:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #1c2430;
  --text-2: #5b6676;
  --line: #e1e5ea;
  --accent: #1f5f8b;
  --accent-text: #ffffff;
  --accent-soft: #e4eef6;
  --danger: #b42318;
  --ok: #157f3b;
  --warn: #a15c00;
  --star: #e8a317;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161c;
    --panel: #1a2029;
    --text: #e7ebf0;
    --text-2: #9aa5b4;
    --line: #2b3440;
    --accent: #5aa7dc;
    --accent-text: #0b1520;
    --accent-soft: #1d3346;
    --danger: #f97066;
    --ok: #47cd89;
    --warn: #f0a33a;
    --star: #f5c04a;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", sans-serif;
  -webkit-text-size-adjust: 100%;
}
a { color: var(--accent); }
h1 { font-size: 1.35rem; margin: 0 0 .25rem; }
h2 { font-size: 1.1rem; margin: 1.25rem 0 .5rem; }
h3 { font-size: 1rem; margin: 1rem 0 .4rem; }
[hidden] { display: none !important; }

/* ---------- layout */
header#top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 8px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; text-decoration: none; color: var(--text); display: flex; align-items: center; gap: 8px; }
.brand img { width: 24px; height: 24px; }
nav { display: flex; gap: 4px; flex-wrap: wrap; margin-left: auto; }
nav a, nav button {
  padding: 6px 10px; border-radius: 8px; text-decoration: none; color: var(--text-2);
  background: none; border: 0; font: inherit; cursor: pointer;
}
nav a.on { background: var(--accent-soft); color: var(--text); }
main { max-width: 1100px; margin: 0 auto; padding: 16px; }
.pad { padding: 24px; }
.center { text-align: center; }
.muted { color: var(--text-2); }
.small { font-size: .85rem; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
.spacer { flex: 1; }
.stack > * + * { margin-top: 8px; }

.panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px; margin-bottom: 16px;
}
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.card {
  display: block; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; text-decoration: none; color: var(--text); box-shadow: var(--shadow);
}
.card:hover { border-color: var(--accent); }
.card .title { font-weight: 650; }
.card.archived { opacity: .6; }

/* ---------- forms */
label { display: block; font-size: .85rem; color: var(--text-2); margin-bottom: 3px; }
input, select, textarea, button { font: inherit; color: inherit; }
input[type=text], input[type=password], input[type=date], input[type=number], select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg);
  min-height: 38px;
}
input[type=color] { width: 42px; height: 38px; padding: 2px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); }
textarea { min-height: 90px; resize: vertical; }
.field { margin-bottom: 10px; min-width: 0; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 0 12px; }
.check { display: inline-flex; gap: 6px; align-items: center; color: var(--text); font-size: .95rem; margin: 0; }
.check input { width: 18px; height: 18px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 38px; padding: 7px 14px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--line); background: var(--panel); text-decoration: none; color: var(--text);
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.danger { color: var(--danger); }
.btn.small { min-height: 30px; padding: 3px 9px; font-size: .85rem; }
.btn:disabled { opacity: .5; cursor: default; }
.btn.icon { padding: 3px 8px; min-width: 32px; }

/* ---------- tabs */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin: 12px 0 16px; overflow-x: auto; }
.tabs a {
  padding: 8px 14px; text-decoration: none; color: var(--text-2); border-bottom: 2px solid transparent; white-space: nowrap;
}
.tabs a.on { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }

/* ---------- tables */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; }
th, td { padding: 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
th { font-size: .85rem; color: var(--text-2); font-weight: 600; }
table.grid td.sticky, table.grid th.sticky { position: sticky; left: 0; background: var(--panel); z-index: 1; }
td.cell { text-align: center; min-width: 74px; border-radius: 6px; }
td.cell .d { display: block; font-size: .72rem; color: var(--text-2); }
td.cell.has { color: #111; }
td.cell.has .d { color: #333; }

