/* Nimre — styles
   Concept: the teacher's grade register. Ruled rows, navy ink, green marking pen,
   yellow highlighter for what students can see. One bold moment: the hand-drawn score circle. */

/* Fonts are bundled so the app looks the same offline (SIL Open Font License, see fonts/). */
@font-face {
  font-family: "Instrument Sans";
  src: url("../fonts/InstrumentSans.woff2") format("woff2");
  font-weight: 400 700;
  font-stretch: 75% 100%;
  font-display: swap;
}
@font-face {
  font-family: "Noto Kufi Arabic";
  src: url("../fonts/NotoKufiArabic.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --paper: #F5F7F4;
  --surface: #FFFFFF;
  --sunken: #ECF0EC;
  --ink: #1B2A41;
  --ink-2: #44546A;
  --muted: #667285;
  --rule: #DCE2E0;
  --rule-strong: #C3CDCA;
  --pen: #1E7A5A;
  --pen-ink: #FFFFFF;
  --pen-soft: #E3F1EA;
  --marker: #F2C14E;
  --marker-soft: #FCF1D2;
  --danger: #B3261E;
  --danger-soft: #FBE9E7;
  --bar: #1B2A41;
  --bar-ink: #FFFFFF;
  --seg-final: #1B2A41;
  --focus: #2F6690;

  --font: "Instrument Sans", "Noto Kufi Arabic", system-ui, -apple-system, "Segoe UI", Tahoma, sans-serif;
  --r-lg: 22px;
  --r-md: 12px;
  --r-sm: 8px;
  --bar-h: 60px;
  --safe-b: max(env(safe-area-inset-bottom, 0px), var(--safe-area-inset-bottom, 0px));
  --safe-t: max(env(safe-area-inset-top, 0px), var(--safe-area-inset-top, 0px));
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0E1622;
    --surface: #152030;
    --sunken: #0B121C;
    --ink: #E6EBEF;
    --ink-2: #B9C3CE;
    --muted: #8C98A7;
    --rule: #243248;
    --rule-strong: #33435B;
    --pen: #52C99A;
    --pen-ink: #06170F;
    --pen-soft: #163A2D;
    --marker-soft: #3A3217;
    --danger: #F08A82;
    --danger-soft: #3B1F1E;
    --bar: #101A28;
    --seg-final: #C9D3DE;
    --focus: #7FB2E0;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100dvh;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
[dir="rtl"] body { line-height: 1.75; }
body.has-sheet { overflow: hidden; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--pen); }
[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(--muted); }
.small { font-size: 13.5px; }
.center { text-align: center; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 6px; }
.ic { width: 20px; height: 20px; flex: none; }
[dir="rtl"] .ic[data-flip] { transform: scaleX(-1); }
b, strong, .num { font-variant-numeric: tabular-nums; }

/* ───────── Type ───────── */
.h-hero { font-size: clamp(30px, 8vw, 40px); line-height: 1.15; font-weight: 700; letter-spacing: -0.02em; margin: 0 0 10px; }
[dir="rtl"] .h-hero { letter-spacing: 0; line-height: 1.45; }
.h-display { font-size: 26px; line-height: 1.25; font-weight: 700; letter-spacing: -0.015em; margin: 0; }
[dir="rtl"] .h-display { letter-spacing: 0; line-height: 1.55; }
.h-sec { font-size: 18px; line-height: 1.35; font-weight: 700; margin: 0; }
.h-sub { display: flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 600; margin: 0; }
.lead { font-size: 17px; color: var(--ink-2); margin: 0 0 22px; max-width: 34em; }

/* ───────── App bar ───────── */
.bar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 6px;
  min-height: calc(var(--bar-h) + var(--safe-t));
  padding: var(--safe-t) 10px 0;
  background: var(--bar); color: var(--bar-ink);
}
.bar--plain { position: relative; background: transparent; color: var(--ink); }
.brand { display: flex; align-items: center; gap: 10px; padding-inline: 6px; font-weight: 700; font-size: 19px; text-decoration: none; color: inherit; }
.brand--dark { color: var(--ink); }
.logo { border-radius: 24%; flex: none; display: block; }
.bar-title { flex: 1; min-width: 0; display: flex; flex-direction: column; line-height: 1.3; padding-inline: 4px; }
.bar-title strong { font-size: 17px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-title span { font-size: 13px; opacity: .75; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-spacer { flex: 1; }
.bar-actions { display: flex; align-items: center; gap: 2px; }
.lang-btn {
  border: 1.5px solid currentColor; background: transparent; color: inherit;
  border-radius: 999px; padding: 4px 12px; font-size: 14px; font-weight: 600; min-height: 36px; margin-inline-start: 4px;
  opacity: .92;
}
.icon-btn {
  display: inline-grid; place-items: center; width: 44px; height: 44px; flex: none;
  border: 0; border-radius: 999px; background: transparent; color: inherit;
}
.icon-btn:hover { background: color-mix(in srgb, currentColor 10%, transparent); }
.icon-btn--bar .ic { width: 22px; height: 22px; }

