/* ---- tokens ---------------------------------------------------------- */
:root {
  color-scheme: light;
  --plane:          #f9f9f7;
  --surface:        #fcfcfb;
  --text-primary:   #0b0b0b;
  --text-secondary: #52514e;
  --muted:          #898781;
  --grid:           #e1e0d9;
  --axis:           #c3c2b7;
  --border:         rgba(11,11,11,0.10);
  --series-1:       #2a78d6;
  --series-2:       #eb6834;
  --series-1-wash:  rgba(42,120,214,0.10);
  --good:           #0ca30c;
  --warning:        #fab219;
  --critical:       #d03b3b;
  --shadow:         0 1px 2px rgba(11,11,11,0.05);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --plane:          #0d0d0d;
    --surface:        #1a1a19;
    --text-primary:   #ffffff;
    --text-secondary: #c3c2b7;
    --muted:          #898781;
    --grid:           #2c2c2a;
    --axis:           #383835;
    --border:         rgba(255,255,255,0.10);
    --series-1:       #3987e5;
    --series-2:       #d95926;
    --series-1-wash:  rgba(57,135,229,0.14);
    --shadow:         none;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --plane:          #0d0d0d;
  --surface:        #1a1a19;
  --text-primary:   #ffffff;
  --text-secondary: #c3c2b7;
  --muted:          #898781;
  --grid:           #2c2c2a;
  --axis:           #383835;
  --border:         rgba(255,255,255,0.10);
  --series-1:       #3987e5;
  --series-2:       #d95926;
  --series-1-wash:  rgba(57,135,229,0.14);
  --shadow:         none;
}

/* ---- base ------------------------------------------------------------ */
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  background: var(--plane);
  color: var(--text-primary);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
h1, h2 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: 1.05rem; }
h2 { font-size: 0.95rem; }
p  { margin: 0; }
.muted { color: var(--muted); font-size: 0.8rem; }

main {
  max-width: 1240px;
  margin: 0 auto;
  padding: 20px 24px 48px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* ---- top bar --------------------------------------------------------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.topbar-actions { display: flex; gap: 8px; align-items: center; }
.file-btn, .ghost-btn, .seg-btn {
  font: inherit; font-size: 0.82rem;
  padding: 6px 12px; border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--surface); color: var(--text-secondary);
  cursor: pointer;
}
.file-btn:hover, .ghost-btn:hover, .seg-btn:hover { color: var(--text-primary); border-color: var(--axis); }
.seg { display: flex; gap: 4px; }
.seg-btn.is-on {
  background: var(--series-1-wash);
  border-color: var(--series-1);
  color: var(--text-primary);
}
.search {
  font: inherit; font-size: 0.82rem;
  padding: 6px 10px; min-width: 220px;
  border-radius: 7px; border: 1px solid var(--border);
  background: var(--plane); color: var(--text-primary);
}

/* ---- drop hint ------------------------------------------------------- */
.drop-hint {
  position: fixed; inset: 0; z-index: 50;
  display: none; align-items: center; justify-content: center;
  background: var(--series-1-wash);
  border: 3px dashed var(--series-1);
  color: var(--text-primary); font-weight: 600;
  pointer-events: none;
}
body.dragging .drop-hint { display: flex; }

/* ---- panels ---------------------------------------------------------- */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px 20px;
  box-shadow: var(--shadow);
}
.panel-head {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 16px; margin-bottom: 14px; flex-wrap: wrap;
}
.stack { display: flex; flex-direction: column; gap: 20px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }

/* ---- hero + stats ---------------------------------------------------- */
.hero-row { display: grid; grid-template-columns: minmax(260px, 1fr) 2.2fr; gap: 20px; }
@media (max-width: 900px) { .hero-row { grid-template-columns: 1fr; } }
.hero {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; justify-content: center;
}
.hero .label { font-size: 0.8rem; color: var(--text-secondary); }
.hero-value { font-size: 3rem; font-weight: 600; letter-spacing: -0.03em; line-height: 1.1; margin-top: 4px; }
.hero-sub { margin-top: 6px; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 1100px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
.stat {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 12px 14px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 2px;
}
.stat .k { font-size: 0.74rem; color: var(--muted); }
.stat .v { font-size: 1.35rem; font-weight: 600; letter-spacing: -0.02em; }
.stat .s { font-size: 0.72rem; color: var(--text-secondary); }

