/* Labroll — in the programuoki.lt design language: drawing-board paper,
   graphite + steel blue, Barlow / Barlow Condensed, square hairline frames
   with corner marks. Tokens copied from programuoki/platform templates/path.templ. */

@font-face { font-family: "Barlow"; font-style: normal; font-weight: 400; font-display: swap; src: url("/static/fonts/barlow-400-latin.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Barlow"; font-style: normal; font-weight: 400; font-display: swap; src: url("/static/fonts/barlow-400-latin-ext.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Barlow Condensed"; font-style: normal; font-weight: 500; font-display: swap; src: url("/static/fonts/barlow-condensed-500-latin.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Barlow Condensed"; font-style: normal; font-weight: 500; font-display: swap; src: url("/static/fonts/barlow-condensed-500-latin-ext.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Barlow Condensed"; font-style: normal; font-weight: 600; font-display: swap; src: url("/static/fonts/barlow-condensed-600-latin.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Barlow Condensed"; font-style: normal; font-weight: 600; font-display: swap; src: url("/static/fonts/barlow-condensed-600-latin-ext.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Barlow Condensed"; font-style: normal; font-weight: 700; font-display: swap; src: url("/static/fonts/barlow-condensed-700-latin.woff2") format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Barlow Condensed"; font-style: normal; font-weight: 700; font-display: swap; src: url("/static/fonts/barlow-condensed-700-latin-ext.woff2") format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }

:root {
  color-scheme: light;
  --bg: #f2f2f3;
  --ink: #1d1f20;
  --field: #ffffff;
  --n300: #d4d4d7;
  --n400: #b7b7ba;
  --n500: #98989b;
  --n700: #5d5d60;
  --n800: #424244;
  --acc: #5980a6;
  --a100: #eef6ff;
  --a200: #d6ebff;
  --a300: #b5d9fd;
  --a500: #749dc4;
  --a600: #597ea3;
  --a700: #416180;
  --a800: #2c455d;
  --a900: #1d2d3d;
  --hair: color-mix(in srgb, var(--ink) 16%, transparent);
  --wash: color-mix(in srgb, var(--ink) 4%, transparent);
  /* language plates, as on the programuoki.lt landing */
  --go: #00758D;
  --kt: #5B3FA8;
  --py: #146B4C;
  --html: #E34F26;
  --js-bg: #F7DF1E;
  --js-ink: #1d1f20;
  --js-border: #84640B;
  /* states */
  --ok: #146B4C;
  --warn: #8A5A00;
  --bad: #B42318;
  --fh: "Barlow Condensed", "Arial Narrow", system-ui, sans-serif;
  --fb: "Barlow", system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}
.dark {
  color-scheme: dark;
  --bg: #16222e;
  --ink: #eef2f6;
  --field: #1b2a38;
  --n300: #3a4c5e;
  --n400: #556b80;
  --n500: #64798d;
  --n700: #bccbd8;
  --n800: #dde6ee;
  --acc: #749dc4;
  --a100: #22364a;
  --a200: #2c455d;
  --a300: #3d5c79;
  --a500: #5a86ae;
  --a600: #8db2d4;
  --a700: #b5d9fd;
  --a800: #cfe4fb;
  --a900: #e7f1ff;
  --go: #22D3EE;
  --kt: #A78BFA;
  --py: #34D399;
  --html: #F08662;
  --js-border: #F7DF1E;
  --ok: #34D399;
  --warn: #F5B84D;
  --bad: #FF8A80;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.5 var(--fb); }
h1, h2 { margin: 0; font-family: var(--fh); text-transform: uppercase; }
h1 { font-weight: 600; font-size: 44px; line-height: .95; letter-spacing: -0.02em; }
h2 { font-weight: 600; font-size: 20px; letter-spacing: .02em; }
a { color: var(--a700); }
a:hover { color: var(--a800); }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.muted { color: var(--n700); }
.small, small { font-size: 13px; }
small { display: block; }
.mono { font-family: var(--mono); font-size: .92em; }
.bad { color: var(--bad) !important; }
.center { text-align: center; }
.grow { flex: 1 1 auto; min-width: 0; }
.ellipsis { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.stack { display: flex; flex-direction: column; gap: 12px; }