/* ───────── Tabs ───────── */
.tabs {
  position: sticky; top: calc(var(--bar-h) + var(--safe-t)); z-index: 25;
  background: var(--bar); color: var(--bar-ink);
  overflow-x: auto; scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tabs-track { display: flex; gap: 4px; padding: 0 10px; min-width: max-content; max-width: 760px; margin: 0 auto; }
.tab {
  position: relative; display: block; padding: 10px 14px 13px; color: inherit; text-decoration: none;
  font-size: 15px; font-weight: 500; opacity: .7; white-space: nowrap;
}
.tab.is-active { opacity: 1; font-weight: 700; }
.tab.is-active::after { content: ""; position: absolute; inset-inline: 10px; bottom: 0; height: 4px; border-radius: 4px 4px 0 0; background: var(--marker); }

/* ───────── Page ───────── */
.page { max-width: 760px; margin: 0 auto; padding: 22px 16px calc(110px + var(--safe-b)); }
.page--narrow { max-width: 560px; }
.block { margin-top: 30px; }
.block .h-sec { margin-bottom: 12px; }
.rule { border: 0; border-top: 1px solid var(--rule); margin: 22px 0; }
.stack { display: flex; flex-direction: column; gap: 14px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.btn-row--tight { margin-top: 0; gap: 8px; }
.btn-row--center { justify-content: center; }
.section-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 14px; }

/* ───────── Buttons ───────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 22px; border-radius: 999px; border: 1.5px solid transparent;
  font-weight: 600; font-size: 16px; text-decoration: none; white-space: nowrap;
  transition: background-color .15s, border-color .15s, transform .1s;
}
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn--primary { background: var(--pen); color: var(--pen-ink); }
.btn--primary:hover { background: color-mix(in srgb, var(--pen) 88%, var(--ink)); }
.btn--ghost { background: var(--surface); border-color: var(--rule-strong); color: var(--ink); }
.btn--ghost:hover { border-color: var(--ink-2); }
.btn--danger { background: var(--danger); color: #fff; }
.btn--danger-ghost { background: transparent; color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); }
.btn--block { width: 100%; }
.btn--sm { min-height: 40px; padding: 0 16px; font-size: 15px; }
.link-btn { display: inline-flex; align-items: center; gap: 8px; border: 0; background: none; color: var(--ink-2); font-weight: 600; padding: 10px 6px; text-decoration: underline; text-underline-offset: 4px; text-decoration-color: var(--rule-strong); }
[aria-busy="true"] { position: relative; color: transparent !important; }
[aria-busy="true"] > * { visibility: hidden; }
[aria-busy="true"]::after {
  content: ""; position: absolute; inset: 0; margin: auto; width: 20px; height: 20px;
  border-radius: 50%; border: 2.5px solid var(--muted); border-top-color: transparent; animation: spin .7s linear infinite;
}
.btn--primary[aria-busy="true"]::after { border-color: var(--pen-ink); border-top-color: transparent; }

/* ───────── Fields ───────── */
.field { display: flex; flex-direction: column; gap: 6px; margin: 0; border: 0; padding: 0; min-width: 0; }
.field > span, .field > legend, .field-label { font-size: 14px; font-weight: 600; color: var(--ink-2); padding: 0; }
.field-hint { color: var(--muted); font-size: 13.5px; }
input[type="text"], input[type="email"], input[type="password"], input[type="search"], input[type="url"], input:not([type]), select, textarea {
  width: 100%; min-height: 50px; padding: 10px 14px;
  background: var(--surface); border: 1.5px solid var(--rule-strong); border-radius: var(--r-md);
  font-size: 16px; outline: none; transition: border-color .15s, box-shadow .15s;
}
textarea { min-height: 170px; resize: vertical; line-height: 1.6; font-size: 15px; }
input:focus, select:focus, textarea:focus { border-color: var(--pen); box-shadow: 0 0 0 3px color-mix(in srgb, var(--pen) 22%, transparent); }
input[dir="ltr"] { text-align: left; }
[dir="rtl"] input[dir="ltr"]::placeholder { text-align: left; }
.form-error { margin: 0; padding: 11px 14px; border-radius: var(--r-md); background: var(--danger-soft); color: var(--danger); font-weight: 500; font-size: 15px; }
.notice { padding: 13px 16px; border-radius: var(--r-md); background: var(--marker-soft); color: var(--ink); margin: 0 0 16px; }
.notice--error { background: var(--danger-soft); color: var(--danger); }

.search { position: relative; display: block; flex: 1; min-width: 180px; }
.search .ic { position: absolute; inset-inline-start: 13px; top: 50%; transform: translateY(-50%); color: var(--muted); pointer-events: none; }
.search input { padding-inline-start: 42px; min-height: 44px; }