/* ---- charts ---------------------------------------------------------- */
.chart { width: 100%; overflow-x: auto; }
.chart svg { display: block; width: 100%; height: auto; }
.chart .mark { transition: opacity 120ms ease; }
.chart .mark:hover { opacity: 0.82; cursor: default; }
.note { font-size: 0.78rem; color: var(--text-secondary); margin-top: 10px; }
.legend { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 10px; font-size: 0.78rem; color: var(--text-secondary); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.swatch { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.key-line {
  width: 16px; height: 0; display: inline-block;
  border-top: 2px solid var(--text-primary); opacity: 0.85;
}
.key-line.dashed { border-top-style: dashed; }

/* ---- tables ---------------------------------------------------------- */
.table-wrap { overflow-x: auto; max-height: 520px; overflow-y: auto; border-radius: 8px; }
table { border-collapse: collapse; width: 100%; font-size: 0.82rem; }
thead th {
  position: sticky; top: 0; z-index: 1;
  background: var(--surface);
  text-align: left; font-weight: 600; color: var(--text-secondary);
  padding: 8px 10px; border-bottom: 1px solid var(--axis);
  white-space: nowrap; cursor: pointer; user-select: none;
}
thead th.num, tbody td.num {
  text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap;
}
thead th[aria-sort]:after { content: " ↑"; color: var(--series-1); }
thead th[aria-sort="descending"]:after { content: " ↓"; }
tbody td { padding: 7px 10px; border-bottom: 1px solid var(--grid); }
tbody tr:hover { background: var(--series-1-wash); }
.code { color: var(--muted); font-size: 0.76rem; }
.pill { display: inline-block; padding: 1px 7px; border-radius: 99px; font-size: 0.72rem; border: 1px solid var(--border); }
.pill.warn { color: var(--text-primary); border-color: var(--warning); background: rgba(250,178,25,0.16); }
.pill.crit { color: var(--text-primary); border-color: var(--critical); background: rgba(208,59,59,0.14); }

/* ---- tooltip --------------------------------------------------------- */
.tooltip {
  position: fixed; z-index: 100; pointer-events: none;
  background: var(--surface); color: var(--text-primary);
  border: 1px solid var(--axis); border-radius: 8px;
  padding: 8px 10px; font-size: 0.78rem; line-height: 1.45;
  box-shadow: 0 4px 14px rgba(0,0,0,0.16);
  max-width: 280px;
}
.tooltip b { font-weight: 600; }
.tooltip .t-row { color: var(--text-secondary); }
.tooltip .t-row b { color: var(--text-primary); font-variant-numeric: tabular-nums; }

.foot {
  padding: 20px 0 4px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.01em;
}

/* ---- empty state ------------------------------------------------------ */
.empty { padding: 48px 32px; }
.empty-inner { max-width: 760px; margin: 0 auto; text-align: center; }
.empty h2 { font-size: 1.15rem; margin-bottom: 8px; }
.empty .muted { font-size: 0.88rem; line-height: 1.6; }
.empty b { color: var(--text-primary); }
.file-btn.big { display: inline-block; margin-top: 18px; padding: 9px 20px; font-size: 0.9rem; }
.expected { margin-top: 32px; text-align: left; }
.expected .sub-h { text-align: center; margin-bottom: 12px; }
table.spec { font-size: 0.8rem; }
table.spec th { cursor: default; }
table.spec td:first-child { font-weight: 600; white-space: nowrap; }
table.spec .or { color: var(--muted); font-size: 0.72rem; margin-left: 6px; }