/* Condensed uppercase label, the site's "meta" voice */
.label, .side-head, .tbl th, .stat small, .pill, .st, .act-chip, .tabs a, .lecture small, .eyebrow, .step-title h2 {
  font-family: var(--fh); font-weight: 500; letter-spacing: .12em; text-transform: uppercase;
}

/* ---------- drawing-board frame: hairline + corner marks ---------- */
.bp { position: relative; border: 1px solid var(--hair); }
.corner { position: absolute; width: 11px; height: 11px; color: color-mix(in srgb, var(--ink) 55%, transparent); pointer-events: none; }
.corner::before, .corner::after { content: ""; position: absolute; background: currentColor; }
.corner::before { left: 5px; top: 0; width: 1px; height: 100%; }
.corner::after { top: 5px; left: 0; width: 100%; height: 1px; }
.corner-tl { top: -6px; left: -6px; }
.corner-tr { top: -6px; right: -6px; }
.corner-bl { bottom: -6px; left: -6px; }
.corner-br { bottom: -6px; right: -6px; }

.eyebrow { margin: 0; display: flex; align-items: center; gap: 10px; font-size: 13px; letter-spacing: .14em; color: var(--n700); }
.eyebrow::before { content: ""; display: inline-block; width: 26px; border-top: 1px solid var(--acc); }
.stamp {
  display: inline-flex; align-self: flex-start; align-items: center; flex-wrap: wrap; gap: 4px 12px;
  padding: 7px 12px; border: 1px solid var(--n400); font: 400 13px var(--mono);
}
.stamp .cmd { color: var(--n700); }
.stamp .ok { color: var(--a800); }

/* language plate (.go .kt .html …) */
.ext { display: inline-flex; align-items: center; justify-content: center; flex: none; min-width: 46px; height: 30px; padding: 0 6px; border: 1px solid currentColor; font: 600 18px/1 var(--fh); letter-spacing: -0.01em; color: var(--n800); }
.ext-go { color: var(--go); }
.ext-kt { color: var(--kt); }
.ext-py { color: var(--py); }
.ext-html { color: var(--html); font-weight: 700; font-size: 16px; }
.ext-js { color: var(--js-ink); background: var(--js-bg); border-color: var(--js-border); }

/* ---------- layout ---------- */
.app { min-height: 100vh; display: flex; flex-wrap: wrap; align-items: stretch; }
.side { flex: 1 1 260px; max-width: 100%; padding: 22px 18px; display: flex; flex-direction: column; gap: 22px; border-right: 1px solid var(--n300); }
.main { flex: 999 1 560px; min-width: 0; padding: 28px 32px 56px; display: flex; flex-direction: column; gap: 24px; max-width: 1280px; }
@media (max-width: 860px) {
  .main { padding: 18px 16px 28px; }
  .side { order: 2; border-right: 0; border-top: 1px solid var(--n300); }
  h1 { font-size: 34px; }
  .search, .search input { width: 100%; }
}

.logo { display: flex; align-items: center; gap: 10px; padding: 2px 4px; color: var(--ink); text-decoration: none; font: 600 20px var(--fh); letter-spacing: .14em; text-transform: uppercase; }
.logo-mark { width: 32px; height: 32px; display: grid; place-items: center; border: 1px solid var(--a700); color: var(--a700); font: 700 18px var(--fh); letter-spacing: 0; }

.side-nav { display: flex; flex-direction: column; gap: 6px; }
.side-head { padding: 0 4px 4px; font-size: 12px; color: var(--n700); display: flex; align-items: center; gap: 8px; }
.side-head::before { content: ""; width: 18px; border-top: 1px solid var(--acc); }
.side-error { margin: 4px; font-size: 13px; color: var(--warn); }
.subj { display: flex; align-items: center; gap: 10px; min-height: 52px; padding: 7px 10px; border: 1px solid var(--n300); color: var(--ink); text-decoration: none; }
.subj:hover { background: var(--wash); color: var(--ink); }
.subj.is-current { border-color: var(--acc); border-left: 3px solid var(--acc); background: color-mix(in srgb, var(--acc) 13%, transparent); }
.subj-new { border-style: dashed; }
.subj-text { flex: 1 1 auto; min-width: 0; }
.subj-name { display: block; font: 500 17px/1.15 var(--fh); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.subj-meta { display: block; font: 500 12px var(--fh); letter-spacing: .1em; text-transform: uppercase; color: var(--n700); }
.subj-open { font: 600 12px var(--fh); letter-spacing: .1em; text-transform: uppercase; color: var(--a700); white-space: nowrap; }
.subj .ext { min-width: 40px; height: 28px; font-size: 16px; }
.subj .ext-html { font-size: 14px; }
.dot { display: none; }
.side-other { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--n300); padding-top: 10px; }
.side-other a, .linkish { min-height: 40px; display: flex; align-items: center; padding: 0 4px; color: var(--ink); text-decoration: none; background: none; border: 0; cursor: pointer; width: 100%; text-align: left; font: 500 15px var(--fh); letter-spacing: .1em; text-transform: uppercase; }
.side-other a:hover, .linkish:hover { color: var(--a700); }
.side-other a.is-current { color: var(--a700); box-shadow: inset 3px 0 0 var(--acc); padding-left: 10px; }
.side-other form { margin: 0; }

