:root {
  --bg: #0b0e14;
  --surface: #131722;
  --surface-2: #1a1f2e;
  --border: #232a3b;
  --text: #e6e9f0;
  --text-dim: #8a93a8;
  --green: #34d399;
  --red: #f87171;
  --amber: #fbbf24;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { background: var(--bg); scrollbar-color: var(--border) transparent; }

body {
  background:
    radial-gradient(1200px 600px at 80% -10%, #1a2340 0%, transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem clamp(1rem, 4vw, 3rem);
}

::selection { background: rgba(79, 124, 255, .35); }

.btn:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 2px solid #4f7cff;
  outline-offset: 2px;
}

/* ---------- header ---------- */

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.6rem;
}

.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  margin-right: .5rem;
  animation: pulse 2s ease-in-out infinite;
}

.brand { display: flex; align-items: center; gap: .75rem; }
.logo { font-size: 1.6rem; }
h1 { font-size: 1.4rem; font-weight: 600; letter-spacing: .02em; }

.meta {
  color: var(--text-dim);
  font-size: .85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .35rem .9rem;
  background: var(--surface);
}

/* ---------- quick check bar ---------- */

.quickbar {
  display: flex;
  gap: .6rem;
  margin-bottom: 1.5rem;
}

.quickbar input {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .8rem 1.1rem;
  color: var(--text);
  font-size: .92rem;
  outline: none;
  transition: border-color .15s ease;
}

.quickbar input::placeholder { color: var(--text-dim); opacity: .7; }
.quickbar input:focus { border-color: #4f7cff; }

.btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: .8rem 1.3rem;
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s ease, border-color .15s ease;
}

.btn:hover { border-color: #33405c; background: #222a3d; }

.btn.primary {
  background: #2952cc;
  border-color: #2952cc;
}

.btn.primary:hover { background: #3563e0; border-color: #3563e0; }

#quick-result:not(:empty) { margin-bottom: 1.5rem; }

/* ---------- notification settings ---------- */

.settings {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 1.5rem;
}

.settings summary {
  cursor: pointer;
  padding: .7rem 1.1rem;
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-dim);
  user-select: none;
}

.settings[open] summary { color: var(--text); border-bottom: 1px solid var(--border); }

.on-badge {
  font-size: .65rem;
  font-weight: 700;
  color: var(--green);
  background: rgba(52, 211, 153, .12);
  border-radius: 999px;
  padding: .15rem .5rem;
  margin-left: .4rem;
  vertical-align: middle;
}

#notify-panel { padding: 1rem 1.1rem; }

.notify-add {
  display: flex;
  gap: .6rem;
  margin-bottom: .9rem;
}

.platform-select {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: .6rem .8rem;
  font-size: .85rem;
  cursor: pointer;
}

.notify-add input {
  flex: 1;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .6rem .8rem;
  color: var(--text);
  font-size: .85rem;
  font-family: Consolas, monospace;
  outline: none;
}

.notify-add input:focus { border-color: #4f7cff; }

.channel-list {
  list-style: none;
  margin-bottom: .9rem;
}

.channel-list li {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .45rem .1rem;
  border-top: 1px solid var(--border);
  font-size: .83rem;
}

.chan-name {
  text-transform: capitalize;
  font-weight: 600;
  min-width: 6.5rem;
}

.chan-url {
  flex: 1;
  color: var(--text-dim);
  font-family: Consolas, monospace;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chan-remove {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  border-radius: 6px;
  padding: .25rem .4rem;
}

.chan-remove:hover { color: var(--red); background: rgba(248, 113, 113, .12); }

.notify-actions {
  display: flex;
  align-items: center;
  gap: .6rem;
}

#notify-status { color: var(--text-dim); font-size: .82rem; }

.hint {
  margin-top: .8rem;
  color: var(--text-dim);
  font-size: .78rem;
}

.checking {
  color: var(--text-dim);
  font-size: .88rem;
  font-family: Consolas, monospace;
  padding: .6rem .2rem;
}

/* ---------- summary bar ---------- */

.summary {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--green);
  border-radius: 12px;
  padding: 1.1rem 1.5rem;
  margin-bottom: 1.5rem;
}