.check { display: inline-flex; align-items: center; gap: 9px; font-size: 15px; min-height: 40px; }
.check input { width: 20px; height: 20px; accent-color: var(--pen); margin: 0; }
.select { display: inline-flex; align-items: center; gap: 8px; font-size: 15px; }
.select select { min-height: 40px; width: auto; padding: 6px 12px; }

/* Switch */
.switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; flex: none; position: relative; }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch-track { width: 46px; height: 28px; border-radius: 999px; background: var(--rule-strong); position: relative; transition: background .18s; flex: none; }
.switch-track::after { content: ""; position: absolute; top: 3px; inset-inline-start: 3px; width: 22px; height: 22px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.25); transition: transform .18s; }
.switch input:checked + .switch-track { background: var(--marker); }
.switch input:checked + .switch-track::after { transform: translateX(18px); }
[dir="rtl"] .switch input:checked + .switch-track::after { transform: translateX(-18px); }
.switch input:focus-visible + .switch-track { outline: 3px solid var(--focus); outline-offset: 2px; }
.switch input:disabled + .switch-track { opacity: .6; }
.switch-label { font-size: 14px; font-weight: 600; color: var(--ink-2); }
.switch--row { justify-content: space-between; flex-direction: row-reverse; width: 100%; padding: 6px 0; }
.switch--row .switch-label { flex: 1; font-size: 15px; color: var(--ink); }

/* ───────── Loading / empty ───────── */
.loading { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 60px 0; color: var(--muted); }
.spinner { width: 22px; height: 22px; border-radius: 50%; border: 2.5px solid var(--rule-strong); border-top-color: var(--pen); animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.empty { text-align: center; padding: 44px 18px; border: 1.5px dashed var(--rule-strong); border-radius: var(--r-lg); }
.empty p { margin: 0 auto 18px; max-width: 30em; color: var(--ink-2); }
.empty--inline { padding: 28px 18px; }
.empty--inline p { margin-bottom: 0; }

/* ───────── Ruled rows (the register) ───────── */
.rows { list-style: none; margin: 0; padding: 0; background: var(--surface); border-radius: var(--r-lg); border: 1px solid var(--rule); overflow: hidden; }
.rows > li + li { border-top: 1px solid var(--rule); }
.idx { width: 28px; flex: none; color: var(--muted); font-size: 14px; font-variant-numeric: tabular-nums; text-align: center; }

/* Dashboard */
.greet { margin: 4px 0 26px; }
.greet p { margin: 4px 0 0; }
.dept + .dept { margin-top: 28px; }
.dept-name { font-size: 15px; font-weight: 600; color: var(--muted); margin: 0 0 10px; padding-inline: 4px; }
.subject-list { list-style: none; margin: 0; padding: 0; background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r-lg); overflow: hidden; }
.subject-list li + li { border-top: 1px solid var(--rule); }
.subject-row {
  position: relative; display: grid; grid-template-columns: 1fr auto; gap: 4px 14px;
  padding: 16px 18px 15px; padding-inline-start: 24px; color: inherit; text-decoration: none;
}
.subject-row::before { content: ""; position: absolute; inset-block: 14px; inset-inline-start: 0; width: 6px; border-radius: 0 6px 6px 0; background: var(--tab); }
[dir="rtl"] .subject-row::before { border-radius: 6px 0 0 6px; }
.subject-row:hover { background: color-mix(in srgb, var(--tab) 5%, var(--surface)); }
.subject-main { display: flex; flex-direction: column; min-width: 0; }
.subject-main strong { font-size: 17.5px; line-height: 1.4; }
.subject-main .muted { font-size: 14px; }
.subject-facts { display: flex; flex-direction: column; align-items: flex-end; font-size: 13.5px; color: var(--ink-2); text-align: end; }
.meter { grid-column: 1 / -1; height: 6px; border-radius: 999px; background: var(--sunken); overflow: hidden; margin-top: 10px; }
.meter i { display: block; height: 100%; background: var(--pen); border-radius: 999px; }
.meter--full i { background: var(--pen); }
.meter-label { grid-column: 1 / -1; font-size: 13px; color: var(--muted); }

.fab {
  position: fixed; z-index: 20; inset-inline-end: 16px; bottom: calc(18px + var(--safe-b));
  display: inline-flex; align-items: center; gap: 8px; min-height: 56px; padding: 0 22px 0 18px;
  border: 0; border-radius: 999px; background: var(--pen); color: var(--pen-ink); font-weight: 700; font-size: 16px;
  box-shadow: 0 10px 24px -8px color-mix(in srgb, var(--pen) 70%, transparent);
}
[dir="rtl"] .fab { padding: 0 18px 0 22px; }
@media (min-width: 820px) { .fab { inset-inline-end: calc(50% - 370px); } }

.install-row, .install-hint {
  display: flex; align-items: center; gap: 12px; width: 100%; margin: 18px 0;
  padding: 13px 16px; border-radius: var(--r-md); border: 1px solid var(--rule); background: var(--surface);
  color: var(--ink); font-size: 15px; font-weight: 600; text-align: start;
}
.install-hint { font-weight: 400; color: var(--ink-2); }