/* ---------- pieces ---------- */
.card { position: relative; border: 1px solid var(--hair); padding: 20px 22px; background: transparent; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 40px; padding: 0 14px; border: 1px solid var(--n400); background: transparent; color: var(--ink); font: 600 14px var(--fh); letter-spacing: .1em; text-transform: uppercase; text-decoration: none; cursor: pointer; white-space: nowrap; }
.btn:hover { background: var(--wash); color: var(--ink); border-color: var(--n500); }
.btn-primary { background: var(--a700); border-color: var(--acc); color: var(--bg); }
.btn-primary:hover { background: var(--a600); color: var(--bg); }
.btn-dark { background: var(--ink); border-color: var(--ink); color: var(--bg); }
.btn-dark:hover { background: var(--n800); color: var(--bg); }
.btn-light { background: var(--bg); border-color: var(--bg); color: var(--ink); width: 100%; }
.btn-xl { min-height: 52px; font-size: 16px; width: 100%; }
.htmx-request .when-idle, .when-busy { display: none; }
.htmx-request .when-busy { display: inline; }

.pill { display: inline-block; font-size: 12px; padding: 2px 9px; border: 1px solid var(--n400); color: var(--n800); }
.pill-violet { border-color: var(--a500); color: var(--a800); background: color-mix(in srgb, var(--a100) 70%, transparent); }
.pill-green { border-color: var(--ok); color: var(--ok); }
.pill-amber { border-color: var(--warn); color: var(--warn); }
.pills { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }

.alert { margin: 0; padding: 10px 14px; border: 1px solid; border-left-width: 3px; font-weight: 400; }
.alert-ok { border-color: var(--ok); color: var(--ok); background: color-mix(in srgb, var(--ok) 8%, transparent); }
.alert-bad { border-color: var(--bad); color: var(--bad); background: color-mix(in srgb, var(--bad) 8%, transparent); }
.alert-warn { border-color: var(--warn); color: var(--ink); background: color-mix(in srgb, var(--warn) 8%, transparent); }

.avatar { width: 34px; height: 34px; flex: none; display: grid; place-items: center; border: 1px solid var(--n400); background: transparent !important; color: var(--n800) !important; font: 600 14px var(--fh); letter-spacing: .04em; }
button.avatar { cursor: pointer; }
.who { display: flex; align-items: center; gap: 10px; }
.who b { display: block; white-space: nowrap; font-weight: 600; }

input:not([type=radio]):not([type=checkbox]), select, textarea {
  border: 1px solid var(--n400); border-radius: 0; background: var(--field); padding: 9px 12px; min-height: 42px; width: 100%;
}
input:not([type=radio]):not([type=checkbox]):focus, select:focus, textarea:focus { border-color: var(--acc); outline: 1px solid var(--acc); outline-offset: 0; }
textarea { resize: vertical; line-height: 1.6; }
label { font-weight: 400; }
.field { display: flex; flex-direction: column; gap: 4px; font: 500 12px var(--fh); letter-spacing: .12em; text-transform: uppercase; color: var(--n700); }
.field input { font: 400 16px var(--fb); letter-spacing: 0; text-transform: none; color: var(--ink); }
.field input.mono { font-family: var(--mono); font-size: 14px; }
.row-form { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
.row-form label { flex: 1 1 140px; display: flex; flex-direction: column; gap: 4px; font: 500 12px var(--fh); letter-spacing: .12em; text-transform: uppercase; color: var(--n700); }
.row-form input { font: 400 15px var(--fb); letter-spacing: 0; text-transform: none; color: var(--ink); }
details > summary { cursor: pointer; font: 600 15px var(--fh); letter-spacing: .1em; text-transform: uppercase; list-style: none; }
details > summary::-webkit-details-marker { display: none; }
details > summary::before { content: "+ "; color: var(--acc); }
details[open] > summary { margin-bottom: 12px; }
details[open] > summary::before { content: "− "; }