/* ---------- deadline status */
.st { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: .78rem; font-weight: 600; white-space: nowrap; }
.st-met { background: rgba(43,147,72,.16); color: #1f7a39; }
.st-ontrack { background: rgba(58,134,200,.16); color: #1f5f99; }
.st-risk { background: rgba(224,161,0,.2); color: #8a5a00; }
.st-behind, .st-missed { background: rgba(214,69,69,.15); color: #b42318; }
.st-nodata { background: rgba(154,165,180,.2); color: var(--text-2); }
@media (prefers-color-scheme: dark) {
  .st-met { color: #6fdc95; } .st-ontrack { color: #8cc3f2; } .st-risk { color: #f5c75a; }
  .st-behind, .st-missed { color: #ff9b94; }
}
td.cell.st-cell { color: var(--text); font-weight: 600; }
td.cell.st-cell .d { font-weight: 400; }
.sbar { display: flex; height: 10px; border-radius: 6px; overflow: hidden; background: var(--line); margin: 6px 0 4px; }
.sbar span { display: block; min-width: 3px; }
.dl-row { display: block; padding: 10px; border: 1px solid var(--line); border-radius: 8px; margin-bottom: 8px;
  background: var(--bg); color: var(--text); text-decoration: none; }
.dl-row:hover { border-color: var(--accent); }
.dl-row.on { border-color: var(--accent); box-shadow: inset 3px 0 0 var(--accent); }
.dl-layout { display: grid; grid-template-columns: minmax(260px, 340px) 1fr; gap: 16px; align-items: start; }
.dl-layout > * { min-width: 0; }
@media (max-width: 860px) { .dl-layout { grid-template-columns: 1fr; } .dl-layout > :last-child { order: -1; } }

/* ---------- analysis */
.range-bar { margin: 0 0 12px; }
.an-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 16px; }
.an-grid > * { min-width: 0; }
.dist { display: flex; gap: 2px; border-radius: 6px; overflow: hidden; margin-top: 4px; }
.dist span { display: block; min-width: 34px; padding: 4px 6px; font-size: .8rem; color: #1c2430; white-space: nowrap; text-align: center; }
.cmp-layout { display: grid; grid-template-columns: minmax(280px, 1fr) minmax(280px, 1fr); gap: 16px; align-items: center; }
.cmp-layout > * { min-width: 0; }
@media (max-width: 760px) { .cmp-layout { grid-template-columns: 1fr; } .an-grid { grid-template-columns: 1fr; } }

/* ---------- printable reports */
.report { background: #fff; color: #1c2430; max-width: 860px; margin: 0 auto 24px; padding: 28px 32px; border-radius: var(--radius);
  box-shadow: var(--shadow); border: 1px solid var(--line); font-size: 14px; }
.report a { color: inherit; }
.report h1 { font-size: 1.4rem; margin: 2px 0 10px; }
.report h2 { font-size: 1.05rem; margin: 18px 0 6px; border-bottom: 1px solid #d5dbe2; padding-bottom: 3px; }
.report h3 { font-size: .95rem; margin: 10px 0 4px; }
.rep-school { font-size: .8rem; letter-spacing: .04em; text-transform: uppercase; color: #5b6676; }
.rep-meta th, .rep-meta td { padding: 2px 12px 2px 0; border: 0; font-size: .9rem; }
.rep-meta th { color: #5b6676; font-weight: 500; }
.rep-table { width: 100%; border-collapse: collapse; margin: 4px 0; }
.rep-table th, .rep-table td { border: 1px solid #d5dbe2; padding: 5px 7px; font-size: .88rem; color: #1c2430; }
.rep-table th { background: #eef2f6; color: #3b4654; }
.rep-table.compact td { padding: 3px 6px; font-size: .82rem; }
.rep-table.grid-table td.cell { text-align: center; }
.report .st { border: 1px solid rgba(0,0,0,.08); }
.report .st-met { color: #1f7a39; } .report .st-ontrack { color: #1f5f99; } .report .st-risk { color: #8a5a00; }
.report .st-behind, .report .st-missed { color: #b42318; } .report .st-nodata { color: #5b6676; }
.rep-chart-box canvas { width: 100% !important; height: auto !important; display: block; }
.rep-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.rep-cell, .rep-keep { break-inside: avoid; }
.rep-table td:first-child { min-width: 140px; }
.rep-cell-title { font-weight: 600; font-size: .9rem; margin-bottom: 2px; }
.rep-dl { margin: 6px 0 10px; break-inside: avoid; }
.rep-comment { white-space: pre-wrap; border: 1px solid #d5dbe2; border-radius: 6px; padding: 8px 10px; }
.rep-lines div { border-bottom: 1px solid #9aa5b4; height: 26px; }
.rep-sign { display: flex; justify-content: space-between; margin-top: 26px; font-size: .9rem; gap: 12px; flex-wrap: wrap; }
.report .dist span { color: #1c2430; }
@media (max-width: 600px) { .report { padding: 16px 12px; } .rep-grid { grid-template-columns: 1fr; } }
@page { size: A4; margin: 13mm 12mm; }
@media print {
  * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  main { max-width: none; padding: 0; }
  .report { border: 0; box-shadow: none; padding: 0; margin: 0; max-width: none; border-radius: 0; }
  .report.page-break { break-before: page; }
  .rep-table tr, .rep-chart-box { break-inside: avoid; }
  .report h2 { break-after: avoid; }
  #toast { display: none; }
}