/* ───────── Grading ───────── */
.chips { display: flex; gap: 8px; overflow-x: auto; padding: 2px 2px 12px; margin: 0 -16px; padding-inline: 16px; scrollbar-width: none; }
.chips::-webkit-scrollbar { display: none; }
.chip {
  position: relative; display: inline-flex; align-items: center; gap: 8px; flex: none;
  min-height: 42px; padding: 0 14px; border-radius: 999px; border: 1.5px solid var(--rule-strong);
  background: var(--surface); color: var(--ink); font-size: 15px; font-weight: 500; white-space: nowrap;
}
.chip b { font-size: 13px; font-weight: 700; padding: 1px 8px; border-radius: 999px; background: var(--sunken); color: var(--ink-2); }
.chip.is-on { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.chip.is-on b { background: color-mix(in srgb, var(--paper) 18%, transparent); color: var(--paper); }
.chip--sm { min-height: 36px; font-size: 14px; }
.dot-released { position: absolute; top: 3px; inset-inline-end: 4px; width: 9px; height: 9px; border-radius: 50%; background: var(--marker); box-shadow: 0 0 0 2px var(--surface); }

.act-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; margin: 8px 0 14px; }
.act-head p { margin: 2px 0 0; font-size: 14.5px; }
.sep-dot { display: inline-block; width: 4px; height: 4px; border-radius: 50%; background: var(--rule-strong); vertical-align: middle; margin: 0 6px; }
.tools { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; }

.score-row { display: flex; align-items: center; gap: 10px; padding: 7px 12px 7px 8px; min-height: 60px; }
[dir="rtl"] .score-row { padding: 7px 8px 7px 12px; }
.st-name { flex: 1; min-width: 0; font-size: 16px; line-height: 1.4; }
.score-cell { display: inline-flex; align-items: baseline; gap: 3px; flex: none; direction: ltr; }
.score-input {
  width: 74px !important; min-height: 46px !important; padding: 6px 4px !important; text-align: center !important;
  font-size: 20px !important; font-weight: 600; font-variant-numeric: tabular-nums; border-radius: 10px !important;
}
.score-input.is-dirty { border-color: var(--pen); background: var(--pen-soft); }
.score-input.is-invalid { border-color: var(--danger); background: var(--danger-soft); color: var(--danger); }
.of { color: var(--muted); font-size: 14px; width: 30px; }

.savebar {
  position: fixed; z-index: 40; inset-inline: 0; bottom: 0;
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px calc(12px + var(--safe-b));
  background: var(--surface); border-top: 1px solid var(--rule);
  box-shadow: 0 -10px 30px -14px rgba(27, 42, 65, .35);
}
.savebar-count { flex: 1; }
.savebar .btn--primary { flex: none; }
@media (min-width: 820px) { .savebar { inset-inline: calc(50% - 380px); border-radius: var(--r-lg) var(--r-lg) 0 0; border: 1px solid var(--rule); } }

/* ───────── Distribution ───────── */
.dist { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r-lg); padding: 18px 18px 14px; margin-bottom: 18px; }
.dist-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.dist-num { margin: 0; font-variant-numeric: tabular-nums; direction: ltr; }
.dist-num b { font-size: 30px; line-height: 1; }
.dist-num span { color: var(--muted); font-size: 16px; }
.dist-bar { display: flex; height: 20px; border-radius: 999px; overflow: hidden; margin: 14px 0 10px; background: var(--sunken); gap: 2px; }
.dist-bar i { display: block; min-width: 3px; }
.dist-bar .dist-empty { background: repeating-linear-gradient(-45deg, var(--sunken), var(--sunken) 5px, var(--rule) 5px, var(--rule) 7px); }
.dist-note { margin: 0; display: flex; align-items: center; gap: 6px; font-size: 15px; color: var(--ink-2); }
.dist-note.is-full { color: var(--pen); font-weight: 600; }
.act-row { display: flex; align-items: center; gap: 8px; padding-inline-end: 14px; }
.act-open { flex: 1; display: flex; align-items: center; gap: 12px; min-width: 0; padding: 13px 14px; border: 0; background: none; text-align: start; }
.swatch { width: 12px; height: 34px; border-radius: 4px; flex: none; }
.act-name { flex: 1; min-width: 0; display: flex; flex-direction: column; line-height: 1.35; }
.act-name strong { font-size: 16px; }
.act-name small { color: var(--muted); font-size: 13px; }
.act-marks { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; min-width: 42px; text-align: center; }
.act-row .switch-label { display: none; }
.type-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; }
.type-pick { position: relative; }
.type-pick input { position: absolute; opacity: 0; }
.type-pick span {
  display: flex; align-items: center; gap: 9px; min-height: 44px; padding: 6px 12px; border-radius: var(--r-md);
  border: 1.5px solid var(--rule-strong); background: var(--surface); font-size: 14.5px; line-height: 1.3; cursor: pointer;
}
.type-pick i { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.type-pick input:checked + span { border-color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); font-weight: 600; }
.type-pick input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }
.quick { display: flex; flex-wrap: wrap; gap: 6px; margin-top: -4px; }
.input-marks { font-size: 20px !important; font-weight: 600; max-width: 140px; }

