:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --panel: #ffffff;
  --panel-alt: #f8fafc;
  --text: #132033;
  --muted: #58667a;
  --line: #d8e0ea;
  --accent: #3467eb;
  --accent-soft: rgba(52, 103, 235, 0.12);
  --success: #1c9a62;
  --shadow: 0 18px 40px rgba(18, 32, 51, 0.08);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(180deg, #eef3ff 0%, var(--bg) 28%, var(--bg) 100%);
  color: var(--text);
}

button,
input {
  font: inherit;
}

.page-shell {
  max-width: 1240px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(260px, 1fr);
  gap: 20px;
  align-items: start;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.02;
}

.hero-copy,
.hero-note p,
.panel-header p,
.selection-summary,
.metric-note,
.empty-state,
.series-meta,
.group-summary {
  color: var(--muted);
}

.hero-copy {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 1rem;
  line-height: 1.6;
}

.hero-note,
.panel,
.metric-card {
  background: var(--panel);
  border: 1px solid rgba(216, 224, 234, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-note {
  padding: 18px;
}

.hero-note strong {
  display: block;
  margin-bottom: 8px;
}

.panel {
  padding: 20px;
  margin-bottom: 24px;
}

.panel-header,
.control-card-header,
.series-card-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.control-card {
  background: var(--panel-alt);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
}

.control-card label {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.control-card span {
  font-size: 0.92rem;
  color: var(--muted);
}

input[type="date"] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 11px 12px;
  background: #fff;
  color: var(--text);
}

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

.button-row.compact {
  gap: 8px;
}

.button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 14px;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.12s ease, border-color 0.12s ease;
}

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

.button-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.button-ghost {
  background: #fff;
  color: var(--text);
}

.series-list,
.selection-chips {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.series-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  background: #fff;
}

.series-card.active {
  border-color: var(--accent);
  background: #f8fbff;
}

.series-label,
.event-toggle {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  cursor: pointer;
}

.series-label input,
.event-toggle input {
  margin-top: 3px;
}

.series-title {
  display: block;
  font-weight: 700;
}

.series-meta {
  margin-top: 4px;
  font-size: 0.9rem;
  line-height: 1.45;
}

.selection-summary {
  margin: 14px 0 0;
  line-height: 1.5;
}

.selection-chip {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.selection-chip small {
  color: var(--muted);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.metric-card {
  padding: 18px;
  min-height: 154px;
}

.metric-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.metric-value {
  margin: 16px 0 8px;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  line-height: 1;
}

.metric-note {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.5;
}

.table-wrap {
  overflow-x: auto;
  margin-top: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th,
td {
  padding: 14px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  font-size: 0.86rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.group-row td {
  background: #f6f8fc;
  font-weight: 700;
  color: var(--text);
  border-bottom: 1px solid var(--line);
}

.group-summary {
  font-weight: 500;
  font-size: 0.9rem;
}

.event-title {
  font-weight: 700;
}

.event-subtitle,
.mono-pill,
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.82rem;
}

.tag.success {
  background: rgba(28, 154, 98, 0.12);
  color: var(--success);
}

.empty-state {
  padding: 20px 12px;
  text-align: center;
}

@media (max-width: 1080px) {
  .controls-grid,
  .metrics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .page-shell {
    padding: 24px 14px 36px;
  }

  .hero,
  .controls-grid,
  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .panel-header,
  .control-card-header,
  .series-card-head {
    flex-direction: column;
    align-items: stretch;
  }

  .button-row {
    width: 100%;
  }

  .button {
    flex: 1 1 auto;
    justify-content: center;
  }
}