/* ---------- course head ---------- */
.head-card { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 20px; padding: 22px 24px; }
.head-card > * { min-width: 0; }
.head-text { flex: 1 1 340px; display: flex; flex-direction: column; gap: 12px; }
.head-text h1 { overflow-wrap: anywhere; }
.link-box { flex: 1 1 300px; min-width: 0; display: flex; align-items: center; gap: 12px; border: 1px solid var(--n400); padding: 10px 12px; background: var(--field); }
.link-text { flex: 1 1 auto; min-width: 0; }
.label { font-size: 12px; color: var(--n700); }
.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--n300); }
.tabs a { padding: 10px 16px; color: var(--n700); text-decoration: none; font-size: 15px; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a:hover { color: var(--ink); }
.tabs a.on { color: var(--ink); border-bottom-color: var(--acc); }
.page-head { display: flex; flex-direction: column; gap: 10px; }
.page-head p { margin: 0; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 0; border: 1px solid var(--hair); }
.stat { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-right: 1px solid var(--n300); }
.stat:last-child { border-right: 0; }
.stat b { display: block; font: 500 30px/1 var(--fh); color: var(--a700); font-variant-numeric: tabular-nums; }
.stat small { font-size: 12px; color: var(--n700); margin-top: 4px; }
.stat-icon { display: none; }

.pending { border-color: var(--warn); border-left: 3px solid var(--warn); display: flex; flex-direction: column; gap: 10px; }
.pending h2 { color: var(--warn); font-size: 16px; }
.pending-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.pending-row > span { flex: 1 1 200px; }
.pending-row form { margin: 0; }

/* ---------- gradebook ---------- */
.table-card { padding: 0; }
.table-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 16px 20px; }
.table-tools h2 { flex: 1 1 200px; }
.table-tools form { margin: 0; }
.search input { width: 220px; }
.scroll-x { overflow-x: auto; }
.tbl { width: 100%; min-width: 1000px; border-collapse: collapse; }
.tbl th { font-size: 12px; color: var(--n700); text-align: left; padding: 10px 12px; white-space: nowrap; border-top: 1px solid var(--n300); border-bottom: 1px solid var(--n300); }
.tbl th:first-child, .tbl td:first-child { padding-left: 20px; }
.tbl th .w { color: var(--n500); letter-spacing: .06em; }
.tbl td { padding: 9px 12px; border-bottom: 1px solid var(--n300); vertical-align: middle; }
.tbl tbody tr:hover td { background: var(--wash); }
.tbl .c { text-align: center; }
.tbl .empty { text-align: center; color: var(--n700); padding: 32px; }
/* Keep the student column visible while the grades scroll sideways. */
.tbl th:first-child, .tbl td:first-child { position: sticky; left: 0; z-index: 1; background: var(--bg); box-shadow: 1px 0 0 var(--n300); }
.tbl tbody tr:hover td:first-child { background: color-mix(in srgb, var(--ink) 4%, var(--bg)); }
.repo { max-width: 280px; }
.chip { display: inline-block; max-width: 100%; font: 400 13px var(--mono); padding: 2px 6px; border: 1px solid var(--n300); color: var(--ink); text-decoration: none; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chip-warn { border-color: var(--warn); color: var(--warn); }
.chip-bad { border-color: var(--bad); color: var(--bad); }

