/* GHK Lab School assessment app — shared styles (mobile-first). */
:root {
  --bg: #f4f6fb;
  --bg-tint: #eaf1fb;
  --card: #ffffff;
  --ink: #1b2237;
  --ink-soft: #384158;
  --muted: #6b7691;
  --line: #e3e8f0;
  --line-strong: #cfd6e4;

  --brand: #2f6fb5;
  --brand-strong: #1f4f88;
  --brand-ink: #ffffff;
  --brand-soft: #e8f0fb;

  --accent: #f0f6ff;
  --warm: #f7b955;      /* friendly amber for highlights */
  --warm-soft: #fdf1dc;
  --leaf: #3aa675;      /* success / positive change */
  --leaf-soft: #e4f5ec;
  --danger: #c53030;
  --danger-soft: #fdecec;
  --ok: #067647;

  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 2px rgba(20, 30, 60, 0.06);
  --shadow: 0 4px 14px rgba(20, 30, 60, 0.07), 0 1px 2px rgba(20, 30, 60, 0.04);
  --shadow-lg: 0 12px 32px rgba(20, 30, 60, 0.12);

  --font: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Inter", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font: 16px/1.5 var(--font);
  background:
    radial-gradient(1200px 500px at 10% -10%, #e6efff 0%, transparent 60%),
    radial-gradient(900px 400px at 100% 0%, #fdf1dc 0%, transparent 55%),
    var(--bg);
  background-attachment: fixed;
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
}
a { color: var(--brand-strong); text-decoration: none; font-weight: 600; }
a:hover { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; }

/* top bar */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: linear-gradient(135deg, #1f4f88 0%, #2f6fb5 55%, #3d86cf 100%);
  color: var(--brand-ink);
  display: flex; align-items: center; gap: 4px;
  padding: 8px 14px; overflow-x: auto; white-space: nowrap;
  box-shadow: 0 6px 18px rgba(31, 79, 136, 0.22);
}
.topbar .brand {
  font-weight: 800; margin-right: 10px; font-size: 15.5px;
  letter-spacing: 0.2px;
  display: inline-flex; align-items: center; gap: 8px;
}
.topbar .brand::before {
  content: ""; width: 30px; height: 30px; border-radius: 50%;
  background: #fff url('/favicon.png') center/cover no-repeat;
  box-shadow: 0 2px 6px rgba(0,0,0,0.18), 0 0 0 2px rgba(255,255,255,0.55);
  flex: 0 0 auto;
}
.topbar a.nav {
  color: #e2ecf7; padding: 8px 12px; border-radius: 10px; font-size: 14px; min-height: 40px;
  font-weight: 600;
  display: inline-flex; align-items: center;
  transition: background 120ms ease, color 120ms ease;
}
.topbar a.nav:hover { background: rgba(255,255,255,0.14); color: #fff; text-decoration: none; }
.topbar a.nav.active {
  background: #fff; color: var(--brand-strong);
  box-shadow: 0 2px 6px rgba(0,0,0,0.14);
}
.topbar .spacer { flex: 1; }
/* Signed-in user: a status pill, deliberately unlike the nav links beside it. */
.topbar .who {
  font-size: 12.5px; font-weight: 700; color: #fff;
  background: rgba(0, 0, 0, 0.22); border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px; padding: 6px 14px; margin-right: 8px; white-space: nowrap;
}
.topbar .who .who-label { font-weight: 400; opacity: 0.78; }
.topbar button.linky {
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.4); color: #fff;
  border-radius: 10px; padding: 7px 12px; font-size: 13px; font-weight: 600;
  cursor: pointer; min-height: 36px; transition: background 120ms ease;
}
.topbar button.linky:hover { background: rgba(255,255,255,0.2); }

.wrap { max-width: 1200px; margin: 0 auto; padding: 20px 16px 28px; }
.wrap.wide { max-width: none; padding-left: 24px; padding-right: 24px; }

h1 { font-size: 26px; margin: 6px 0 16px; letter-spacing: -0.01em; font-weight: 800; }
h2 { font-size: 18px; margin: 20px 0 10px; font-weight: 700; letter-spacing: -0.005em; }
.sub { color: var(--muted); font-size: 13.5px; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px; margin-bottom: 16px;
  transition: box-shadow 160ms ease, transform 160ms ease;
}
.card:hover { box-shadow: var(--shadow-lg); }
.cards { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.grow { flex: 1; }