/* ───────── Students ───────── */
.student-row { display: flex; align-items: center; gap: 8px; padding: 9px 6px 9px 8px; }
.st-main { flex: 1; min-width: 0; display: flex; flex-direction: column; line-height: 1.4; }
.st-main small { color: var(--muted); font-size: 13.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
[dir="rtl"] .st-main small[dir="ltr"] { text-align: right; }
.st-main small.warn { color: var(--danger); }
.student-list { margin-top: 12px; }
.menu { display: flex; flex-direction: column; margin: 0 -8px; }
.menu-item { display: flex; align-items: center; gap: 14px; min-height: 54px; padding: 8px 12px; border: 0; background: none; border-radius: var(--r-md); text-align: start; font-size: 16px; flex-wrap: wrap; }
.menu-item:hover { background: var(--sunken); }
.menu-item small { flex-basis: 100%; padding-inline-start: 34px; margin-top: -6px; color: var(--muted); font-size: 13px; }
[dir="rtl"] .menu-item small { text-align: right; }
.menu-item--danger { color: var(--danger); }
.roster-preview { margin: -4px 0 0; min-height: 1.5em; font-weight: 600; color: var(--pen); }

/* ───────── Link & QR ───────── */
.poster { max-width: 340px; margin: 4px auto 18px; border-radius: 26px; overflow: hidden; background: var(--surface); border: 1px solid var(--rule); text-align: center; }
.poster-top { background: var(--tab); color: #fff; padding: 18px 18px 58px; display: flex; flex-direction: column; gap: 2px; }
.poster-top small { opacity: .85; font-size: 13px; }
.poster-top strong { font-size: 21px; line-height: 1.35; }
.poster-top span { font-size: 14px; opacity: .9; }
.poster-qr { margin: -44px auto 0; width: 256px; padding: 12px; background: #fff; border-radius: 20px; box-shadow: 0 10px 30px -12px rgba(27, 42, 65, .4); }
.poster-qr canvas { display: block; width: 232px; height: 232px; image-rendering: pixelated; }
.poster-code { font-size: 30px; font-weight: 700; letter-spacing: .22em; margin: 14px 0 0; color: var(--tab); font-variant-numeric: tabular-nums; }
@media (prefers-color-scheme: dark) { .poster-code { color: var(--ink); } }
.poster-note { margin: 0 0 18px; color: var(--ink-2); font-size: 15px; }
.link-box { margin: 10px 0 0; padding: 12px 14px; border-radius: var(--r-md); background: var(--sunken); font-size: 14px; text-align: center; overflow-wrap: anywhere; }
.steps { margin: 0; padding: 0; list-style: none; counter-reset: step; }
.steps li { counter-increment: step; position: relative; padding: 10px 0; padding-inline-start: 46px; min-height: 48px; border-top: 1px solid var(--rule); }
.steps li:first-child { border-top: 0; }
.steps li::before {
  content: counter(step); position: absolute; inset-inline-start: 0; top: 8px;
  width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center;
  border: 2px solid var(--pen); color: var(--pen); font-weight: 700; font-size: 15px;
}
.block--mail { padding-top: 22px; border-top: 1px solid var(--rule); }
.block--mail p { margin: 8px 0 0; }

/* ───────── Report ───────── */
.report-opts { display: flex; flex-wrap: wrap; gap: 4px 18px; align-items: center; margin-bottom: 16px; }
.stats { display: grid; grid-template-columns: repeat(6, 1fr); margin: 0; background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r-lg); overflow: hidden; }
.stat { padding: 14px 10px; text-align: center; }
.stat + .stat { border-inline-start: 1px solid var(--rule); }
.stat dt { font-size: 13px; color: var(--muted); }
.stat dd { margin: 2px 0 0; direction: ltr; }
.stat dd b { font-size: 22px; }
.stat dd span { font-size: 13px; color: var(--muted); }
@media (max-width: 520px) {
  .stats { grid-template-columns: repeat(3, 1fr); }
  .stat:nth-child(4) { border-inline-start: 0; }
  .stat:nth-child(n+4) { border-top: 1px solid var(--rule); }
}
.export-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.export-btn {
  display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 16px 8px 12px;
  border: 1.5px solid var(--rule-strong); background: var(--surface); border-radius: var(--r-lg); color: var(--ink);
}
.export-btn .ic { width: 28px; height: 28px; color: var(--pen); }
.export-btn span { font-weight: 700; font-size: 15px; }
.export-btn small { color: var(--muted); font-size: 12.5px; }
.export-btn:hover { border-color: var(--pen); }