.grade, .final { width: 50px !important; min-height: 34px !important; padding: 4px !important; text-align: center; font: 500 18px var(--fh) !important; -moz-appearance: textfield; }
.grade::-webkit-inner-spin-button, .final::-webkit-inner-spin-button { -webkit-appearance: none; }
.grade { border: 1px dashed var(--n400) !important; background: transparent !important; }
.grade[data-band=hi] { border: 1px solid var(--ok) !important; color: var(--ok); background: color-mix(in srgb, var(--ok) 10%, transparent) !important; }
.grade[data-band=mid] { border: 1px solid var(--a500) !important; color: var(--a800); background: color-mix(in srgb, var(--acc) 12%, transparent) !important; }
.grade[data-band=low] { border: 1px solid var(--warn) !important; color: var(--warn); background: color-mix(in srgb, var(--warn) 10%, transparent) !important; }
.grade[data-band=bad] { border: 1px solid var(--bad) !important; color: var(--bad); background: color-mix(in srgb, var(--bad) 10%, transparent) !important; }
.grade.htmx-request { opacity: 0.6; }
.final { border: 1px solid var(--a700) !important; background: var(--field) !important; font-weight: 600 !important; }
.final::placeholder { color: var(--n500); }
.avg b { font: 500 18px var(--fh); font-variant-numeric: tabular-nums; }
.bar { width: 64px; height: 8px; margin: 4px auto 0; border: 1px solid var(--n300); position: relative; }
.bar > div { position: absolute; left: 0; top: 0; bottom: 0; background: var(--acc); }

.two { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; align-items: start; }

/* ---------- activity ---------- */
.act { min-width: 250px; max-width: 320px; }
.act-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.act-top small { font: 500 12px var(--fh); letter-spacing: .1em; text-transform: uppercase; }
.st { display: inline-block; font-size: 12px; padding: 1px 8px; border: 1px solid var(--n400); color: var(--n800); white-space: nowrap; }
.st-active { border-color: var(--ok); color: var(--ok); }
.st-slow, .st-waiting { border-color: var(--warn); color: var(--warn); }
.st-inactive, .st-empty, .st-blocked { border-color: var(--bad); color: var(--bad); }
.spark { display: flex; align-items: flex-end; gap: 3px; height: 28px; margin: 6px 0 2px; width: max-content; padding: 2px 4px; border-bottom: 1px solid var(--n300); text-decoration: none; }
a.spark:hover { background: var(--wash); }
.spark span { width: 9px; background: var(--n300); display: block; }
.spark span.on { background: var(--acc); }
.act-repo { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-size: 13px; }
.act-repo a { color: inherit; }
.act-filters { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 20px 14px; }
.act-chip { min-height: 34px; padding: 0 12px; border: 1px solid var(--n400); background: transparent; font-size: 13px; cursor: pointer; }
.act-chip:hover { background: var(--wash); }
.act-chip b { margin-left: 6px; font-weight: 600; }
.act-chip[aria-pressed=true] { background: var(--a700); border-color: var(--acc); color: var(--bg); }
.act-chip-active b { color: var(--ok); }
.act-chip-slow b { color: var(--warn); }
.act-chip-inactive b { color: var(--bad); }
.act-chip[aria-pressed=true] b { color: var(--bg); }
.my-act { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.my-act .spark { margin: 0; }
.invite { border-color: var(--warn); border-left: 3px solid var(--warn); align-items: flex-start; }
.invite p { margin: 0; }

/* ---------- new course ---------- */
.split { display: flex; flex-wrap: wrap; gap: 20px; align-items: flex-start; }
.split-main { flex: 999 1 520px; min-width: 0; display: flex; flex-direction: column; gap: 20px; }
.split-side { flex: 1 1 300px; min-width: 0; }
.split > .card.split-main { display: block; }
.step-title { display: flex; align-items: center; gap: 12px; }
.step-title h2 { flex: 1 1 auto; font-size: 18px; letter-spacing: .1em; }
.num { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--a700); color: var(--a700); font: 600 16px var(--fh); flex: none; }
.num-soft { border-color: var(--n400); color: var(--n700); }
.found { display: flex; align-items: center; gap: 14px; padding: 12px 14px; border: 1px solid var(--n300); }
.found b { display: block; font: 500 20px/1.15 var(--fh); }
.tile { width: 44px; height: 44px; display: grid; place-items: center; flex: none; border: 1px solid var(--n400); background: transparent !important; color: var(--n800) !important; font: 600 18px var(--fh); }
.chips { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.chips legend { margin-bottom: 8px; padding: 0; }
.choice input { position: absolute; opacity: 0; }
.choice span { display: inline-flex; align-items: center; min-height: 36px; padding: 0 14px; border: 1px solid var(--n400); font: 600 14px var(--fh); letter-spacing: .1em; text-transform: uppercase; cursor: pointer; }
.choice input:checked + span { background: var(--a700); border-color: var(--acc); color: var(--bg); }
.choice input:focus-visible + span { outline: 2px solid var(--acc); outline-offset: 2px; }
.cols-edit { display: flex; flex-direction: column; gap: 8px; }
.col-row { display: grid; grid-template-columns: minmax(0, 1fr) 96px; gap: 8px; }
.switch-row { display: flex; align-items: center; gap: 12px; }
.switch-row > span { flex: 1 1 auto; }
input[role=switch] { appearance: none; width: 44px; height: 24px; border: 1px solid var(--n500); background: transparent; position: relative; cursor: pointer; flex: none; }
input[role=switch]::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; background: var(--n500); transition: left .12s; }
input[role=switch]:checked { border-color: var(--acc); background: color-mix(in srgb, var(--acc) 15%, transparent); }
input[role=switch]:checked::after { left: 23px; background: var(--a700); }
.narrow { max-width: 540px; }
.narrow select { min-height: 280px; }