/* any element, not just <label> — a span.fld was rendering inline and jamming into its value */
.fld { display: block; font-size: 12.5px; color: var(--muted); margin-bottom: 4px; font-weight: 700; letter-spacing: 0.03em; text-transform: uppercase; }
select, input[type="text"], input[type="date"], input[type="password"], input[type="number"], textarea {
  font: inherit; padding: 10px 14px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: #fff; color: var(--ink); min-height: 44px; max-width: 100%;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}
select:focus, input:focus, textarea:focus {
  outline: none; border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(47, 111, 181, 0.15);
}
textarea { min-height: 90px; width: 100%; }
button.btn {
  font: inherit; font-weight: 700; cursor: pointer; min-height: 44px;
  background: linear-gradient(180deg, #3a83cf 0%, var(--brand) 100%);
  color: #fff; border: 0; border-radius: var(--radius-sm); padding: 10px 20px;
  box-shadow: 0 2px 6px rgba(47, 111, 181, 0.35), inset 0 -2px 0 rgba(0,0,0,0.08);
  transition: transform 80ms ease, box-shadow 120ms ease, filter 120ms ease;
  letter-spacing: 0.01em;
}
button.btn:hover { filter: brightness(1.05); box-shadow: 0 4px 12px rgba(47, 111, 181, 0.4); }
button.btn:active { transform: translateY(1px); }
button.btn.secondary {
  background: #fff; color: var(--brand-strong); border: 1.5px solid var(--brand);
  box-shadow: 0 1px 2px rgba(47, 111, 181, 0.12);
}
button.btn.secondary:hover { background: var(--brand-soft); }
button.btn.danger { background: linear-gradient(180deg, #d94040 0%, var(--danger) 100%); box-shadow: 0 2px 6px rgba(197, 48, 48, 0.35); }
button.btn:disabled { opacity: 0.5; cursor: default; filter: grayscale(0.2); }
button.icon {
  font: inherit; cursor: pointer; background: #fff; border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm); min-width: 44px; min-height: 44px; font-size: 18px;
  color: var(--ink-soft); transition: background 100ms ease, border-color 100ms ease;
}
button.icon:hover { background: var(--brand-soft); border-color: var(--brand); color: var(--brand-strong); }
button.icon:active { background: var(--accent); }

table.tbl { border-collapse: separate; border-spacing: 0; width: 100%; background: var(--card); font-size: 14.5px; border-radius: var(--radius-sm); overflow: hidden; }
.tbl th, .tbl td { border-bottom: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: middle; }
.tbl th {
  background: linear-gradient(180deg, #f5f8fd, #eaf0f9);
  font-weight: 700;
  color: var(--ink-soft); font-size: 13px; letter-spacing: 0.02em; text-transform: uppercase;
  border-bottom: 1px solid var(--line-strong);
}
.tbl tr:nth-child(even) td { background: #fafbfd; }
.tbl tr:hover td { background: var(--brand-soft); }
.tbl tr:last-child td { border-bottom: 0; }

.chip {
  display: inline-block; border-radius: 999px; padding: 3px 10px; font-size: 12.5px; font-weight: 700;
  border: 1px solid rgba(0,0,0,0.08); box-shadow: inset 0 -1px 0 rgba(0,0,0,0.04);
}
.pill {
  display: inline-block; background: var(--brand-soft); color: var(--brand-strong);
  border-radius: 999px; padding: 3px 12px; font-size: 12.5px; font-weight: 700;
}

.muted { color: var(--muted); }
.err { color: var(--danger); font-weight: 700; }
.okc { color: var(--ok); font-weight: 700; }

/* page-level failure banner — a broken request must never look like an empty page */
.errbar {
  position: sticky; top: 0; z-index: 100;
  background: linear-gradient(180deg, #d94040 0%, var(--danger) 100%); color: #fff;
  padding: 12px 16px; font-size: 14.5px; font-weight: 700;
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
  box-shadow: 0 4px 14px rgba(197, 48, 48, 0.25);
}
.errbar button {
  font: inherit; font-size: 13px; font-weight: 700; cursor: pointer; min-height: 34px;
  background: #fff; color: var(--danger); border: 0; border-radius: 8px; padding: 6px 14px;
}
.errbar button.ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.6); }