.levels { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.lv { display: grid; grid-template-columns: 96px 1fr 34px; align-items: center; gap: 10px; font-size: 14.5px; }
.lv b { text-align: end; font-variant-numeric: tabular-nums; }
.lv-bar { height: 12px; border-radius: 999px; background: var(--sunken); overflow: hidden; }
.lv-bar i { display: block; height: 100%; border-radius: 999px; background: var(--lvc); min-width: 0; }
.lv--excellent { --lvc: #1E7A5A; }
.lv--veryGood { --lvc: #2F6690; }
.lv--good { --lvc: #2B7F7B; }
.lv--fair { --lvc: #A86F0E; }
.lv--pass { --lvc: #7B4F91; }
.lv--fail { --lvc: var(--danger); }

.table-wrap { overflow-x: auto; border: 1px solid var(--rule); border-radius: var(--r-lg); background: var(--surface); }
.gradebook { border-collapse: separate; border-spacing: 0; width: 100%; font-size: 14.5px; font-variant-numeric: tabular-nums; }
.gradebook th, .gradebook td { padding: 9px 10px; text-align: center; white-space: nowrap; border-bottom: 1px solid var(--rule); }
.gradebook tbody tr:last-child td { border-bottom: 0; }
.gradebook thead th { background: var(--sunken); font-weight: 600; vertical-align: bottom; font-size: 13.5px; }
.gradebook th span { display: block; max-width: 120px; overflow: hidden; text-overflow: ellipsis; margin: 0 auto; }
.gradebook th small { display: block; color: var(--muted); font-weight: 500; }
.gradebook th.is-unreleased span { color: var(--muted); font-style: italic; }
.gradebook .c-idx { position: sticky; inset-inline-start: 0; z-index: 1; background: var(--surface); color: var(--muted); width: 36px; }
.gradebook .c-name { position: sticky; inset-inline-start: 36px; z-index: 1; background: var(--surface); text-align: start; min-width: 150px; max-width: 220px; white-space: normal; border-inline-end: 1px solid var(--rule); }
.gradebook thead .c-idx, .gradebook thead .c-name { background: var(--sunken); z-index: 2; }
.gradebook .c-total { background: var(--pen-soft); font-weight: 700; }
.gradebook .c-strong { font-weight: 600; }
.gradebook .blank { color: var(--rule-strong); }
.lv-cell { font-size: 13.5px; font-weight: 600; color: var(--lvc); }

/* ───────── Sheets ───────── */
.sheet-wrap { position: fixed; inset: 0; z-index: 100; display: flex; align-items: flex-end; justify-content: center; }
.sheet-backdrop { position: absolute; inset: 0; background: rgba(12, 20, 32, .5); opacity: 0; transition: opacity .2s; }
.sheet {
  position: relative; width: 100%; max-width: 560px; max-height: 90dvh; overflow-y: auto; overscroll-behavior: contain;
  background: var(--surface); border-radius: 26px 26px 0 0; padding: 6px 20px calc(24px + var(--safe-b));
  transform: translateY(100%); transition: transform .22s cubic-bezier(.2, .8, .2, 1); outline: none;
}
.sheet-wrap.is-open .sheet-backdrop { opacity: 1; }
.sheet-wrap.is-open .sheet { transform: none; }
@media (min-width: 640px) {
  .sheet-wrap { align-items: center; padding: 24px; }
  .sheet { border-radius: 26px; padding-bottom: 24px; transform: translateY(24px); opacity: 0; transition: transform .2s, opacity .2s; }
  .sheet-wrap.is-open .sheet { opacity: 1; }
}
.sheet-grip { width: 42px; height: 5px; border-radius: 999px; background: var(--rule-strong); margin: 4px auto 2px; }
.sheet-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 0 -10px 10px 0; min-height: 50px; }
[dir="rtl"] .sheet-head { margin: 0 0 10px -10px; }
.sheet-head h2 { font-size: 19px; margin: 0; line-height: 1.35; }
.sheet-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.sheet-actions .btn--primary { flex: 1; }
.sheet-wrap--confirm .sheet-head h2 { display: none; }
.confirm-text { font-size: 17px; margin: 0 0 18px; line-height: 1.6; }
.swatches { display: flex; gap: 10px; flex-wrap: wrap; }
.swatch-pick input { position: absolute; opacity: 0; }
.swatch-pick span { display: block; width: 38px; height: 38px; border-radius: 50%; background: var(--c); cursor: pointer; box-shadow: inset 0 0 0 2px rgba(255,255,255,.35); }
.swatch-pick input:checked + span { box-shadow: 0 0 0 3px var(--surface), 0 0 0 5px var(--c); }
.swatch-pick input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 4px; }
.seg { display: inline-flex; padding: 4px; border-radius: 999px; background: var(--sunken); }
.seg-btn { border: 0; background: transparent; min-height: 40px; padding: 0 20px; border-radius: 999px; font-weight: 600; color: var(--ink-2); }
.seg-btn.is-on { background: var(--surface); color: var(--ink); box-shadow: 0 1px 3px rgba(0,0,0,.12); }
.pick-list { margin-top: 12px; }
.pick-row { position: relative; width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 16px; padding-inline-start: 22px; border: 0; background: none; text-align: start; }
.pick-row::before { content: ""; position: absolute; inset-block: 12px; inset-inline-start: 0; width: 5px; background: var(--tab); border-radius: 0 5px 5px 0; }
.pick-row span:first-child { display: flex; flex-direction: column; }
.pick-row small, .pick-meta { color: var(--muted); font-size: 13.5px; }
.pick-meta b { color: var(--ink); font-size: 16px; margin-inline-start: 6px; }
.version { text-align: center; font-size: 12.5px; margin: 16px 0 0; }

