:root {
  --bg: #f2f5f7;
  --panel: rgba(255, 255, 255, 0.74);
  --line: rgba(19, 32, 47, 0.12);
  --text: #0f1e2e;
  --muted: #58708a;
  --good: #0d8f64;
  --bad: #da3f45;
  --accent: #1f7ab8;
  --shadow: 0 22px 50px rgba(18, 42, 67, 0.11);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 10%, #e7f5f1, transparent 42%),
    radial-gradient(circle at 90% 0%, #f8f0de, transparent 35%),
    linear-gradient(170deg, #ecf2f7 0%, #f7f8f7 100%);
  padding: 30px 18px;
}

.bg-glow {
  position: fixed;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  filter: blur(50px);
  z-index: -1;
  opacity: 0.35;
}

.bg-glow-one {
  top: -80px;
  right: -80px;
  background: #98d8bc;
}

.bg-glow-two {
  bottom: -110px;
  left: -100px;
  background: #f4d6a4;
}

.app-shell {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  gap: 8px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(7px);
}

.hero {
  padding: 6px 12px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  font-size: 12px;
}

h1 {
  margin: 0;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.08;
}

.hero-sub {
  margin: 8px 0 0;
  color: var(--muted);
}

.controls {
  padding: 16px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(220px, 0.6fr);
  gap: 14px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 700;
}

.form-row {
  display: flex;
  gap: 10px;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 11px 12px;
  font-size: 14px;
  font-family: "JetBrains Mono", monospace;
  color: var(--text);
  background: rgba(255, 255, 255, 0.85);
}

input:focus {
  outline: 2px solid rgba(31, 122, 184, 0.3);
  border-color: rgba(31, 122, 184, 0.5);
}

.interval-wrap {
  display: grid;
  align-content: end;
}

.btn {
  border: 0;
  border-radius: 12px;
  padding: 11px 14px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(125deg, #0f7baf, #176d92);
  color: white;
}

.btn-secondary {
  background: #163a53;
  color: white;
  min-width: 88px;
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
  font-size: 12px;
  padding: 6px 10px;
}

.summary {
  padding: 14px 16px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.metric {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.7);
  padding: 10px 12px;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.metric strong {
  font-size: 18px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}

.timeline-panel {
  padding: 14px 16px;
}

.timeline-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
}

.timeline-head h2 {
  margin: 0;
  font-size: 19px;
}

.timeline-head p {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.timeline-list {
  display: grid;
  gap: 9px;
}

.timeline-row {
  display: grid;
  grid-template-columns: minmax(180px, 280px) 1fr;
  gap: 12px;
  align-items: center;
}

.timeline-target {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.timeline-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(10px, 1fr);
  gap: 4px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.65);
  overflow-x: auto;
}

.timeline-dot {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 3px;
  border: 1px solid rgba(19, 32, 47, 0.1);
  background: rgba(90, 111, 133, 0.22);
}

.timeline-dot.up {
  background: rgba(13, 143, 100, 0.72);
}

.timeline-dot.down {
  background: rgba(218, 63, 69, 0.72);
}

.timeline-empty {
  color: var(--muted);
  font-size: 13px;
}

.card {
  padding: 14px;
  cursor: grab;
}

.card.dragging {
  opacity: 0.55;
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.status-pill {
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.08em;
  font-weight: 800;
  text-transform: uppercase;
  background: rgba(88, 112, 138, 0.15);
  color: var(--muted);
}

.status-pill.up {
  color: var(--good);
  background: rgba(13, 143, 100, 0.14);
}

.status-pill.down {
  color: var(--bad);
  background: rgba(218, 63, 69, 0.14);
}

.url {
  margin: 12px 0;
  overflow-wrap: anywhere;
  font-family: "JetBrains Mono", monospace;
  font-size: 15px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.stats div {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px;
}

.stats span {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.stats strong {
  display: block;
  margin-top: 3px;
  font-family: "JetBrains Mono", monospace;
  font-size: 14px;
}

.note {
  margin: 11px 0 0;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 860px) {
  .controls {
    grid-template-columns: 1fr;
  }

  .summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 580px) {
  body {
    padding: 16px;
  }

  .hero {
    padding: 16px;
    flex-direction: column;
    align-items: flex-start;
  }

  .summary {
    grid-template-columns: 1fr;
  }

  .form-row {
    flex-direction: column;
  }

  .timeline-row {
    grid-template-columns: 1fr;
  }
}