/* PulseWatch — single stylesheet, no build step, no external fonts. */

:root {
  --bg:        #0f1216;
  --surface:   #171b21;
  --surface-2: #1e242c;
  --border:    #2a323c;
  --text:      #e7ecf2;
  --muted:     #8c98a8;
  --accent:    #3b82f6;
  --ok:        #22c55e;
  --warn:      #f59e0b;
  --bad:       #ef4444;
  --radius:    10px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg:        #f5f7fa;
    --surface:   #ffffff;
    --surface-2: #f0f3f7;
    --border:    #dfe5ec;
    --text:      #1a2028;
    --muted:     #64707f;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: min(1120px, 100% - 2rem); margin-inline: auto; }
.center { text-align: center; }
.right  { text-align: right; }
.mono   { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .88em; }
.muted  { color: var(--muted); }
.ok   { color: var(--ok); }
.warn { color: var(--warn); }
.bad  { color: var(--bad); }

/* ---------------------------------------------------------------- topbar */

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.75rem;
}
.topbar .wrap {
  display: flex; align-items: center; gap: 2rem;
  min-height: 58px; flex-wrap: wrap;
}
.brand {
  display: inline-flex; align-items: center; gap: .55rem;
  font-weight: 650; letter-spacing: -.01em; color: var(--text); text-decoration: none;
}
.brand-lg { font-size: 1.35rem; margin-bottom: .35rem; }
.brand-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 22%, transparent);
}
.topbar nav { display: flex; gap: 1.15rem; margin-right: auto; }
.topbar nav a {
  color: var(--muted); text-decoration: none; font-size: .93rem;
  padding: .3rem 0; border-bottom: 2px solid transparent;
}
.topbar nav a:hover { color: var(--text); }
.topbar nav a.active { color: var(--text); border-bottom-color: var(--accent); }
.topbar .user { display: flex; align-items: center; gap: .75rem; font-size: .88rem; color: var(--muted); }
.topbar .user a { color: var(--muted); text-decoration: none; border-bottom: 1px solid transparent; }
.topbar .user a:hover { color: var(--text); }
.topbar .user a.active { color: var(--text); border-bottom-color: var(--accent); }
.topbar .user a.btn { border-bottom: 0; }

/* ------------------------------------------------------------- structure */

.page-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 1rem; flex-wrap: wrap; margin-bottom: 1.25rem;
}
.page-head h1 { margin: 0 0 .2rem; font-size: 1.5rem; letter-spacing: -.015em; }
.page-head p  { margin: 0; }
.page-actions { display: flex; gap: .5rem; flex-wrap: wrap; }
.inline { display: inline; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  margin-bottom: 1.25rem;
}
.card h2 { margin: 0 0 .9rem; font-size: 1.02rem; font-weight: 600; letter-spacing: -.01em; }
.card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: .9rem; }
.card-head h2 { margin: 0; }
.form-card { max-width: 760px; }

.empty { color: var(--muted); padding: 1rem 0; margin: 0; }
.foot {
  display: flex; justify-content: space-between;
  color: var(--muted); font-size: .84rem; padding: 1.5rem 0 2.5rem;
}

/* ----------------------------------------------------------------- stats */

.stat-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: .85rem; margin-bottom: 1.25rem;
}
.stat {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1.15rem;
}
.stat-num { font-size: 1.85rem; font-weight: 650; letter-spacing: -.02em; line-height: 1.1; }
.stat-num small { font-size: .5em; font-weight: 500; color: var(--muted); margin-left: 2px; }
.stat-num.muted-num { color: var(--muted); }
.stat-lbl { color: var(--muted); font-size: .8rem; margin-top: .15rem; }

/* ---------------------------------------------------------------- tables */

.table { width: 100%; border-collapse: collapse; font-size: .91rem; }
.table th {
  text-align: left; font-weight: 550; color: var(--muted);
  font-size: .78rem; text-transform: uppercase; letter-spacing: .04em;
  padding: 0 .7rem .55rem; border-bottom: 1px solid var(--border);
}
.table td { padding: .7rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table td.nowrap, .table th.nowrap { white-space: nowrap; }
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: var(--surface-2); }

/* ----------------------------------------------------------------- pills */

.pill {
  display: inline-block; padding: .16rem .5rem; border-radius: 999px;
  font-size: .69rem; font-weight: 650; letter-spacing: .04em;
}
.pill-up      { background: color-mix(in srgb, var(--ok) 18%, transparent);   color: var(--ok); }
.pill-down    { background: color-mix(in srgb, var(--bad) 18%, transparent);  color: var(--bad); }
.pill-pending { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.pill-paused,
.pill-neutral { background: var(--surface-2); color: var(--muted); }