.summary.has-down { border-left-color: var(--red); }

.big { font-size: 2rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.dim { color: var(--text-dim); font-weight: 400; }
.summary-text { font-size: 1rem; }

/* ---------- cards ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.2rem 1.3rem;
  transition: transform .15s ease, border-color .15s ease;
}

.card:hover { transform: translateY(-3px); border-color: #33405c; }

.card-head {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: .35rem;
}

.card-head h2 {
  font-size: 1.02rem;
  font-weight: 600;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.card.up   .dot { background: var(--green); box-shadow: 0 0 10px var(--green); }
.card.down .dot { background: var(--red);   box-shadow: 0 0 10px var(--red);
                  animation: pulse 1.2s ease-in-out infinite; }

@keyframes pulse {
  50% { opacity: .35; }
}

.badge {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .08em;
  padding: .2rem .55rem;
  border-radius: 999px;
}
.card.up   .badge { color: var(--green); background: rgba(52, 211, 153, .12); }
.card.down .badge { color: var(--red);   background: rgba(248, 113, 113, .12); }

.remove {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: .85rem;
  line-height: 1;
  padding: .25rem .4rem;
  border-radius: 6px;
  cursor: pointer;
  opacity: 0;
  transition: opacity .15s ease, color .15s ease, background .15s ease;
}

.card:hover .remove { opacity: 1; }
.remove:hover { color: var(--red); background: rgba(248, 113, 113, .12); }

.url {
  display: block;
  color: var(--text-dim);
  font-size: .82rem;
  text-decoration: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 1rem;
}
.url:hover { color: var(--text); }

/* latency sparkline (server-rendered SVG) */
.spark {
  display: block;
  width: 100%;
  height: 34px;
  margin-bottom: .5rem;
}

.spark polyline {
  fill: none;
  stroke: #4f7cff;
  stroke-width: 2;
  stroke-linejoin: round;
  stroke-linecap: round;
  opacity: .9;
}

.spark-fill { fill: #4f7cff; opacity: .12; }

.card.down .spark polyline { stroke: var(--red); }
.card.down .spark-fill     { fill: var(--red); }

/* Status-page style tick bar: one segment per past check.
   Down-ticks are TALLER than up-ticks — the shape difference keeps
   the history readable for colorblind users, not color alone. */
.ticks {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 14px;
  margin-bottom: .9rem;
}

.tick {
  flex: 1;
  max-width: 8px;
  border-radius: 2px;
}

.tick.ok  { height: 8px;  background: var(--green); opacity: .7; }
.tick.bad { height: 14px; background: var(--red); }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .5rem;
  background: var(--surface-2);
  border-radius: 10px;
  padding: .7rem .9rem;
}

.stats dt {
  color: var(--text-dim);
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: .15rem;
}

.stats dd {
  font-size: .95rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.stats dd.warn { color: var(--amber); }

.detail {
  margin-top: .8rem;
  color: var(--red);
  font-size: .8rem;
  font-family: Consolas, monospace;
  word-break: break-word;
}

/* ---------- empty state ---------- */

.empty {
  text-align: center;
  padding: 4rem 1rem;
  border: 1px dashed var(--border);
  border-radius: 14px;
  color: var(--text-dim);
}

.empty-icon { font-size: 2.6rem; margin-bottom: .8rem; }

.empty h2 {
  color: var(--text);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: .5rem;
}

.empty p { font-size: .9rem; max-width: 34rem; margin: 0 auto; line-height: 1.6; }

.empty code {
  background: var(--surface-2);
  border-radius: 6px;
  padding: .1rem .4rem;
  font-size: .85em;
}

/* ---------- incident feed ---------- */

.incidents {
  margin-top: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem 1.4rem;
}

.incidents h3 {
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-dim);
  margin-bottom: .8rem;
}

.incidents ul { list-style: none; }

.incidents li {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  padding: .4rem 0;
  border-top: 1px solid var(--border);
  font-size: .85rem;
  font-family: Consolas, monospace;
}

.incidents li:first-child { border-top: none; }

.inc-time  { color: var(--text-dim); }
.inc-state { font-weight: 700; min-width: 4.5rem; }
.inc-down .inc-state { color: var(--red); }
.inc-up   .inc-state { color: var(--green); }
.inc-name  { font-weight: 600; }
.inc-detail { color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }