/* Tamrin Bac — single stylesheet. Mobile-first, RTL/LTR via logical properties. */
:root {
  --paper: #F3F6F4; --surface: #FFFFFF; --ink: #13221F; --muted: #566763; --line: #D8E2DE;
  --brand: #0D5A51; --brand-ink: #FFFFFF; --brand-soft: #E1EEEA;
  --saffron: #A86F05; --saffron-soft: #FAF0DA;
  --good: #1D7543; --good-soft: #E2F2E8; --bad: #B0281F; --bad-soft: #FBE6E3; --warn: #8C5A00; --warn-soft: #FBF0D6;
  --f-display: "Readex Pro", "IBM Plex Sans Arabic", system-ui, sans-serif;
  --f-body: "IBM Plex Sans Arabic", "Segoe UI", Tahoma, system-ui, sans-serif;
  --f-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --r: 10px; --gap: 16px; --max: 1120px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0E1614; --surface: #15201D; --ink: #E4EDEA; --muted: #9AACA7; --line: #283632;
    --brand: #4DB3A4; --brand-ink: #04211D; --brand-soft: #173430;
    --saffron: #E7B44A; --saffron-soft: #2C2412;
    --good: #5DC28A; --good-soft: #14301F; --bad: #F08A80; --bad-soft: #3A1815; --warn: #E3B453; --warn-soft: #2E2510;
    color-scheme: dark;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.65 var(--f-body); }
h1, h2, h3 { font-family: var(--f-display); line-height: 1.3; text-wrap: balance; margin: 0 0 .5em; }
h1 { font-size: clamp(1.5rem, 4vw, 2.1rem); }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }
p { margin: 0 0 .75em; }
a { color: var(--brand); text-underline-offset: 2px; }
img { max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--saffron); outline-offset: 2px; border-radius: 4px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; inset-inline-start: 8px; top: -60px; background: var(--ink); color: var(--paper); padding: 8px 14px; border-radius: 8px; z-index: 50; }
.skip:focus { top: 8px; }
.num { font-variant-numeric: tabular-nums; }
.mono { font-family: var(--f-mono); font-size: .92em; direction: ltr; unicode-bidi: isolate; }
.sel, .select { user-select: all; }
.small { font-size: .875rem; } .xsmall { font-size: .78rem; } .big { font-size: 1.2rem; font-weight: 600; }
.muted { color: var(--muted); }
.nowrap { white-space: nowrap; }
.center { text-align: center; } .center-block { margin-inline: auto; }
.eyebrow { font-size: .8rem; font-weight: 600; letter-spacing: .05em; color: var(--saffron); text-transform: uppercase; margin-bottom: .3em; }
.lead { color: var(--muted); font-size: 1.05rem; max-width: 65ch; }
.prose { max-width: 70ch; }
.prose ul, .prose ol { padding-inline-start: 1.3em; }

/* layout */
.wrap { max-width: var(--max); margin-inline: auto; padding-inline: max(16px, env(safe-area-inset-left, 0px)) max(16px, env(safe-area-inset-right, 0px)); }
.narrow { max-width: 760px; }
.main { padding-block: 24px 48px; display: grid; gap: 28px; align-content: start; min-height: 60vh; }
.main > .wrap { display: grid; gap: 18px; align-content: start; width: 100%; }
.grid-2, .grid2 { display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.grid-3, .grid3 { display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); }
.grid-2 > *, .grid-3 > * { min-width: 0; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.wrap-row { flex-wrap: wrap; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.inline { display: inline; }

/* header / footer */
.demo-band { background: var(--saffron-soft); color: var(--warn); text-align: center; font-size: .85rem; padding: 6px 16px; border-bottom: 1px solid var(--line); }
.site-head { background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.head-in { max-width: var(--max); margin-inline: auto; padding: 10px max(16px, env(safe-area-inset-right, 0px)) 10px max(16px, env(safe-area-inset-left, 0px)); display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.logo { display: inline-flex; align-items: center; gap: 9px; font-family: var(--f-display); font-weight: 700; font-size: 1.1rem; color: var(--ink); text-decoration: none; }
.nav { display: flex; gap: 2px; flex: 1; flex-wrap: wrap; }
.nav a { padding: 6px 10px; border-radius: 8px; color: var(--muted); text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] { color: var(--brand); background: var(--brand-soft); }
.head-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.head-actions form { margin: 0; }
.lang { font-size: .9rem; }
@media (max-width: 760px) {
  .nav { order: 3; flex-basis: 100%; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
  .nav a { white-space: nowrap; }
}
.site-foot { border-top: 1px solid var(--line); background: var(--surface); }
.foot-in { max-width: var(--max); margin-inline: auto; padding: 20px max(16px, env(safe-area-inset-left, 0px)); font-size: .85rem; color: var(--muted); display: grid; gap: 8px; }
.foot-in nav { display: flex; flex-wrap: wrap; gap: 14px; }
.foot-in a { color: var(--muted); }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 9px; padding: 10px 18px; font-weight: 600; border: 1px solid transparent; cursor: pointer; text-decoration: none; line-height: 1.2; min-height: 44px; }
.btn-p { background: var(--brand); color: var(--brand-ink); }
.btn-p:hover { filter: brightness(1.08); }
.btn-g { background: transparent; border-color: var(--line); color: var(--ink); }
.btn-g:hover { border-color: var(--brand); color: var(--brand); }
.btn-danger { background: var(--bad); color: #fff; }
.btn-s { padding: 6px 12px; font-size: .9rem; min-height: 36px; }
.btn-xs { padding: 3px 9px; font-size: .8rem; min-height: 28px; border-radius: 7px; }
.btn-block { width: 100%; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .5; cursor: not-allowed; }
.btn-link { background: none; border: 0; padding: 0; color: var(--brand); cursor: pointer; text-decoration: underline; text-underline-offset: 2px; }

/* cards, chips, notes */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px; min-width: 0; }
.card > :last-child { margin-bottom: 0; }
.card-inner { border-top: 1px solid var(--line); padding-top: 12px; margin-top: 12px; }
.card-link { display: block; text-decoration: none; color: inherit; transition: border-color .15s; }
.card-link:hover { border-color: var(--brand); }
.chip { display: inline-flex; align-items: center; gap: 5px; font-size: .78rem; font-weight: 600; padding: 2px 9px; border-radius: 999px; white-space: nowrap; background: var(--brand-soft); color: var(--brand); }
.chip-lg { font-size: .9rem; padding: 4px 12px; }
.chip-ok { background: var(--good-soft); color: var(--good); }
.chip-bad { background: var(--bad-soft); color: var(--bad); }
.chip-warn, .chip-verify { background: var(--warn-soft); color: var(--warn); }
.chip-soft { background: color-mix(in srgb, var(--muted) 14%, transparent); color: var(--muted); }
.chip-brand { background: var(--brand-soft); color: var(--brand); }
.tag { display: inline-block; font-size: .8rem; padding: 1px 8px; border: 1px solid var(--line); border-radius: 6px; margin-inline-end: 4px; }
.note { font-size: .9rem; color: var(--muted); }
.note-box { background: var(--brand-soft); border-radius: var(--r); padding: 12px 14px; }
.note-box > :last-child { margin-bottom: 0; }
.note-ok { background: var(--good-soft); }
.note-bad { background: var(--bad-soft); }
.empty { text-align: center; color: var(--muted); }
.empty h2 { color: var(--ink); }
.flashes { display: grid; gap: 8px; }
.flash { margin: 0; padding: 10px 14px; border-radius: var(--r); background: var(--brand-soft); }
.flash-success { background: var(--good-soft); color: var(--good); }
.flash-error { background: var(--bad-soft); color: var(--bad); }
.flash-info { background: var(--saffron-soft); color: var(--warn); }

/* forms */
.form { display: grid; gap: 14px; align-content: start; }
.form-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; }
.form-row .field { flex: 1 1 180px; }
.field { display: grid; gap: 5px; min-width: 0; }
.field-xs { max-width: 120px; flex: 0 0 110px !important; }
.field label, legend { font-weight: 600; font-size: .92rem; }
input:not([type="checkbox"]):not([type="radio"]):not([type="file"]), select, textarea {
  width: 100%; background: var(--surface); border: 1px solid var(--line); border-radius: 9px; padding: 9px 12px; min-height: 44px;
}
input[type="file"] { padding: 8px 0; }
textarea { resize: vertical; min-height: 80px; }
input:focus, select:focus, textarea:focus { border-color: var(--brand); outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 25%, transparent); }
input[disabled] { opacity: .7; }
.input-xs { max-width: 80px; }
.inline-field { grid-template-columns: auto 1fr auto; align-items: center; }
.unit { color: var(--muted); }
fieldset { border: 1px solid var(--line); border-radius: var(--r); padding: 12px 14px; margin: 0; display: grid; gap: 8px; min-width: 0; }
legend { padding-inline: 6px; }
.check { display: flex; gap: 8px; align-items: center; font-weight: 400; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--brand); flex: none; }
.hint { font-size: .82rem; color: var(--muted); margin: 0; }
.req { color: var(--bad); }
.err, .form-error { color: var(--bad); font-size: .88rem; margin: 0; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.filters input, .filters select { width: auto; min-width: 140px; flex: 1 1 140px; max-width: 260px; }
.inline-form { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.inline-form select { width: auto; flex: 1 1 160px; }

/* tables & lists */
.table-wrap { overflow-x: auto; position: relative; }
.table-wrap.card { padding: 0; }
.table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.table th, .table td { text-align: start; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { font-size: .78rem; letter-spacing: .03em; color: var(--muted); font-weight: 600; white-space: nowrap; }
.table tr:last-child td { border-bottom: 0; }
.child-row td:first-child, .child-row td:nth-child(2) { padding-inline-start: 26px; }
.kv { display: grid; grid-template-columns: minmax(110px, max-content) 1fr; gap: 6px 16px; margin: 0; }
.kv dt { color: var(--muted); font-size: .9rem; }
.kv dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
@media (max-width: 480px) { .kv { grid-template-columns: 1fr; } .kv dd { margin-bottom: 6px; } }
.plain { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.ticks li { padding-inline-start: 22px; position: relative; }
.ticks li::before { content: ""; position: absolute; inset-inline-start: 2px; top: .55em; width: 10px; height: 6px; border-inline-start: 2px solid var(--good); border-bottom: 2px solid var(--good); transform: rotate(-45deg); }
[dir="rtl"] .ticks li::before { transform: rotate(45deg) scaleX(-1); }
.timeline { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 4px; font-size: .9rem; }
.steps, .steps4 { padding: 0; margin: 0; list-style: none; display: grid; gap: 12px; counter-reset: s; }
.steps li { counter-increment: s; padding-inline-start: 34px; position: relative; }
.steps li::before { content: counter(s); position: absolute; inset-inline-start: 0; top: 0; width: 24px; height: 24px; border-radius: 50%; background: var(--brand-soft); color: var(--brand); font-weight: 700; font-size: .85rem; display: grid; place-items: center; }
.steps4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); gap: 18px; }
.steps4 li { border-top: 2px solid var(--brand); padding-top: 10px; }
.step-n { font-family: var(--f-display); font-weight: 700; font-size: 1.4rem; color: var(--brand); }
.steps4 p { color: var(--muted); font-size: .92rem; }
.crumbs ol { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; font-size: .85rem; color: var(--muted); }
.crumbs li + li::before { content: "/"; margin-inline-end: 6px; color: var(--line); }
.pager { display: flex; gap: 10px; align-items: center; justify-content: center; margin-top: 12px; }
.tabs, .subnav { display: flex; gap: 4px; overflow-x: auto; border-bottom: 1px solid var(--line); scrollbar-width: none; }
.tabs a, .subnav a { padding: 8px 12px; white-space: nowrap; text-decoration: none; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a[aria-current="page"], .subnav a[aria-current="page"] { color: var(--brand); border-color: var(--brand); font-weight: 600; }
.tiles { list-style: none; padding: 0; margin: 0 0 12px; display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 170px), 1fr)); }
.tile { display: block; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--r); text-decoration: none; color: var(--ink); font-weight: 500; background: var(--surface); }
.tile:hover { border-color: var(--brand); color: var(--brand); }
.lesson-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; }
.lesson-list li { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.lesson-list li:last-child { border-bottom: 0; }
.lesson-list .meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.unit { display: grid; gap: 10px; }
section.unit h2 { margin: 6px 0 0; }
.qlist { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }

/* hero & home */
.hero { display: grid; gap: 28px; align-items: center; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); padding-block: 12px; }
.hero h1 { font-size: clamp(1.8rem, 5vw, 2.7rem); }
.sample { background: linear-gradient(160deg, var(--brand-soft), var(--surface) 55%); }
.opts-static { list-style: none; padding: 0; margin: 0 0 10px; display: grid; gap: 8px; }
.opts-static li { display: flex; gap: 10px; align-items: center; border: 1px solid var(--line); border-radius: var(--r); padding: 9px 12px; background: var(--surface); }