/* toasts */
#toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%);
  background: #1b2237; color: #fff; padding: 12px 20px; border-radius: 12px;
  font-size: 14px; font-weight: 600; z-index: 300;
  box-shadow: 0 12px 28px rgba(0,0,0,0.32);
  max-width: 92vw;
}
#toast.err { background: var(--danger); }

/* modal */
.modal-back {
  position: fixed; inset: 0; background: rgba(20,30,60,0.5); backdrop-filter: blur(4px);
  z-index: 200;
  display: flex; align-items: center; justify-content: center; padding: 14px;
  animation: fadeIn 140ms ease;
}
.modal {
  background: #fff; border-radius: var(--radius-lg); max-width: 640px; width: 100%;
  max-height: 86vh; overflow: auto; padding: 22px;
  box-shadow: var(--shadow-lg);
  animation: pop 160ms ease;
}
.modal h3 { margin: 0 0 12px; font-size: 18px; font-weight: 800; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes pop { from { opacity: 0; transform: translateY(6px) scale(0.98); } to { opacity: 1; transform: none; } }

/* entry grid */
.domain-sec { margin-bottom: 12px; }
.domain-sec summary {
  cursor: pointer; font-weight: 800; font-size: 15px; padding: 12px 14px;
  background: linear-gradient(180deg, var(--brand-soft), var(--accent));
  border: 1px solid var(--line); border-radius: var(--radius-sm); user-select: none;
  color: var(--brand-strong);
  transition: background 120ms ease;
}
.domain-sec summary:hover { background: linear-gradient(180deg, #dce9fa, var(--brand-soft)); }
.skill-row {
  display: grid; grid-template-columns: minmax(130px, 1.4fr) 56px minmax(178px, auto) 44px;
  gap: 8px; align-items: center; padding: 10px 8px; border-bottom: 1px solid var(--line);
}
.skill-row:last-child { border-bottom: 0; }
.skill-name { font-size: 14px; }
.skill-name .code { font-weight: 800; color: var(--ink); }
.skill-name .nm { color: var(--muted); font-size: 12.5px; display: block; margin-top: 1px; }
.skill-name .edited { color: #98a2b3; font-size: 11px; display: block; }
.prev { text-align: center; color: var(--muted); font-size: 13px; }
.prev b { color: var(--ink); }
.stepper { display: flex; gap: 4px; align-items: center; justify-content: flex-start; }
.stepper .val {
  min-width: 62px; min-height: 44px; text-align: center; font-weight: 800; font-size: 16px;
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: #fff; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background 100ms ease, border-color 100ms ease, transform 80ms ease;
}
.stepper .val:hover { border-color: var(--brand); background: var(--brand-soft); }
.stepper .val.blank { color: #98a2b3; font-weight: 500; }
.stepper .val.changed {
  border-color: var(--brand); background: var(--brand-soft); color: var(--brand-strong);
  box-shadow: inset 0 0 0 1px var(--brand);
}
/* "not taught" reads as crossed out, so it can never be mistaken for a blank cell */
.stepper .val.nt {
  color: #475467; background: #dde1e8; border-color: #b6bcc7;
  text-decoration: line-through; font-size: 13px; font-weight: 700; letter-spacing: 0.02em;
}
button.icon.on { background: #dde1e8; border-color: #98a2b3; font-weight: 800; color: var(--ink); }
.savebar {
  position: sticky; bottom: 0; z-index: 60;
  background: rgba(255,255,255,0.96); backdrop-filter: blur(10px);
  border-top: 2px solid var(--brand); padding: 12px 16px;
  display: flex; gap: 12px; align-items: center;
  box-shadow: 0 -4px 16px rgba(20, 30, 60, 0.08);
}
.quickpick { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; }
.quickpick button {
  min-height: 44px; font-weight: 700; font-size: 15px;
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: #fff; cursor: pointer;
  transition: background 100ms ease, border-color 100ms ease;
}
.quickpick button:hover { background: var(--brand-soft); border-color: var(--brand); }
.quickpick button.blankb { grid-column: span 3; color: var(--muted); }

.bench-level { margin: 8px 0; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fbfcfe; }
.bench-level b { display: inline-block; min-width: 22px; color: var(--brand-strong); }
.attr { font-size: 11.5px; color: var(--muted); margin-top: 12px; }