/* ---------- value picker */
.picker { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.pick {
  min-width: 38px; min-height: 38px; padding: 4px 8px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--line); background: var(--bg); line-height: 1;
}
.pick[aria-pressed=true] { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 650; }
.pick.sym { border-color: transparent; background: none; font-size: 1.55rem; min-width: 34px; padding: 2px; }
.pick.sym.star { color: var(--star); }
.pick.sym.off { opacity: .28; filter: grayscale(1); }
.pick.sym[aria-pressed=true] { background: none; color: inherit; }
.pick.sym.star[aria-pressed=true] { color: var(--star); }
.pick.clear { min-width: 30px; color: var(--text-2); }
.picker.readonly .pick { cursor: default; }
.entry-row.dirty td:first-child { box-shadow: inset 3px 0 0 var(--warn); }
.entry-row .prev { font-size: .78rem; color: var(--text-2); }
.note-input { margin-top: 6px; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--panel); cursor: pointer; font-size: .88rem;
}
.chip .dot { width: 10px; height: 10px; border-radius: 50%; }
.chip.off { opacity: .45; }

.chart-box { position: relative; height: 340px; }
@media (max-width: 600px) { .chart-box { height: 280px; } }

.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: .78rem; background: var(--accent-soft); }
.badge.ok { background: rgba(21,127,59,.15); color: var(--ok); }
.badge.bad { background: rgba(180,35,24,.12); color: var(--danger); }
.badge.warn { background: rgba(161,92,0,.13); color: var(--warn); }

.list-item { border: 1px solid var(--line); border-radius: 8px; padding: 10px; margin-bottom: 8px; background: var(--bg); }
.sticky-save {
  position: sticky; bottom: 0; background: var(--panel); border-top: 1px solid var(--line);
  padding: 10px 0; margin-top: 12px; display: flex; gap: 8px; align-items: center; justify-content: flex-end;
}

#toast {
  position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 8px;
  opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 50; max-width: 90vw;
}
#toast.show { opacity: 1; }
#toast.err { background: var(--danger); color: #fff; }

.login { max-width: 360px; margin: 8vh auto; }
.langs { display: flex; gap: 6px; justify-content: center; margin-bottom: 12px; }
.langs button { border: 1px solid var(--line); background: var(--panel); border-radius: 8px; padding: 4px 10px; cursor: pointer; }
.langs button.on { border-color: var(--accent); background: var(--accent-soft); }

@media (max-width: 600px) {
  main { padding: 12px; }
  nav a, nav button { padding: 5px 8px; }
  .tabs a { padding: 8px 9px; font-size: .95rem; }
  /* Quick entry: name and note button on one line, the picker on its own full-width line. */
  table.entry-table thead { display: none; }
  table.entry-table tr.entry-row { display: grid; grid-template-columns: 1fr auto; border-bottom: 1px solid var(--line); padding: 6px 0; }
  table.entry-table tr.entry-row td { border: 0; padding: 2px 4px; }
  table.entry-table tr.entry-row td:nth-child(1) { grid-column: 1; grid-row: 1; }
  table.entry-table tr.entry-row td:nth-child(3) { grid-column: 2; grid-row: 1; width: auto !important; }
  table.entry-table tr.entry-row td:nth-child(2) { grid-column: 1 / -1; grid-row: 2; }
  .entry-row.dirty td:first-child { box-shadow: none; }
  .entry-row.dirty { box-shadow: inset 3px 0 0 var(--warn); }
  header#top { padding: 6px 12px; }
  nav { margin-left: 0; width: 100%; }
  th, td { padding: 6px; }
}
@media print {
  header#top, .tabs, .btn, .no-print { display: none !important; }
  body { background: #fff; }
  .panel { border: 0; box-shadow: none; }
}