:root {
  --bg: #0f1115;
  --bg2: #171a21;
  --fg: #eef0f4;
  --dim: #9198a8;
  --accent: #52d68a;
  --down: #ff5f7e;
  --timeout: #f2b84b;
  --unchecked: #3a3f4b;
  --border: #2a2e38;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

header {
  text-align: center;
  padding: 2rem 1rem 0.5rem;
  max-width: 640px;
  margin: 0 auto;
}

h1 {
  margin: 0;
  font-size: 2rem;
  letter-spacing: -0.02em;
}

.tag {
  color: var(--dim);
  margin: 0.35rem 0 0;
  font-size: 0.95rem;
}

.caveat {
  color: var(--dim);
  font-size: 0.78rem;
  line-height: 1.5;
  margin: 0.9rem 0 0;
  padding: 0.75rem 0.9rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-align: left;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1rem 2rem;
}

.statusbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.summary {
  font-size: 0.95rem;
  color: var(--fg);
}

.summary .up { color: var(--accent); font-weight: 700; }
.summary .down { color: var(--down); font-weight: 700; }
.summary .timeout { color: var(--timeout); font-weight: 700; }

.actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.troubleToggle {
  color: var(--dim);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
}

.linkbtn {
  background: none;
  border: 1px solid var(--border);
  color: var(--fg);
  font-size: 0.85rem;
  cursor: pointer;
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
}

.linkbtn.primary {
  background: var(--accent);
  color: #05130c;
  font-weight: 700;
  border-color: transparent;
}

.linkbtn:disabled { opacity: 0.5; cursor: default; }

.progressTrack {
  height: 4px;
  background: var(--bg2);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 1.25rem;
}

.progressFill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width 0.2s ease-out;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.5rem;
}

.tile {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-left: 4px solid var(--unchecked);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  text-decoration: none;
  color: var(--fg);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  transition: border-color 0.3s ease, opacity 0.2s ease;
}

.tile:hover { border-color: var(--dim); }

.tile.up { border-left-color: var(--accent); }
.tile.down { border-left-color: var(--down); }
.tile.timeout { border-left-color: var(--timeout); }
.tile.checking { border-left-color: var(--unchecked); }

.tile.hiddenByFilter { display: none; }

.tile .name {
  font-weight: 600;
  font-size: 0.85rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tile .meta {
  font-size: 0.72rem;
  color: var(--dim);
  display: flex;
  justify-content: space-between;
}

.tile .dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--unchecked);
  margin-right: 0.3rem;
}

.tile.up .dot { background: var(--accent); }
.tile.down .dot { background: var(--down); }
.tile.timeout .dot { background: var(--timeout); }
.tile.checking .dot { animation: pulse 1s ease-in-out infinite; }

@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

footer {
  text-align: center;
  color: var(--dim);
  font-size: 0.75rem;
  padding: 1rem 1rem 3rem;
}

footer a { color: var(--dim); }

.sharebar { margin-top: 0.75rem; }