:root {
  --bg: #0d141c;
  --panel: #121b26;
  --ink: #dfe8f3;
  --muted: #97a8be;
  --accent: #1ab48e;
  --accent-soft: rgba(26, 180, 142, 0.15);
  --border: #2a394a;
  --input-bg: #0f1722;
  --summary-bg: #101a26;
  --glow-a: rgba(26, 180, 142, 0.15);
  --glow-b: rgba(80, 126, 255, 0.14);
  --shadow: rgba(0, 0, 0, 0.35);
}

body.theme-light {
  --bg: #f4f7f8;
  --panel: #ffffff;
  --ink: #10201d;
  --muted: #5d7470;
  --accent: #0f9b78;
  --accent-soft: #d6f5ec;
  --border: #d9e4e1;
  --input-bg: #fbfdfd;
  --summary-bg: #fcfefe;
  --glow-a: rgba(15, 155, 120, 0.06);
  --glow-b: rgba(80, 126, 255, 0.05);
  --shadow: rgba(16, 32, 29, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 5% 5%, var(--glow-a), transparent 35%),
    radial-gradient(circle at 90% 90%, var(--glow-b), transparent 40%),
    var(--bg);
  min-height: 100vh;
}

.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(145deg, var(--glow-a), var(--glow-b));
}

.layout {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 24px auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 12px 28px var(--shadow);
  padding: 18px;
}

h1 {
  margin: 0;
  letter-spacing: 0.2px;
}

h2 {
  margin: 18px 0 10px;
  font-size: 16px;
}

.subtitle {
  margin: 6px 0 14px;
  color: var(--muted);
  font-size: 14px;
}

label {
  display: block;
  margin: 10px 0 6px;
  font-weight: 600;
  font-size: 13px;
}

select,
input[type="number"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--ink);
}

.meta {
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
  min-height: 38px;
}

.session-summary {
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  color: var(--muted);
  font-size: 13px;
  min-height: 38px;
}

.filter-row {
  margin-top: 10px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.analysis-summary {
  margin-top: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--muted);
  font-size: 13px;
  min-height: 38px;
  background: var(--summary-bg);
  white-space: pre-line;
}

.file-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 56vh;
  overflow: auto;
  padding-right: 4px;
}

.file-item {
  border: 1px solid var(--border);
  background: #fbfdfd;
  border-radius: 10px;
  padding: 8px 10px;
  cursor: pointer;
  transition: all 120ms ease;
  font-size: 13px;
}

.file-item:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.file-item.active {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  min-height: 40px;
}

.toolbar-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.summary-cards {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(6, minmax(100px, 1fr));
  gap: 8px;
}

.summary-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  background: var(--summary-bg);
}

.summary-card .k {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.2px;
}

.summary-card .v {
  font-size: 15px;
  font-weight: 700;
  margin-top: 2px;
}

.confidence-card {
  margin-top: 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  background: var(--summary-bg);
  color: var(--muted);
  font-size: 12px;
  white-space: pre-line;
}

.toggle-inline {
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}

.trend-plot {
  margin-top: 10px;
  height: 220px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

#status {
  color: var(--muted);
  font-size: 14px;
}

.button {
  border: 1px solid var(--accent);
  color: #fff;
  background: var(--accent);
  text-decoration: none;
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
}

.button.hidden {
  display: none;
}

.button.danger {
  border-color: #c73737;
  background: #c73737;
}

.button.danger:hover {
  background: #b82f2f;
}

.button.warn {
  border-color: #d08a12;
  background: #d08a12;
}

.button.warn:hover {
  background: #bb7b10;
}

.plot {
  margin-top: 12px;
  height: 72vh;
  min-height: 440px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

@media (max-width: 960px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .plot {
    height: 62vh;
    min-height: 360px;
  }
  .summary-cards {
    grid-template-columns: repeat(3, minmax(90px, 1fr));
  }
}