/* ---------- attendance ---------- */
.lecture-bar { display: flex; align-items: center; gap: 8px; }
.lectures { flex: 1 1 auto; display: flex; flex-wrap: wrap; gap: 8px; }
.lecture { min-height: 54px; padding: 6px 14px; border: 1px solid var(--n300); color: var(--ink); text-decoration: none; }
.lecture:hover { background: var(--wash); color: var(--ink); }
.lecture b { display: block; font: 500 18px var(--fh); }
.lecture small { display: block; font-size: 12px; color: var(--n700); }
.lecture.taken::after { content: "✓"; float: right; margin-left: 8px; color: var(--ok); font-weight: 700; }
.lecture.on { border-color: var(--acc); border-left: 3px solid var(--acc); background: color-mix(in srgb, var(--acc) 13%, transparent); }
.roll { padding: 0; }
.count { font: 500 14px var(--fh); letter-spacing: .1em; text-transform: uppercase; color: var(--n700); }
.count b { font-size: 26px; color: var(--a700); letter-spacing: 0; }
.roll-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 8px; padding: 0 20px 20px; }
.roll-btn { display: flex; align-items: center; gap: 10px; min-height: 56px; padding: 8px 12px; text-align: left; border: 1px solid var(--n300); background: transparent; cursor: pointer; }
.roll-btn:hover { background: var(--wash); }
.roll-btn b { display: block; font-weight: 600; }
.roll-btn .tick { width: 22px; height: 22px; flex: none; display: grid; place-items: center; border: 1px solid var(--n500); color: transparent; }
.roll-btn.on { border-color: var(--acc); border-left: 3px solid var(--acc); background: color-mix(in srgb, var(--acc) 13%, transparent); }
.roll-btn.on .tick { background: var(--a700); border-color: var(--a700); color: var(--bg); }
.roll-btn.htmx-request { opacity: 0.6; }
.code-card { background: var(--a900); color: var(--bg); border-color: var(--a900); display: flex; flex-direction: column; gap: 12px; }
.code-card h2 { color: var(--bg); }
.code-card p { margin: 0; color: color-mix(in srgb, var(--bg) 82%, var(--a900)); }
.code-card form { margin: 0; }
.code-digits { display: flex; gap: 8px; }
.code-digits span { flex: 1 1 0; height: 64px; display: grid; place-items: center; border: 1px solid color-mix(in srgb, var(--bg) 40%, var(--a900)); font: 600 40px var(--fh); }
.today { display: flex; flex-direction: column; gap: 8px; }
.today-row { display: flex; align-items: center; gap: 16px; padding: 12px 16px; }
.today-row .time { width: 56px; font-family: var(--fh); }
.today-row .time b { font-size: 20px; font-weight: 500; }

