/* The scanner PWA (client/scan.tsx). Built on theme.css: its tokens and buttons. */

body.scan-app { -webkit-tap-highlight-color: transparent; }
.scan-loading { padding: 24px 16px; color: var(--muted); }

.scan-main {
  max-width: 640px;
  margin: 0 auto;
  padding: calc(env(safe-area-inset-top) + 12px) 16px calc(env(safe-area-inset-bottom) + 112px);
}
.scan-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.scan-top div { display: flex; flex-direction: column; line-height: 1.25; }
.scan-top span { color: var(--muted); font-size: 13px; }

.scan-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 16px 0 12px; }
.scan-head h1 { font-size: 24px; margin: 0; }
.scan-back { display: inline-block; margin-top: 8px; color: var(--muted); text-decoration: none; }

.scan-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 14px 16px;
  margin-bottom: 12px;
}
.scan-card h2 { font-size: 15px; margin: 0 0 6px; }
.scan-card.warn { border-color: color-mix(in srgb, var(--tempo) 45%, var(--line)); background: color-mix(in srgb, var(--tempo-tint) 45%, var(--surface)); }
.scan-card p { margin: 0 0 8px; }

.scan-list { list-style: none; margin: 0; padding: 0; }
.scan-list li { display: flex; align-items: center; gap: 10px; justify-content: space-between; min-height: 52px; border-top: 1px solid var(--line); }
.scan-list li:first-child { border-top: 0; }
.scan-list li > a:not(.chip), .scan-list li > div { flex: 1; min-width: 0; display: flex; flex-direction: column; padding: 8px 0; color: inherit; text-decoration: none; }
.scan-list li span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.scan-list.pick li { border: 0; min-height: 0; }
.btn.wide { width: 100%; justify-content: flex-start; text-align: left; padding: 10px 12px; }

.scan-form { display: flex; flex-direction: column; gap: 10px; }
.scan-form label { display: flex; flex-direction: column; gap: 4px; font-weight: 700; font-size: 14px; }
.scan-form input, .scan-form select {
  font: inherit; font-weight: 400; font-size: 16px; /* 16px: iOS doesn't zoom in */
  padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper); color: var(--ink);
}
.scan-form .row { display: flex; justify-content: space-between; gap: 8px; }
.scan-error { color: var(--bad); margin: 8px 0; }
.scan-stickers { margin: 4px 0 16px; }

.scan-fab {
  position: fixed;
  left: 50%;
  bottom: calc(env(safe-area-inset-bottom) + 20px);
  transform: translateX(-50%);
  width: 72px; height: 72px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--tempo); color: #fff;
  box-shadow: 0 10px 28px -8px rgba(191, 67, 24, 0.6);
}
.scan-fab:active { transform: translateX(-50%) scale(0.95); }

.scan-toast {
  position: fixed;
  left: 16px; right: 16px;
  bottom: calc(env(safe-area-inset-bottom) + 104px);
  max-width: 560px; margin: 0 auto;
  padding: 12px 14px;
  border-radius: var(--radius);
  background: var(--ink); color: var(--paper);
  box-shadow: var(--shadow);
  z-index: 30;
}

.scan-sheet-modal {
  position: fixed; inset: 0; z-index: 20;
  background: rgba(20, 22, 29, 0.45);
  display: flex; align-items: flex-end; justify-content: center;
  padding: 16px 16px calc(env(safe-area-inset-bottom) + 16px);
}
.scan-sheet-modal .scan-card { width: 100%; max-width: 560px; max-height: 80vh; overflow: auto; }

/* The camera, full screen. */
.scanner { position: fixed; inset: 0; background: #000; color: #fff; }
.scanner video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.scanner::after { content: ""; position: absolute; inset: 0; background: #fff; opacity: 0; pointer-events: none; transition: opacity 0.18s; }
.scanner.flash::after { opacity: 0.55; transition: none; }
.scanner-top {
  position: absolute; left: 0; right: 0; top: 0;
  display: flex; align-items: center; gap: 12px;
  padding: calc(env(safe-area-inset-top) + 10px) 16px 14px;
  background: linear-gradient(rgba(0, 0, 0, 0.6), transparent);
  font-size: 14px;
}
.scanner-top .btn { background: rgba(255, 255, 255, 0.92); color: #1f2233; border-color: transparent; }
.scanner-recent {
  position: absolute; left: 0; right: 0; bottom: 0;
  list-style: none; margin: 0;
  padding: 24px 16px calc(env(safe-area-inset-bottom) + 16px);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  display: flex; flex-direction: column; gap: 6px;
}
.scanner-recent li { display: flex; gap: 6px; align-items: baseline; font-size: 14px; }
.scanner-recent li span { margin-left: auto; opacity: 0.8; font-size: 13px; text-align: right; }
.scanner-recent li.failed span { color: #ffb4a8; opacity: 1; }
.scanner-recent li.reading span { opacity: 0.6; }

/* Review: a crop per answer, then the verdict. */
.scan-review-link { display: flex; flex-direction: column; text-decoration: none; color: inherit; border-color: color-mix(in srgb, var(--tempo) 45%, var(--line)); }
.chip.warn { --rc: var(--tempo); text-decoration: none; color: var(--tempo-ink); }
.review-head { display: flex; flex-direction: column; margin-bottom: 8px; }
/* The writing as the phone cut it out, print erased: big, it's what the teacher judges. */
.writing { display: grid; gap: 8px; }
.writing.several { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
.writing img { width: 100%; max-height: 50vh; object-fit: contain; display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); }
.crop { width: 100%; max-height: 40vh; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; }
.crop svg { width: 100%; height: 100%; display: block; }
.review-item .row { display: flex; gap: 8px; justify-content: flex-end; }
.review-item .row .btn { min-width: 84px; justify-content: center; padding: 10px 14px; }

/* Results: one series, every answer. */
.results-page { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.result-row { border-top: 1px solid var(--line); padding: 12px 0; display: flex; flex-direction: column; gap: 8px; }
.result-row:first-of-type { border-top: 0; }
.result-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.result-row .crop { max-height: 28vh; }
.result-facts { display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; margin: 0; }
.result-facts dt { color: var(--muted); }
.result-facts dd { margin: 0; font-weight: 700; overflow-wrap: anywhere; }
.reflection-facts dd { font-weight: 400; }
.result-row .row { display: flex; gap: 8px; justify-content: flex-end; }
.chip.result-good { --rc: var(--ok); }
.chip.result-bad { --rc: var(--bad); }
.chip.result-open, .chip.result-half { --rc: var(--tempo); }

/* Scan mode: one page to help a pupil, or a stack. */
.scanner-mode {
  position: absolute; left: 50%; transform: translateX(-50%);
  top: calc(env(safe-area-inset-top) + 58px);
  display: flex; padding: 3px; gap: 2px;
  background: rgba(0, 0, 0, 0.55); border-radius: 999px;
}
.scanner-mode button {
  font: inherit; font-size: 14px; font-weight: 700; color: #fff;
  background: transparent; border: 0; border-radius: 999px; padding: 7px 16px;
}
.scanner-mode button.on { background: #fff; color: #1f2233; }

/* A scanned page: each answer marked, to help the pupil. */
.scan-page-head { display: flex; flex-direction: column; gap: 2px; margin: 12px 0 12px; }
.scan-page-head h1 { font-size: 21px; margin: 0; line-height: 1.25; }
.mark-list { list-style: none; margin: 0 0 12px; padding: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.mark-list li + li { border-top: 1px solid var(--line); }
.mark-row { display: flex; align-items: center; gap: 10px; width: 100%; padding: 10px 12px; font: inherit; text-align: left; background: none; border: 0; color: inherit; }
.mark-text { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mark-word { font-size: 13px; color: var(--muted); white-space: nowrap; }
.mark-row.m-wrong .mark-word, .mark-word.m-wrong { color: var(--bad); font-weight: 700; }
.mark-row.m-unclear .mark-word, .mark-word.m-unclear { color: var(--tempo-ink); font-weight: 700; }
.mark-icon {
  flex: none; width: 26px; height: 26px; border-radius: 50%;
  display: inline-grid; place-items: center; font-weight: 700; font-size: 14px;
  background: var(--paper-2, #eee); color: var(--muted);
}
.mark-icon.m-right, .mark-icon.m-partial { background: color-mix(in srgb, var(--ok) 18%, var(--surface)); color: var(--ok); }
.mark-icon.m-wrong { background: var(--bad); color: #fff; }
.mark-icon.m-unclear { background: var(--tempo); color: #fff; }
.mark-strip { display: flex; flex-wrap: wrap; gap: 4px; margin: 6px 0; }
.mark-strip .mark-icon { width: 22px; height: 22px; font-size: 12px; }
.page-card { display: flex; flex-direction: column; text-decoration: none; color: inherit; }

.page-image { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 12px; }
.page-image svg { display: block; width: 100%; height: auto; }
.mark-field .hit { fill: transparent; stroke: none; cursor: pointer; }
.mark-field.m-wrong .hit { fill: rgba(179, 38, 30, 0.07); stroke: rgba(179, 38, 30, 0.5); stroke-width: 0.4; }
.mark-field.m-unclear .hit { fill: rgba(232, 89, 42, 0.07); stroke: rgba(232, 89, 42, 0.5); stroke-width: 0.4; }
.mark-region { fill: none; stroke-width: 0.7; }
.mark-region.m-right, .mark-region.m-partial { stroke: #2f7a52; }
.mark-region.m-wrong { stroke: #b3261e; stroke-width: 1; fill: rgba(179, 38, 30, 0.12); }
.mark-region.m-unclear { stroke: #e8592a; stroke-dasharray: 1.2 0.8; }
.mark-region.m-empty { stroke: #8a8f9c; stroke-dasharray: 0.6 0.8; }
.mark-region.m-open { stroke: #1d6b87; }
.mark-icon.m-reading { animation: mark-reading 1.2s ease-in-out infinite; }
@keyframes mark-reading { 50% { opacity: 0.35; } }
.mark-detail { display: flex; flex-direction: column; gap: 10px; }
.mark-detail .crop { max-height: 36vh; }
.mark-detail .row { display: flex; gap: 8px; justify-content: flex-end; }
.btn.wide-center { display: flex; justify-content: center; width: 100%; padding: 12px; margin-bottom: 12px; }
.mark-detail .btn.wide-center { margin: 0; }
.brick-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 14px; }
.brick-list li { display: flex; align-items: center; gap: 6px; }
.brick-list .mark-icon { width: 20px; height: 20px; font-size: 11px; }
.verdict { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 3px; gap: 3px; background: var(--paper); }
.seg button { font: inherit; font-weight: 700; font-size: 14px; padding: 8px 16px; border: 0; border-radius: 999px; background: transparent; color: var(--ink); }
.seg button.on.right { background: var(--ok); color: #fff; }
.seg button.on.wrong { background: var(--bad); color: #fff; }

/* The pupils' app (client/student.tsx, docs/self-scan.md): bigger type, one thing at a time. */
.student-app .scan-main.zelf { padding-bottom: calc(env(safe-area-inset-bottom) + 32px); font-size: 17px; }
.zelf h1 { font-size: 26px; margin: 12px 0 6px; }
.zelf .lead { margin-bottom: 16px; }
.zelf-go { display: flex; justify-content: center; width: 100%; padding: 14px; margin-top: 20px; font-size: 18px; background: var(--tempo); border-color: var(--tempo); color: #fff; }

.zelf-scan { position: fixed; inset: 0; background: #000; color: #fff; }
.zelf-top {
  position: absolute; left: 0; right: 0; top: 0; z-index: 1;
  display: flex; align-items: baseline; gap: 12px;
  padding: calc(env(safe-area-inset-top) + 12px) 16px 16px;
  background: linear-gradient(rgba(0, 0, 0, 0.6), transparent);
}
.zelf-top span { opacity: 0.85; }
.zelf-camera { position: relative; overflow: hidden; background: #000; color: #fff; }
.zelf-scan .zelf-camera { position: absolute; inset: 0; }
.zelf-link .zelf-camera { aspect-ratio: 4 / 3; border-radius: var(--radius-sm, 10px); margin: 12px 0 16px; }
.zelf-camera video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.zelf-camera::after { content: ""; position: absolute; inset: 0; background: #fff; opacity: 0; pointer-events: none; transition: opacity 0.18s; }
.zelf-camera.flash::after { opacity: 0.55; transition: none; }
.zelf-camera-status {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 24px 16px calc(env(safe-area-inset-bottom) + 18px);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  font-size: 17px; text-align: center;
}

.zelf-code label { display: block; font-weight: 700; margin-bottom: 6px; }
.zelf-code div { display: flex; gap: 8px; }
.zelf-code input { flex: 1; min-width: 0; font: 700 22px/1.2 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; padding: 10px 12px; border: 1px solid var(--line-2); border-radius: var(--radius-sm, 10px); background: var(--surface); color: var(--ink); }

.zelf-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm, 10px); padding: 14px; margin: 14px 0; }
.zelf-item h2 { font-size: 17px; margin: 0 0 10px; display: flex; gap: 10px; align-items: baseline; }
.zelf-nr { flex: none; display: inline-grid; place-items: center; min-width: 28px; height: 28px; border-radius: 50%; background: var(--paper-2); font-size: 15px; }
.zelf-region { display: grid; gap: 8px; margin-top: 8px; }
.zelf-region img { width: 100%; max-height: 140px; object-fit: contain; background: #fff; border: 1px solid var(--line); border-radius: 6px; }
.zelf-region input { font: 700 24px/1.2 var(--body); padding: 10px 12px; border: 2px solid var(--line-2); border-radius: var(--radius-sm, 10px); background: var(--surface); color: var(--ink); }
.zelf-region input:focus { border-color: var(--focus); outline: none; }

.zelf-marks { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.zelf-marks li { display: flex; gap: 12px; align-items: flex-start; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm, 10px); padding: 12px 14px; }
.zelf-marks li > span:last-child { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.zelf-icon { flex: none; display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; font-weight: 700; background: var(--paper-2); color: var(--muted); }
.zelf-marks .m-right .zelf-icon { background: var(--ok); color: #fff; }
.zelf-marks .m-wrong .zelf-icon { background: var(--tempo); color: #fff; }
.zelf-marks .m-partial .zelf-icon { background: var(--tempo-tint); color: var(--tempo-ink); }
.zelf-hint { margin-top: 6px; padding: 8px 10px; border-radius: 8px; background: var(--tempo-tint); color: var(--ink); font-size: 15px; }
.review-fix { margin: 8px 0 0; padding: 6px 10px; border-radius: 6px; background: var(--tempo-tint); }