/* plans */
.plans { display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr)); align-items: start; }
.plan { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 22px 20px; display: grid; gap: 12px; }
.plan h3 { margin: 0; font-size: 1.15rem; }
.plan-best { border: 2px solid var(--brand); }
.plan-flag { position: absolute; top: -11px; inset-inline-start: 18px; background: var(--brand); color: var(--brand-ink); font-size: .75rem; font-weight: 700; padding: 2px 10px; border-radius: 999px; }
.price { margin: 0; display: flex; align-items: baseline; gap: 6px; flex-wrap: wrap; }
.price .num { font-family: var(--f-display); font-size: 2.3rem; font-weight: 700; line-height: 1; }
.per { color: var(--muted); font-size: .92rem; }
.plan-levels { margin: 0; display: flex; gap: 6px; }
.valid { background: color-mix(in srgb, var(--muted) 9%, transparent); border-radius: 8px; padding: 7px 11px; font-size: .9rem; margin: 0; }

/* quiz */
.quiz { display: grid; gap: 16px; }
.quiz-head { display: flex; justify-content: space-between; gap: 12px; align-items: end; flex-wrap: wrap; }
.quiz-meta { display: flex; gap: 10px; align-items: center; }
.timer { background: var(--ink); color: var(--paper); border-radius: 8px; padding: 4px 10px; font-weight: 700; font-family: var(--f-mono); }
.timer.low { background: var(--bad); color: #fff; }
.qcard { display: grid; gap: 12px; scroll-margin-top: 80px; }
.q-body { font-size: 1.06rem; font-weight: 500; overflow-x: auto; }
.save-btn { background: none; border: 1px solid var(--line); border-radius: 8px; padding: 5px 7px; color: var(--muted); cursor: pointer; display: inline-grid; place-items: center; min-width: 36px; min-height: 36px; }
.save-btn[aria-pressed="true"] { color: var(--saffron); border-color: var(--saffron); }
.save-btn[aria-pressed="true"] path { fill: currentColor; }
.opts { display: grid; gap: 8px; }
.opts-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.opt { display: flex; gap: 10px; align-items: center; border: 1px solid var(--line); border-radius: var(--r); padding: 10px 12px; cursor: pointer; background: var(--surface); min-height: 48px; }
.opt:hover { border-color: var(--brand); }
.opt input { accent-color: var(--brand); width: 18px; height: 18px; flex: none; }
.opt:has(input:checked) { border-color: var(--brand); background: var(--brand-soft); }
.opt:has(input:disabled) { cursor: default; }
.opt-ok { border-color: var(--good) !important; background: var(--good-soft) !important; }
.opt-bad { border-color: var(--bad) !important; background: var(--bad-soft) !important; }
.opt-key { width: 26px; height: 26px; border-radius: 7px; background: color-mix(in srgb, var(--muted) 14%, transparent); display: grid; place-items: center; font-weight: 700; font-size: .85rem; flex: none; font-family: var(--f-mono); }
.feedback { border-radius: var(--r); padding: 12px 14px; background: var(--brand-soft); display: grid; gap: 6px; }
.feedback p { margin: 0; }
.fb-title { font-weight: 700; }
.fb-ok { background: var(--good-soft); } .fb-ok .fb-title { color: var(--good); }
.fb-bad { background: var(--bad-soft); } .fb-bad .fb-title { color: var(--bad); }
.fb-pending { background: var(--warn-soft); } .fb-pending .fb-title { color: var(--warn); }
.hint-box summary { cursor: pointer; color: var(--saffron); font-weight: 600; font-size: .92rem; }
.submit-bar { position: sticky; bottom: 0; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; box-shadow: 0 -6px 20px color-mix(in srgb, var(--ink) 8%, transparent); padding-bottom: calc(18px + env(safe-area-inset-bottom, 0px)); }
.submit-bar p { margin: 0; }
.confirm-box { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; width: 100%; }
.confirm-box p { flex-basis: 100%; }
.modes { display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }
.mode-opt { display: flex; gap: 10px; align-items: start; border: 1px solid var(--line); border-radius: var(--r); padding: 10px 12px; cursor: pointer; }
.mode-opt:has(input:checked) { border-color: var(--brand); background: var(--brand-soft); }
.mode-opt span { display: grid; }
.mode-opt small { color: var(--muted); }
.score, .ring { font-family: var(--f-display); font-weight: 700; font-size: 2.6rem; line-height: 1; color: var(--brand); }
.answer-box { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); padding: 10px 12px; white-space: pre-wrap; }
.katex-display { overflow-x: auto; overflow-y: hidden; padding-block: 4px; }