/* ───────── Toast ───────── */
.toast {
  position: fixed; z-index: 200; left: 50%; bottom: calc(24px + var(--safe-b)); transform: translate(-50%, 20px);
  max-width: min(92vw, 480px); padding: 12px 18px; border-radius: 14px;
  background: var(--ink); color: var(--paper); font-weight: 500; font-size: 15px; text-align: center;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s;
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }
.toast--error { background: var(--danger); color: #fff; }
body.has-savebar .toast { bottom: calc(96px + var(--safe-b)); }

/* ───────── Auth & welcome ───────── */
.auth { max-width: 420px; margin: 0 auto; padding: 12px 20px 60px; }
.auth-mark { margin: 12px 0 20px; }
.welcome { max-width: 520px; margin: 0 auto; padding: 8px 20px calc(40px + var(--safe-b)); }
.welcome-mark { margin: 18px 0 26px; }
.welcome-mark .logo { border-radius: 26px; }
.code-form { display: flex; flex-direction: column; gap: 12px; }
.code-input { font-size: 28px !important; font-weight: 700; letter-spacing: .3em; text-align: center !important; text-transform: uppercase; min-height: 64px !important; }
.code-input::placeholder { letter-spacing: .3em; color: var(--rule-strong); text-align: center !important; }
.link-row { display: flex; align-items: center; gap: 4px; padding-inline-end: 6px; }
.link-row a { position: relative; flex: 1; display: flex; flex-direction: column; padding: 13px 16px; padding-inline-start: 22px; color: inherit; text-decoration: none; line-height: 1.4; }
.link-row a::before { content: ""; position: absolute; inset-block: 12px; inset-inline-start: 0; width: 5px; background: var(--tab); border-radius: 0 5px 5px 0; }
[dir="rtl"] .link-row a::before, [dir="rtl"] .pick-row::before { border-radius: 5px 0 0 5px; }
.link-row small { color: var(--muted); font-size: 13.5px; }
.welcome-foot { margin-top: 36px; padding-top: 18px; border-top: 1px solid var(--rule); text-align: center; }

/* ───────── Student pages ───────── */
.subject-card, .report-head {
  position: relative; padding: 20px 20px 18px; padding-inline-start: 26px; margin-bottom: 20px;
  background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r-lg); overflow: hidden;
}
.subject-card::before, .report-head::before { content: ""; position: absolute; inset-block: 0; inset-inline-start: 0; width: 7px; background: var(--tab); }
.subject-card small, .report-head small { color: var(--muted); font-size: 13.5px; }
.subject-card h1, .report-head h1 { font-size: 24px; line-height: 1.35; margin: 2px 0 2px; }
.subject-card p, .report-head p { margin: 0; color: var(--ink-2); }
.subject-card-teacher { margin-top: 8px !important; font-size: 14.5px; }
.request-form { margin-top: 26px; }
.sent { text-align: center; padding: 30px 18px; margin-top: 24px; border-radius: var(--r-lg); background: var(--pen-soft); }
.sent-mark { width: 64px; height: 64px; margin: 0 auto 12px; border-radius: 50%; display: grid; place-items: center; background: var(--pen); color: var(--pen-ink); }
.sent-mark .ic { width: 30px; height: 30px; }
.sent p { margin: 8px auto 18px; max-width: 26em; overflow-wrap: anywhere; }

.score-hero { text-align: center; padding: 6px 0 22px; }
.student-name { font-size: 20px; font-weight: 700; margin: 0 0 6px; }
.ring { position: relative; width: 236px; height: 236px; margin: 0 auto; }
.ring svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.ring path { fill: none; stroke: var(--pen); stroke-width: 7; stroke-linecap: round; stroke-linejoin: round; }
.ring--draw path { stroke-dasharray: 100; stroke-dashoffset: 100; animation: draw 1.1s cubic-bezier(.6, .1, .3, 1) .15s forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.ring-num { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.ring-num b { font-size: 60px; line-height: 1; font-weight: 700; letter-spacing: -0.03em; font-family: "Instrument Sans", system-ui, sans-serif; }
.ring-num span { font-size: 16px; color: var(--muted); margin-top: 6px; }
.hero-caption { margin: 4px 0 0; color: var(--ink-2); font-size: 15px; }
.hero-pct { display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap; margin: 8px 0 0; font-size: 15px; color: var(--muted); }
.level-badge { padding: 3px 12px; border-radius: 999px; font-weight: 700; font-size: 14px; color: #fff; background: var(--lvc); }
.empty-text { max-width: 26em; margin: 22px auto 0; color: var(--ink-2); padding: 22px; border: 1.5px dashed var(--rule-strong); border-radius: var(--r-lg); }

