:root {
  color-scheme: dark;
  --bg: #020617;
  --card: rgba(15, 23, 42, 0.94);
  --text: #e5e7eb;
  --muted: #94a3b8;
  --line: rgba(148, 163, 184, 0.22);
  --accent: #38bdf8;
  --good: #22c55e;
  --warn: #f59e0b;
  --bad: #f97316;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, #172554 0, #020617 42%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.app {
  width: min(860px, 100%);
  margin: 0 auto;
  padding: 18px;
  padding-bottom: 46px;
}

.top {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 2px 8px;
}

h1, h2, h3, p {
  margin-top: 0;
}

h1 {
  margin-bottom: 6px;
  font-size: 31px;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

h2 {
  margin-bottom: 14px;
  font-size: 19px;
}

h3 {
  margin-bottom: 4px;
  font-size: 17px;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.14em;
  margin-bottom: 7px;
  font-weight: 800;
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 13px;
}

.badge, .pill, .status-dot {
  flex: 0 0 auto;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(2, 6, 23, 0.72);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.badge.online { color: var(--good); }
.badge.offline { color: var(--bad); }

.card, .meter-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 16px;
  margin: 14px 0;
  box-shadow: 0 20px 45px rgba(0,0,0,0.22);
}

.warning {
  border-color: rgba(245, 158, 11, 0.55);
  background: rgba(120, 53, 15, 0.45);
}

.grid {
  display: grid;
  gap: 12px;
}

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

label {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin: 10px 0;
}

input, select, textarea, button {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #020617;
  color: var(--text);
  padding: 13px;
  font: inherit;
}

input, select, textarea {
  margin-top: 7px;
}

textarea {
  resize: vertical;
}

button {
  cursor: pointer;
  font-weight: 800;
}

button.primary {
  background: linear-gradient(135deg, #0284c7, #38bdf8);
  color: #fff;
  border: 0;
}

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 10px;
}

.row, .meter-head, .progress-block {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: flex-start;
}

.progress-block {
  align-items: center;
  border: 1px solid var(--line);
  background: rgba(2, 6, 23, 0.48);
  border-radius: 16px;
  padding: 13px;
  margin-bottom: 14px;
}

.meters {
  display: grid;
  gap: 14px;
}

.meter-card.synced {
  border-color: rgba(34, 197, 94, 0.45);
}

.meter-card.pending {
  border-color: rgba(245, 158, 11, 0.55);
}

.meter-card.failed {
  border-color: rgba(249, 115, 22, 0.55);
}

.status-dot.synced { color: var(--good); }
.status-dot.pending { color: var(--warn); }
.status-dot.failed { color: var(--bad); }

.file-label input {
  padding: 14px;
}

.preview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 9px;
  margin: 12px 0;
}

.preview img {
  width: 100%;
  height: 118px;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid var(--line);
}

.queue {
  margin-top: 12px;
}

.queue-item {
  border: 1px solid var(--line);
  background: rgba(2, 6, 23, 0.58);
  border-radius: 16px;
  padding: 13px;
  margin-top: 10px;
}

.queue-item strong {
  display: block;
  margin-bottom: 5px;
}

.queue-item .meta {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.queue-item .result {
  margin-top: 8px;
  padding: 10px;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.86);
  border: 1px solid var(--line);
}

#apiStatus.good { color: var(--good); }
#apiStatus.bad { color: var(--bad); }
#apiStatus.warn { color: var(--warn); }

@media (max-width: 540px) {
  .top, .row, .meter-head, .progress-block {
    display: block;
  }

  .badge, .pill {
    display: inline-block;
    margin-top: 10px;
  }

  .grid.two, .actions {
    grid-template-columns: 1fr;
  }

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