/* dashboard */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 12px; margin-bottom: 12px; }
.stats > div { display: grid; }
.stat { font-family: var(--f-display); font-weight: 700; font-size: 1.7rem; text-decoration: none; color: var(--ink); line-height: 1.2; }
a.stat { color: var(--brand); }
.bars { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.bars li { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(80px, 2fr) auto; gap: 10px; align-items: center; }
.bar { height: 10px; background: color-mix(in srgb, var(--muted) 15%, transparent); border-radius: 99px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--brand); border-radius: 99px; min-width: 2px; }
@media (max-width: 520px) { .bars li { grid-template-columns: 1fr auto; } .bars li .bar { grid-column: 1 / -1; grid-row: 2; } }
.sub { display: grid; gap: 6px; }
.stream-card { display: grid; gap: 8px; }
.sub-streams { display: flex; flex-wrap: wrap; gap: 6px; }
.bank .big.mono { letter-spacing: .04em; }

/* admin */
.admin-body { background: var(--paper); }
.admin { display: grid; grid-template-columns: 230px minmax(0, 1fr); min-height: 100vh; }
.admin-side { background: var(--surface); border-inline-end: 1px solid var(--line); padding: 16px 12px; display: flex; flex-direction: column; gap: 14px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.admin-side nav { display: grid; gap: 2px; }
.admin-side nav a { padding: 7px 10px; border-radius: 8px; color: var(--muted); text-decoration: none; font-size: .92rem; display: flex; justify-content: space-between; gap: 6px; }
.admin-side nav a:hover { color: var(--ink); }
.admin-side nav a[aria-current="page"] { background: var(--brand-soft); color: var(--brand); font-weight: 600; }
.count { background: var(--saffron); color: var(--ink); border-radius: 999px; padding: 0 7px; font-size: .75rem; font-weight: 700; }
.admin-side-foot { margin-top: auto; display: grid; gap: 6px; font-size: .88rem; }
.admin-main { padding: 22px max(16px, env(safe-area-inset-right, 0px)) 48px max(16px, env(safe-area-inset-left, 0px)); display: grid; gap: 16px; align-content: start; max-width: 1200px; width: 100%; }
@media (max-width: 860px) {
  .admin { grid-template-columns: minmax(0, 1fr); }
  .admin-side { position: static; height: auto; border-inline-end: 0; border-bottom: 1px solid var(--line); }
  .admin-side nav { display: flex; overflow-x: auto; gap: 4px; scrollbar-width: thin; }
  .admin-side nav a { white-space: nowrap; }
  .admin-side-foot { flex-direction: row; display: flex; flex-wrap: wrap; gap: 14px; }
}
.kpis { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); }
.kpi { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; display: grid; gap: 4px; }
.kpi strong { font-family: var(--f-display); font-size: 1.5rem; }
.kpi-warn { border-color: color-mix(in srgb, var(--warn) 40%, var(--line)); background: var(--warn-soft); }
.receipt { margin: 0 0 12px; display: grid; gap: 6px; }
.receipt img { max-height: 420px; object-fit: contain; border: 1px solid var(--line); border-radius: 8px; background: #fff; width: 100%; }
.decide { border: 2px solid var(--brand); }
.form-inline-reject { border-top: 1px solid var(--line); padding-top: 14px; margin-top: 6px; }
.opt-edit { display: flex; gap: 8px; align-items: center; }
.opt-edit input:not([type="checkbox"]) { flex: 1; }
.qeditor fieldset[data-for] { background: color-mix(in srgb, var(--brand-soft) 45%, transparent); }

/* ads */
.ad-wrap { display: grid; gap: 4px; margin-top: 12px; }
.ad-label { font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }

@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }
@media print { .site-head, .site-foot, .ad-wrap, .submit-bar, .demo-band { display: none; } body { background: #fff; } }
.arr-back::before { content: "← "; } [dir="rtl"] .arr-back::before { content: "→ "; }
.arr-fwd::before { content: "→"; } [dir="rtl"] .arr-fwd::before { content: "←"; }
.katex { direction: ltr; unicode-bidi: isolate; }
.q-body, .fb-expl { unicode-bidi: plaintext; }