:root {
  color-scheme: dark;
  --bg: #0f1117;
  --panel: #171b24;
  --border: #2a3142;
  --text: #f3f5f9;
  --muted: #9aa3b2;
  --accent: #9146ff;
  --accent-hover: #7c3aed;
  --danger: #ef4444;
  --success: #22c55e;
  --radius: 12px;
  font-family: Inter, Segoe UI, system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #1a1430 0%, var(--bg) 45%);
  color: var(--text);
}

#app {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.hidden {
  display: none !important;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

h1,
h2 {
  margin: 0 0 8px;
}

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

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.topbar-actions {
  display: flex;
  gap: 8px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

input {
  flex: 1;
  background: #0d1018;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 12px 14px;
  font-size: 15px;
}

button {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  background: var(--accent-hover);
}

button.secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

button.secondary:hover {
  border-color: var(--accent);
}

button.danger {
  background: transparent;
  border: 1px solid var(--danger);
  color: #fecaca;
}

.categories-list {
  display: grid;
  gap: 12px;
}

.category-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #11151d;
}

.category-card img {
  width: 54px;
  height: 72px;
  object-fit: cover;
  border-radius: 6px;
  background: #0d1018;
}

.category-meta {
  flex: 1;
}

.category-meta h3 {
  margin: 0 0 4px;
  font-size: 18px;
}

.category-meta p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.category-actions {
  display: flex;
  gap: 8px;
}

.lookup-result {
  margin-top: 16px;
  padding: 16px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.lookup-result img {
  width: 72px;
  height: 96px;
  object-fit: cover;
  border-radius: 8px;
}

.error {
  color: #fecaca;
  margin-top: 12px;
}

.status {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: #11151d;
  border: 1px solid var(--border);
  padding: 12px 16px;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.status.success {
  border-color: var(--success);
}

.status.error {
  border-color: var(--danger);
}

.text-link,
.category-link {
  color: var(--text);
  text-decoration: none;
}

.category-link:hover,
.text-link:hover {
  color: #c4b5fd;
  text-decoration: underline;
}

.breadcrumb {
  margin: 0 0 8px;
  font-size: 14px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.stat-label {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-value {
  margin: 0;
  font-size: 28px;
  font-weight: 700;
}

.stat-value-sm {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.35;
}

.stat-hint {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.range-tabs {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.range-btn.active {
  border-color: var(--accent);
  color: #c4b5fd;
}

.chart-wrap {
  position: relative;
  width: 100%;
}

#viewer-chart {
  width: 100%;
  height: 320px;
  display: block;
}

.chart-legend {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
  font-size: 13px;
  flex-wrap: wrap;
}

.streamers-list {
  display: grid;
  gap: 10px;
}

.streamer-row {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #11151d;
}

.streamer-row .rank {
  color: var(--muted);
  font-weight: 600;
}

.streamer-title {
  margin: 2px 0 0;
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 52ch;
}

@media (max-width: 640px) {
  .topbar,
  .add-form,
  .category-card {
    flex-direction: column;
    align-items: stretch;
  }

  .category-actions {
    justify-content: flex-end;
  }

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

  .streamer-row {
    grid-template-columns: 32px 1fr;
  }

  .streamer-row strong {
    grid-column: 2;
  }
}