/* heatmap */
.heatwrap {
  overflow: auto; max-height: 76vh;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: #fff; box-shadow: var(--shadow-sm);
}
table.heat { border-collapse: collapse; font-size: 12px; }
.heat th, .heat td { border: 1px solid #dde3ec; padding: 4px 6px; text-align: center; min-width: 34px; }
.heat thead th {
  position: sticky; top: 0;
  background: linear-gradient(180deg, #f5f8fd, #eaf0f9);
  z-index: 6; font-weight: 700; color: var(--ink-soft);
}
.heat td.name, .heat th.name {
  position: sticky; left: 0; background: #f5f8fd; text-align: left; z-index: 5;
  min-width: 150px; max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  font-weight: 600;
}
.heat thead th.name { z-index: 7; }
/* The two "no score" cells must be told apart at a glance, so they share nothing:
   not assessed = pale diagonal hatching with a faint dot;
   not taught   = solid slate with a bold ✕, the same "crossed out" look as the entry grid. */
.heat td.blankcell { background: repeating-linear-gradient(45deg, #f2f4f7, #f2f4f7 4px, #e9ecf1 4px, #e9ecf1 8px); color: #b6bcc7; }
.heat td.ntcell { background: #c8cdd6; color: #3b4453; font-weight: 700; }
/* An opted-out child stays on the sheet — dimmed, and labelled, never silently dropped. */
.heat tr.optedout td { opacity: 0.55; }
.heat tr.optedout td.name { opacity: 1; font-style: italic; }
.heat td.name .optout {
  display: inline-block; margin-left: 6px; padding: 0 8px; border-radius: 999px;
  background: #eaecf0; color: #475467; font-size: 10.5px; font-weight: 700; font-style: normal;
  border: 1px solid #d0d5dd; vertical-align: middle;
}
.legend .box.hatch { background: repeating-linear-gradient(45deg, #f2f4f7, #f2f4f7 3px, #e9ecf1 3px, #e9ecf1 6px); }
.legend .box.nt {
  background: #c8cdd6; color: #3b4453; font-size: 11px; font-weight: 800; line-height: 14px;
  text-align: center;
}

/* a state worth reading before anything else on the page */
.banner {
  border: 1px solid var(--line-strong); border-left: 4px solid var(--warm);
  background: linear-gradient(90deg, var(--warm-soft), #fff 60%);
  border-radius: var(--radius-sm); padding: 12px 14px; margin-bottom: 14px; font-size: 14px;
}
.banner b { display: block; margin-bottom: 3px; color: var(--ink); font-weight: 800; }

.legend { display: flex; gap: 10px; flex-wrap: wrap; font-size: 12.5px; margin: 10px 0; align-items: center; }
.legend .sw { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-soft); font-weight: 600; }
.legend .box { width: 18px; height: 18px; border-radius: 5px; border: 1px solid rgba(0,0,0,0.12); display: inline-block; box-shadow: inset 0 -1px 0 rgba(0,0,0,0.05); }

/* login */
.login-wrap { max-width: 420px; margin: 8vh auto; padding: 16px; }
.login-wrap .card {
  padding: 30px 28px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(47, 111, 181, 0.12);
}
.login-wrap h1 {
  text-align: center; margin: 0 0 4px; font-size: 28px;
  background: linear-gradient(135deg, var(--brand-strong), var(--brand));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.login-wrap .card::before {
  content: ""; display: block; width: 88px; height: 88px; margin: 0 auto 14px;
  border-radius: 50%;
  background: #fff url('/favicon.png') center/cover no-repeat;
  box-shadow: 0 6px 20px rgba(20, 30, 60, 0.14), 0 0 0 3px rgba(47, 111, 181, 0.12);
}
.login-wrap form p { margin: 14px 0; }
.login-wrap .btn { margin-top: 6px; }

@media (max-width: 640px) {
  .wrap { padding: 14px 12px 20px; }
  h1 { font-size: 22px; }
  .skill-row { grid-template-columns: 1fr 44px; grid-template-areas: "name info" "stepper stepper"; }
  .skill-row .skill-name { grid-area: name; }
  .skill-row .prev { display: none; }
  .skill-row .stepper { grid-area: stepper; }
  .skill-row .info { grid-area: info; }
  /* narrow screens: the pill shape carries the meaning, so drop the words */
  .topbar .who .who-label { display: none; }
}
@media print {
  .topbar, .savebar, .noprint { display: none !important; }
  body { background: #fff; }
  .card { box-shadow: none; border: none; }
}