/* ---------- student (phone) ---------- */
.phone { max-width: 460px; min-height: 100vh; margin: 0 auto; padding: 26px 20px 34px; display: flex; flex-direction: column; gap: 18px; }
.phone h1 { font-size: 34px; }
.hero { display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.phone-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.phone-top form { margin: 0; }
.handle { font: 400 13px var(--mono); padding: 3px 8px; border: 1px solid var(--n400); }
.steps { display: flex; gap: 4px; }
.steps span { width: 28px; height: 4px; background: var(--n300); }
.steps span.on { background: var(--acc); }
.step-list { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; }
.step-list li { display: flex; gap: 12px; align-items: center; border: 1px solid var(--n300); padding: 11px 14px; }
.step-list li b { display: block; font: 500 18px var(--fh); }
.names { border: 1px solid var(--hair); margin: 0; padding: 4px; display: flex; flex-direction: column; max-height: 52vh; overflow-y: auto; }
.names legend { float: left; width: 100%; padding: 8px 10px 4px; }
.name { display: flex; align-items: center; gap: 12px; min-height: 52px; padding: 0 10px; cursor: pointer; border-left: 3px solid transparent; }
.name:hover { background: var(--wash); }
.name input { position: absolute; opacity: 0; }
.name .tick { width: 22px; height: 22px; display: grid; place-items: center; color: transparent; flex: none; border: 1px solid transparent; }
.name:has(input:checked) { background: color-mix(in srgb, var(--acc) 13%, transparent); border-left-color: var(--acc); }
.name:has(input:checked) .tick { background: var(--a700); color: var(--bg); }
.name:has(input:focus-visible) { outline: 2px solid var(--acc); }
.name.taken { color: var(--n700); cursor: default; }
.name small { font-weight: 400; }
.done { display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; padding-top: 28px; }
.done p { margin: 0; max-width: 320px; }
.done-icon { width: 72px; height: 72px; display: grid; place-items: center; border: 1px solid var(--ok); color: var(--ok); }
.done-icon svg { width: 34px; height: 34px; }
.facts { margin: 0; padding: 4px 16px; }
.facts div { display: flex; justify-content: space-between; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--n300); }
.facts div:last-child { border-bottom: 0; }
.facts dt { font: 500 12px var(--fh); letter-spacing: .12em; text-transform: uppercase; color: var(--n700); padding-top: 3px; }
.facts dd { margin: 0; text-align: right; }
.code-form { background: var(--a900); color: var(--bg); padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.code-form label { font: 600 15px var(--fh); letter-spacing: .1em; text-transform: uppercase; }
.code-row { display: flex; gap: 8px; }
.code-row input { flex: 1 1 auto; background: transparent !important; color: var(--bg); border: 1px solid color-mix(in srgb, var(--bg) 45%, var(--a900)) !important; font: 600 24px var(--fh) !important; letter-spacing: .4em; min-height: 50px !important; }
.code-row .btn { background: var(--bg); border-color: var(--bg); color: var(--a900); min-height: 50px; }
.course-title { display: flex; align-items: center; gap: 10px; }
.course-title h2 { font-size: 22px; }
.mini-stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border: 1px solid var(--n300); }
.ms { padding: 10px 12px; }
.ms + .ms { border-left: 1px solid var(--n300); }
.ms small { font: 500 12px var(--fh); letter-spacing: .12em; text-transform: uppercase; color: var(--n700); }
.ms b { font: 500 30px var(--fh); color: var(--a700); font-variant-numeric: tabular-nums; }
.repo-line { display: flex; align-items: center; gap: 8px; padding: 7px 10px; border: 1px solid var(--n300); font-size: 13px; }
.grade-pills { display: flex; flex-wrap: wrap; gap: 6px; }
.gp { display: flex; flex-direction: column; align-items: center; min-width: 52px; padding: 5px 8px; border: 1px dashed var(--n400); color: var(--n700); }
.gp small { font: 500 11px var(--fh); letter-spacing: .1em; text-transform: uppercase; }
.gp b { font: 500 20px var(--fh); }
.gp[data-band=hi] { border: 1px solid var(--ok); color: var(--ok); }
.gp[data-band=mid] { border: 1px solid var(--a500); color: var(--a800); }
.gp[data-band=low] { border: 1px solid var(--warn); color: var(--warn); }
.gp[data-band=bad] { border: 1px solid var(--bad); color: var(--bad); }
.gp[data-band=final] { background: var(--a700); border: 1px solid var(--acc); color: var(--bg); }

/* ---------- theme switch ---------- */
.theme-btn { display: inline-flex; align-items: center; gap: 8px; }
.theme-btn .sun { display: inline; }
.theme-btn .moon { display: none; }
.dark .theme-btn .sun { display: none; }
.dark .theme-btn .moon { display: inline; }