:root {
  --bg: #0b0e13;
  --bg-elevated: #12161d;
  --bg-card: #10141a;
  --line: #1e2530;
  --text: #e7ecef;
  --text-muted: #7c8a97;
  --up: #39d98a;
  --down: #ff5c5c;
  --pending: #f5a623;
  --font-display: 'Space Grotesk', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  -webkit-font-smoothing: antialiased;
}

/* Faint ambient scanline drifting down the page — the one motion cue */
.scanline {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(57, 217, 138, 0.04) 45%,
    rgba(57, 217, 138, 0.07) 50%,
    rgba(57, 217, 138, 0.04) 55%,
    transparent 100%
  );
  height: 220px;
  animation: drift 9s linear infinite;
}
@keyframes drift {
  0% { transform: translateY(-220px); }
  100% { transform: translateY(100vh); }
}
@media (prefers-reduced-motion: reduce) {
  .scanline { animation: none; display: none; }
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 32px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(11, 14, 19, 0.85);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
}
.brand-mark { color: var(--up); display: flex; }
.brand-accent { color: var(--up); }

.topbar-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 56px 32px 96px;
}

.intro { max-width: 640px; margin-bottom: 40px; }
.intro h1 {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}
.intro p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
}

.add-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 8px;
}
.add-form input,
.add-form select {
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  padding: 11px 13px;
  border-radius: 7px;
  outline: none;
}
.add-form input:focus,
.add-form select:focus {
  border-color: var(--up);
}
#f-name { flex: 1 1 200px; }
#f-url { flex: 2 1 280px; }
#f-interval { flex: 0 0 175px; }
.add-form button {
  flex: 0 0 auto;
  background: var(--up);
  color: #05130c;
  border: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 11px 20px;
  border-radius: 7px;
  cursor: pointer;
  transition: filter 0.15s ease;
}
.add-form button:hover { filter: brightness(1.08); }
.add-form button:focus-visible,
.remove-btn:focus-visible,
.add-form input:focus-visible,
.add-form select:focus-visible {
  outline: 2px solid var(--up);
  outline-offset: 2px;
}

.form-error {
  color: var(--down);
  font-size: 0.85rem;
  margin: 10px 2px 30px;
}

.empty-state {
  color: var(--text-muted);
  font-size: 0.9rem;
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 32px;
  text-align: center;
  margin-top: 30px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 20px 16px;
  position: relative;
  overflow: hidden;
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
}
.card-name {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 600;
  margin: 0 0 4px;
}
.card-url {
  color: var(--text-muted);
  font-size: 0.78rem;
  text-decoration: none;
  word-break: break-all;
}
.card-url:hover { color: var(--up); }

.status-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 5px 9px;
  border-radius: 20px;
  border: 1px solid var(--line);
  white-space: nowrap;
  flex-shrink: 0;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pending);
}
.card[data-status="up"] .status-pill { color: var(--up); border-color: rgba(57,217,138,0.35); }
.card[data-status="up"] .status-dot { background: var(--up); box-shadow: 0 0 0 3px rgba(57,217,138,0.18); animation: pulse-dot 2s ease-in-out infinite; }
.card[data-status="down"] .status-pill { color: var(--down); border-color: rgba(255,92,92,0.35); }
.card[data-status="down"] .status-dot { background: var(--down); box-shadow: 0 0 0 3px rgba(255,92,92,0.18); }
.card[data-status="pending"] .status-pill { color: var(--pending); border-color: rgba(245,166,35,0.35); }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

.pulse {
  width: 100%;
  height: 60px;
  display: block;
  margin-bottom: 14px;
}

.card-foot {
  display: flex;
  align-items: center;
  gap: 18px;
  border-top: 1px solid var(--line);
  padding-top: 13px;
}
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.stat-value { font-size: 0.85rem; font-weight: 500; }

.remove-btn {
  margin-left: auto;
  background: none;
  border: 1px solid var(--line);
  color: var(--text-muted);
  border-radius: 6px;
  width: 26px;
  height: 26px;
  cursor: pointer;
  font-size: 0.8rem;
  line-height: 1;
  transition: all 0.15s ease;
}
.remove-btn:hover { color: var(--down); border-color: rgba(255,92,92,0.4); }

@media (max-width: 560px) {
  .topbar { padding: 16px 20px; }
  .wrap { padding: 36px 20px 80px; }
  .intro h1 { font-size: 1.6rem; }
  #f-name, #f-url, #f-interval { flex-basis: 100%; }
}