/* ---- load status ------------------------------------------------------ */
.status {
  border: 1px solid var(--border); border-left-width: 3px;
  border-radius: 10px; padding: 12px 16px; background: var(--surface);
}
.status-head { display: flex; gap: 10px; align-items: baseline; font-size: 0.88rem; font-weight: 600; }
.status-icon { font-size: 0.9rem; }
.status-list { margin: 8px 0 0; padding-left: 26px; display: flex; flex-direction: column; gap: 5px; }
.status-list li { font-size: 0.8rem; color: var(--text-secondary); }
.status-ok    { border-left-color: var(--good); }
.status-ok    .status-icon { color: var(--good); }
.status-warn  { border-left-color: var(--warning); }
.status-warn  .status-icon { color: var(--warning); }
.status-error { border-left-color: var(--critical); }
.status-error .status-icon { color: var(--critical); }
.status-info  { border-left-color: var(--axis); }

button[disabled] { opacity: 0.45; cursor: not-allowed; }

/* ---- filter row ------------------------------------------------------- */
.filter-row { display: flex; gap: 24px; flex-wrap: wrap; align-items: center; }
.filter { display: flex; gap: 8px; align-items: center; }
.filter-label { font-size: 0.78rem; color: var(--muted); }

/* ---- top 5 blocks ----------------------------------------------------- */
.top5-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 900px) { .top5-grid { grid-template-columns: 1fr; } }
.sub-h { margin: 0 0 10px; font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); }
.rank-list { display: flex; flex-direction: column; gap: 10px; }
.rank-row { display: grid; grid-template-columns: 18px 1fr auto; gap: 10px; align-items: start; }
.rank-n { font-size: 0.78rem; color: var(--muted); font-variant-numeric: tabular-nums; line-height: 1.35; }
.rank-mid { min-width: 0; }
.rank-label {
  font-size: 0.82rem; line-height: 1.35; color: var(--text-primary);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.rank-sub { font-size: 0.72rem; color: var(--muted); margin-top: 1px; }
.rank-track { height: 6px; border-radius: 3px; background: var(--grid); margin-top: 5px; overflow: hidden; }
.rank-fill { height: 100%; border-radius: 3px; background: var(--series-1); }
.rank-val {
  font-size: 0.82rem; font-weight: 600; white-space: nowrap;
  font-variant-numeric: tabular-nums; line-height: 1.35;
}

/* ---- view tabs -------------------------------------------------------- */
.view-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); }
.view-tab {
  font: inherit; font-size: 0.86rem; font-weight: 600;
  padding: 8px 16px; border: none; background: none; cursor: pointer;
  color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.view-tab:hover { color: var(--text-primary); }
.view-tab.is-on { color: var(--text-primary); border-bottom-color: var(--series-1); }

/* ---- compare picker ---------------------------------------------------- */
.cmp-picker { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 800px) { .cmp-picker { grid-template-columns: 1fr; } }
.cmp-side { display: flex; flex-direction: column; gap: 8px; }
.side-label { font-size: 0.74rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.side-a { color: var(--series-1); }
.side-b { color: var(--series-2); }
.input {
  font: inherit; font-size: 0.84rem; padding: 7px 10px;
  border-radius: 7px; border: 1px solid var(--border);
  background: var(--plane); color: var(--text-primary);
}
.cmp-custom { display: flex; gap: 10px; flex-wrap: wrap; }
.cmp-custom label { font-size: 0.76rem; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.cmp-shortcuts { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 2px; }
.cmp-headline { margin-top: 18px; font-size: 1.05rem; font-weight: 600; }
.cmp-headline .vs { color: var(--muted); font-weight: 400; margin: 0 6px; }
.warn-note { color: var(--text-primary); }
.warn-note::before { content: "! "; color: var(--warning); font-weight: 700; }

/* ---- delta cards ------------------------------------------------------- */
.delta-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
@media (max-width: 1100px) { .delta-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 700px)  { .delta-grid { grid-template-columns: repeat(2, 1fr); } }
.delta-card {
  border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px;
  display: flex; flex-direction: column; gap: 2px;
}
.delta-card .k { font-size: 0.74rem; color: var(--muted); }
.delta-card .v { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.02em; }
.delta-card .s { font-size: 0.72rem; color: var(--muted); }
.delta { font-size: 0.78rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.delta-good { color: var(--good); }
.delta-bad { color: var(--critical); }
.delta-flat { color: var(--muted); }

/* ---- movers ------------------------------------------------------------ */
.sub-h.up { color: var(--good); }
.sub-h.down { color: var(--critical); }
td.num.up { color: var(--good); }
td.num.down { color: var(--critical); }
.pill.new { border-color: var(--good); background: rgba(12,163,12,0.14); color: var(--text-primary); margin-left: 6px; }
.tooltip .t-dim { color: var(--muted); }
.tooltip .swatch { margin-right: 4px; }