remove"
      "strip strip strip"
      "up    last  last";
    gap: .65rem 1rem;
  }
  .site-id { grid-area: id; }
  .strip { grid-area: strip; }
  .slo { grid-area: up; }
  .last { grid-area: last; text-align: right; }
  .remove { grid-area: remove; }
}

@media (max-width: 30rem) {
  .page { padding: 2rem 1rem 3rem; }
  .add { padding: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}