/* --------------------------------------------------------------- buttons */

.btn {
  display: inline-block; border: 1px solid var(--border); background: var(--surface-2);
  color: var(--text); padding: .5rem .9rem; border-radius: 7px;
  font-size: .88rem; font-weight: 550; cursor: pointer; text-decoration: none;
  transition: filter .12s ease;
}
.btn:hover { filter: brightness(1.14); }
.btn-sm { padding: .34rem .65rem; font-size: .81rem; }
.btn-block { width: 100%; margin-top: .35rem; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-ghost   { background: transparent; }
.btn-danger  { background: transparent; border-color: color-mix(in srgb, var(--bad) 45%, transparent); color: var(--bad); }

/* ----------------------------------------------------------------- forms */

label { display: block; margin-bottom: .95rem; font-size: .88rem; font-weight: 550; }
label small { font-weight: 400; color: var(--muted); }
label > small { display: block; margin-top: .3rem; }
input[type=text], input[type=email], input[type=password],
input[type=number], input[type=url], select {
  width: 100%; margin-top: .35rem; padding: .55rem .7rem;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 7px;
  font: inherit; font-size: .9rem;
}
input:focus, select:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}
label.check { display: flex; align-items: center; gap: .55rem; font-weight: 500; }
label.check input { width: auto; margin: 0; }
fieldset {
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1rem 1.15rem .35rem; margin: 0 0 1.15rem;
}
legend { padding: 0 .45rem; font-size: .8rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 1rem; }
@media (max-width: 640px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }
.form-actions { display: flex; gap: .6rem; margin-top: .35rem; }

.kv { display: grid; grid-template-columns: max-content 1fr; gap: .4rem 1.5rem; margin: 0; font-size: .91rem; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }

/* --------------------------------------------------------------- alerts */

.alert { padding: .7rem .9rem; border-radius: 7px; margin-bottom: 1rem; font-size: .88rem; }
.alert ul { margin: 0; padding-left: 1.1rem; }
.alert-error {
  background: color-mix(in srgb, var(--bad) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--bad) 35%, transparent);
  color: var(--bad);
}
.flash {
  background: color-mix(in srgb, var(--ok) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--ok) 32%, transparent);
  color: var(--ok);
  padding: .7rem .9rem; border-radius: 7px; margin-bottom: 1.15rem; font-size: .88rem;
}

/* ------------------------------------------------------------- auth page */

.centered { display: grid; place-items: center; min-height: 100vh; padding: 1rem; }
.auth-card { width: 100%; max-width: 370px; margin: 0; }
.auth-card .muted { margin-top: 0; margin-bottom: 1.35rem; font-size: .88rem; }

/* ----------------------------------------------------- heatbar/sparkline */

.heatbar { display: flex; gap: 2px; align-items: stretch; height: 34px; }
.heat { flex: 1 1 0; min-width: 2px; border-radius: 2px; background: var(--border); }
.heat-good   { background: var(--ok); }
.heat-mid    { background: var(--warn); }
.heat-poor   { background: var(--bad); }
.heat-nodata { background: var(--border); }
.heat:hover  { filter: brightness(1.4); }

.sparkline { height: 78px; }
.sparkline svg { width: 100%; height: 100%; display: block; overflow: visible; }

/* ---------------------------------------------------------- status page */

.status-body { background: var(--bg); }
.status-wrap { width: min(760px, 100% - 2rem); padding-top: 3rem; }
.status-head { text-align: center; margin-bottom: 2.25rem; }
.status-head h1 { font-size: 1.6rem; margin: 0 0 1.1rem; letter-spacing: -.015em; }
.status-head p { margin: .65rem 0 0; font-size: .84rem; }
.banner {
  display: inline-flex; align-items: center; gap: .6rem;
  padding: .7rem 1.35rem; border-radius: 999px; font-weight: 600; font-size: .95rem;
}
.banner-dot { width: 9px; height: 9px; border-radius: 50%; background: currentColor; }
.banner-ok {
  background: color-mix(in srgb, var(--ok) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--ok) 32%, transparent); color: var(--ok);
}
.banner-bad {
  background: color-mix(in srgb, var(--bad) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--bad) 32%, transparent); color: var(--bad);
}
.banner-neutral { background: var(--surface-2); border: 1px solid var(--border); color: var(--muted); }

.svc {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.1rem 1.25rem; margin-bottom: .85rem;
}
.svc h2 { margin: 0 0 .8rem; font-size: 1rem; }
.svc-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: .7rem; }
.svc-name  { font-weight: 600; }
.svc-state { font-size: .84rem; font-weight: 550; }
.svc-foot {
  display: flex; justify-content: space-between;
  color: var(--muted); font-size: .76rem; margin-top: .45rem;
}
.incident-list { list-style: none; margin: 0; padding: 0; font-size: .89rem; }
.incident-list li { padding: .5rem 0; border-bottom: 1px solid var(--border); }
.incident-list li:last-child { border-bottom: 0; }