*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #22263a;
  --border: #2e3250;
  --text: #e2e8f0;
  --text-muted: #8892a4;
  --accent: #6c8eff;
  --accent-dim: #3a4f99;
  --green: #4ade80;
  --red: #f87171;
  --yellow: #fbbf24;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

#app { min-height: 100vh; }

/* Layout */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  margin-bottom: 32px;
}

header .container { display: flex; align-items: center; justify-content: space-between; }
header h1 { font-size: 18px; font-weight: 600; color: var(--text); }

.header-right { display: flex; align-items: center; gap: 12px; }

.tab-nav {
  display: flex;
  gap: 2px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px;
}

.tab-btn {
  background: transparent;
  color: var(--text-muted);
  border: none;
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
}

.tab-btn:hover { background: var(--surface2); color: var(--text); opacity: 1; }
.tab-btn.active { background: var(--surface2); color: var(--text); opacity: 1; }

/* File picker */
.file-picker {
  max-width: 640px;
  margin: 80px auto;
  padding: 40px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-align: center;
}

.file-picker h2 { font-size: 22px; margin-bottom: 8px; }
.file-picker p { color: var(--text-muted); margin-bottom: 24px; }
.browser-note { font-size: 12px; color: var(--yellow) !important; margin-bottom: 16px !important; }

.path-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin: 24px 0;
  text-align: left;
}

.path-box label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.path-row { display: flex; align-items: center; gap: 8px; }

.path-row code {
  flex: 1;
  font-family: "Cascadia Code", "Fira Code", monospace;
  font-size: 12px;
  color: var(--accent);
  word-break: break-all;
}

.path-notes {
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Buttons */
button {
  cursor: pointer;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: opacity 0.15s;
}

button:hover { opacity: 0.85; }
button:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
}

.btn-secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 8px 14px;
  font-size: 13px;
}

.link-btn {
  background: none;
  border: none;
  padding: 0;
  font-size: 12px;
  color: var(--text-muted);
  text-align: left;
  border-radius: 0;
}

.link-btn:hover { opacity: 1; color: var(--accent); text-decoration: underline; }

.btn-icon {
  background: var(--surface2);
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 6px 10px;
  font-size: 12px;
}

/* Controls */
.controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.controls select {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 13px;
  flex: 1;
  min-width: 200px;
  max-width: 480px;
}

.min-runs-control {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 13px;
}

.min-runs-control input {
  width: 56px;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 13px;
  text-align: center;
}

.min-runs-control select {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 13px;
}

/* Section */
.section { margin-bottom: 36px; }
.section-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 14px;
}

/* Charts */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 32px;
}

@media (max-width: 700px) { .charts-grid { grid-template-columns: 1fr; } }

.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}

.chart-card h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.chart-wrap { position: relative; height: 220px; }

/* Table */
.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: auto;
}

table { width: 100%; border-collapse: collapse; }

thead th {
  background: var(--surface2);
  padding: 10px 14px;
  text-align: right;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  white-space: nowrap;
}

thead th:first-child { text-align: left; }

tbody tr { border-top: 1px solid var(--border); }
tbody tr:last-child td { border-bottom: none; }

tbody td {
  padding: 9px 14px;
  text-align: right;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

tbody td:first-child { text-align: left; color: var(--text-muted); font-size: 12px; }

.delta-pos { color: var(--green); font-size: 12px; }
.delta-neg { color: var(--red); font-size: 12px; }
.delta-nil { color: var(--text-muted); font-size: 12px; }

.row-current td { background: rgba(108, 142, 255, 0.06); }

/* Autocomplete */
.autocomplete { position: relative; flex: 1; min-width: 200px; max-width: 480px; }

.autocomplete input {
  width: 100%;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 13px;
}

.autocomplete input:focus {
  outline: none;
  border-color: var(--accent-dim);
}

.autocomplete-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  list-style: none;
  max-height: 280px;
  overflow-y: auto;
  z-index: 100;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

.autocomplete-dropdown li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  cursor: pointer;
  gap: 12px;
}

.autocomplete-dropdown li:hover,
.autocomplete-dropdown li.active {
  background: var(--surface2);
}

.autocomplete-dropdown .task-name {
  font-size: 12px;
  font-family: "Cascadia Code", "Fira Code", monospace;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.autocomplete-dropdown .task-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.autocomplete-dropdown .task-creator {
  font-size: 11px;
  color: var(--accent-dim);
  white-space: nowrap;
}

.autocomplete-dropdown .task-runs {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* Overview */
.overview-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

@media (max-width: 600px) { .overview-cards { grid-template-columns: 1fr; } }

.overview-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-radius: 10px;
  padding: 20px 24px;
  text-align: center;
}

.card-improving  { border-left-color: var(--green); }
.card-plateau    { border-left-color: var(--yellow); }
.card-regressing { border-left-color: var(--red); }

.card-count { font-size: 36px; font-weight: 700; line-height: 1; margin-bottom: 4px; }
.card-improving  .card-count { color: var(--green); }
.card-plateau    .card-count { color: var(--yellow); }
.card-regressing .card-count { color: var(--red); }

.card-label { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 4px; }
.card-pct   { font-size: 12px; color: var(--text-muted); }

.status-badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.status-improving  { background: rgba(74,222,128,0.12);  color: var(--green); }
.status-plateau    { background: rgba(251,191,36,0.12);   color: var(--yellow); }
.status-regressing { background: rgba(248,113,113,0.12);  color: var(--red); }

.sortable-th { cursor: pointer; user-select: none; }
.sortable-th:hover { color: var(--text); }
.sort-arrow { color: var(--accent); }

.overview-progress {
  width: 280px; height: 6px;
  background: var(--surface2);
  border-radius: 3px;
  margin: 12px auto 6px;
  overflow: hidden;
}
.overview-progress-bar { height: 100%; background: var(--accent); border-radius: 3px; transition: width 0.2s ease; }

/* Loading / error */
.status-message {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-muted);
}

.error-message {
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.3);
  border-radius: 8px;
  padding: 14px 18px;
  color: var(--red);
  margin-bottom: 20px;
}

/* Top notice banner */
.top-notice {
  position: relative;
  border-bottom: 1px solid var(--border);
  padding: 11px 48px 11px 0;
}

.notice-improving { background: rgba(74,222,128,0.08); }
.notice-declining { background: rgba(248,113,113,0.08); }
.notice-plateau   { background: rgba(251,191,36,0.08); }

.notice-content {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  font-size: 13px;
}

.notice-icon {
  font-size: 15px;
  font-weight: 700;
  flex-shrink: 0;
}

.notice-improving .notice-icon { color: var(--green); }
.notice-declining .notice-icon { color: var(--red); }
.notice-plateau   .notice-icon { color: var(--yellow); }

.notice-improving .notice-body { color: var(--green); }
.notice-declining .notice-body { color: var(--red); }
.notice-plateau   .notice-body { color: var(--yellow); }

.notice-meta { color: var(--text-muted); font-size: 12px; margin-left: 4px; }

.notice-dismiss {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: 18px;
  line-height: 1;
  padding: 4px 8px;
  color: var(--text-muted);
  border-radius: 4px;
}
.notice-dismiss:hover { color: var(--text); opacity: 1; }

/* Playlist sub-tabs */
.playlist-tabs {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.playlist-tab-btn {
  background: var(--surface);
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
}

.playlist-tab-btn:hover { background: var(--surface2); color: var(--text); opacity: 1; }
.playlist-tab-btn.active { background: var(--surface2); color: var(--text); border-color: var(--accent-dim); opacity: 1; }