.result { display: grid; grid-template-columns: 1fr auto; gap: 2px 14px; align-items: center; padding: 13px 16px 12px; }
.result-name { display: flex; flex-direction: column; line-height: 1.4; min-width: 0; }
.result-name strong { font-size: 16px; }
.result-name small { color: var(--muted); font-size: 13px; }
.result-score { font-variant-numeric: tabular-nums; white-space: nowrap; }
.result-score b { font-size: 24px; }
.result-score span { color: var(--muted); font-size: 15px; margin-inline-start: 2px; }
.result-score em { font-style: normal; color: var(--muted); font-size: 14px; }
.result-bar { grid-column: 1 / -1; height: 5px; border-radius: 999px; background: var(--sunken); overflow: hidden; margin-top: 8px; }
.result-bar i { display: block; height: 100%; background: var(--pen); border-radius: 999px; }
[dir="rtl"] .result-bar i { margin-inline-start: 0; }
.pending { margin: 14px 0 0; padding: 12px 16px; border-radius: var(--r-md); background: var(--marker-soft); font-size: 15px; }
.updated { margin: 16px 0 0; text-align: center; }

/* ───────── Android app ───────── */
.is-native body { overscroll-behavior-y: none; -webkit-user-select: none; user-select: none; }
.is-native input, .is-native textarea, .is-native .st-main small, .is-native .link-box { -webkit-user-select: text; user-select: text; }
.install-row--warn { background: var(--marker-soft); border-color: color-mix(in srgb, var(--marker) 55%, transparent); }
.status-line { display: flex; align-items: center; gap: 8px; margin: 8px 0; font-weight: 600; color: var(--ink-2); }
.status-line.is-on { color: var(--pen); }
.publish { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r-lg); padding: 16px 18px; margin-bottom: 20px; }
.publish .h-sec { margin-bottom: 4px; }
.publish .btn { margin-top: 8px; }
.publish p.small { margin: 10px 0 0; }
.publish--pending { border-color: color-mix(in srgb, var(--marker) 70%, transparent); box-shadow: inset 4px 0 0 var(--marker); }
[dir="rtl"] .publish--pending { box-shadow: inset -4px 0 0 var(--marker); }
.file-ready { display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; padding: 6px 0 16px; }
.file-ready .ic { width: 40px; height: 40px; padding: 8px; border-radius: 50%; background: var(--pen-soft); color: var(--pen); }
.file-ready strong { overflow-wrap: anywhere; }
.file-ready p { margin: 0; }

/* ───────── Motion & print ───────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .ring--draw path { stroke-dashoffset: 0; }
}

#print-area { display: none; }
@media print {
  body { background: #fff; color: #000; }
  #app, #toast, .sheet-wrap { display: none !important; }
  #print-area { display: block; font-family: var(--font); color: #1B2A41; }
  .pr-head { text-align: center; margin-bottom: 14px; }
  .pr-head h1 { font-size: 20pt; margin: 2px 0; }
  .pr-head p { margin: 2px 0; font-size: 11pt; color: #44546A; }
  .pr-head .pr-small { font-size: 9.5pt; color: #667285; }
  .pr-table { width: 100%; border-collapse: collapse; font-size: 10pt; }
  .pr-table th { background: #1B2A41 !important; color: #fff !important; padding: 6px 5px; border: 1px solid #1B2A41; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .pr-table th small { display: block; font-weight: 400; opacity: .8; }
  .pr-table td { padding: 5px; border: 1px solid #C3CDCA; text-align: center; }
  .pr-table td.k-name { text-align: start; }
  .pr-table tbody tr:nth-child(even) td { background: #F5F7F4 !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .pr-table td.k-total { font-weight: 700; background: #E3F1EA !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .pr-table td.is-fail { color: #B3261E; }
  .pr-table tr { break-inside: avoid; }
  .pr-table thead { display: table-header-group; }
  .pr-summary { font-size: 10pt; color: #44546A; margin: 12px 0 34px; }
  .pr-sign { display: flex; justify-content: space-around; font-size: 10.5pt; }
  .pr-sign div { text-align: center; padding-top: 44px; border-top: 0; min-width: 34%; position: relative; }
  .pr-sign div::after { content: ""; position: absolute; left: 10%; right: 10%; top: 36px; border-top: 1px dotted #667285; }
}