/*
 * Contao School Test, frontend. Colors can be adjusted with the custom properties.
 */
.school-test {
    --st-accent: #1d3f8f;
    --st-line: #d5dceb;
    --st-soft: #f4f6fb;
    --st-ok: #1d7f48;
    --st-bad: #c8322f;
    --st-warn: #9a6100;
    font-variant-numeric: tabular-nums;
    max-width: 860px;
}

.school-test .st-card,
.school-test .st-test { display: flex; flex-direction: column; gap: 12px; }
.school-test .st-card { border: 1px solid var(--st-line); border-radius: 14px; padding: 22px; background: #fff; }
.school-test h2 { margin: 0; }
.school-test p { margin: 0; }
.school-test .st-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.school-test .st-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.school-test input { font: inherit; color: inherit; }
.school-test, .school-test * { box-sizing: border-box; }
/* Width: characters + letter spacing + padding + border, independent of the site's font */
.school-test .st-code { font-size: 1.6rem; font-variant-numeric: tabular-nums; letter-spacing: .2em; width: calc(5ch + 1.2em + 28px); text-align: center; padding: 8px 12px; border: 2px solid var(--st-line); border-radius: 10px; }
.school-test .st-resume { width: calc(6 * .8em + 1.4em + 28px); letter-spacing: .15em; text-transform: uppercase; }
.school-test .st-btn { font: inherit; font-weight: 600; padding: 10px 20px; border: 0; border-radius: 10px; background: var(--st-accent); color: #fff; cursor: pointer; }
.school-test .st-btn2 { background: #fff; color: var(--st-accent); border: 2px solid var(--st-accent); padding: 8px 18px; }
.school-test .st-link { background: none; border: 0; padding: 0; color: var(--st-accent); text-decoration: underline; cursor: pointer; font: inherit; }
.school-test input:focus-visible,
.school-test button:focus-visible { outline: 3px solid var(--st-accent); outline-offset: 2px; }

.school-test [hidden],
.school-test .st-msg:empty { display: none !important; }
.school-test .st-msg { padding: 10px 14px; border-radius: 10px; background: var(--st-soft); }
.school-test .st-msg.bad { background: #fbe6e5; color: var(--st-bad); }
.school-test .st-msg.warn { background: #fff2d6; color: var(--st-warn); }

.school-test .st-locked { border-left: 6px solid var(--st-bad); }
.school-test .st-finished { border-left: 6px solid var(--st-ok); }
.school-test .st-score { font-size: 1.3rem; }
.school-test .st-score span { font-size: 2.6rem; font-weight: 700; color: var(--st-accent); }

.school-test .st-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; border-bottom: 2px solid currentColor; padding-bottom: 8px; position: sticky; top: 0; background: #fff; z-index: 2; }
.school-test .st-status { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.school-test .st-clock { font-size: 1.3rem; font-weight: 700; color: var(--st-accent); white-space: nowrap; }
.school-test .st-clock.warn { color: var(--st-warn); }
.school-test .st-clock.bad { color: var(--st-bad); }
.school-test .st-saved { font-size: .85rem; color: var(--st-ok); white-space: nowrap; }
.school-test .st-saved.busy { color: #777; }
.school-test .st-saved.bad { color: var(--st-bad); }
.school-test .st-warnbox { padding: 8px 12px; background: #fff2d6; border-radius: 8px; font-size: .92rem; }

.school-test .st-section h3 { display: flex; align-items: baseline; gap: 10px; margin: 18px 0 2px; padding-bottom: 3px; border-bottom: 1.5px solid currentColor; }
.school-test .st-letter { background: #111; color: #fff; border-radius: 4px; padding: 0 8px; }
.school-test .st-pts { margin-left: auto; font-size: .85rem; font-weight: 400; }
.school-test .st-instr { font-size: .9rem; font-style: italic; color: #555; margin: 2px 0 6px; }
.school-test .st-tasks { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.school-test .st-task { display: flex; gap: 8px; align-items: center; padding: 8px 0; border-bottom: 1px dotted #bbb; }
.school-test .st-nr { font-weight: 700; min-width: 1.6em; }
/* Never break inside a number or an expression like "8 · 10" */
.school-test .st-q b { white-space: nowrap; }
.school-test .st-body { flex: 1; line-height: 2.1; }
/* One task per line: question and answer field stay on the same line */
.school-test .st-task:not(.st-wide) .st-body { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 12px; }
.school-test .st-task:not(.st-wide) .st-q { white-space: nowrap; }
.school-test .st-feedback { flex-basis: 100%; }
.school-test .st-num input,
.school-test .st-frac input,
.school-test .st-in input { width: 7ch; text-align: center; padding: 3px 6px; border: 2px solid var(--st-line); border-radius: 8px; background: var(--st-soft); }
.school-test .st-num,
.school-test .st-frac { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.school-test .st-frac .st-w { width: 4ch; }
.school-test .st-stack { display: inline-flex; flex-direction: column; align-items: center; gap: 3px; vertical-align: middle; }
.school-test .st-stack input { width: 5ch; padding: 1px 4px; }
.school-test .st-bar { width: 100%; height: 2px; background: currentColor; }
.school-test .st-suffix,
.school-test .st-unit { color: #555; font-size: .9em; }
.school-test input:focus { border-color: var(--st-accent); outline: none; }

.school-test .fr { display: inline-flex; flex-direction: column; vertical-align: middle; text-align: center; line-height: 1.05; margin: 0 .12em; font-size: .92em; }
.school-test .fr > span { padding: 0 .15em; }
.school-test .fr .nu { border-bottom: .09em solid currentColor; }
.school-test .mx { white-space: nowrap; }

.school-test .st-tblwrap { overflow-x: auto; }
.school-test .st-table { border-collapse: collapse; line-height: 1.3; }
.school-test .st-table th,
.school-test .st-table td { border: 1.5px solid #333; padding: 5px 6px; text-align: center; white-space: nowrap; }
.school-test .st-table th { background: #f2f2f2; text-align: left; font-weight: 400; }
.school-test .st-table .st-ref { background: #e2e2e2; font-weight: 700; }
.school-test .st-table .st-in input { width: 6ch; }

.school-test .st-submit { margin-top: 18px; display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
.school-test .st-confirm { padding: 12px 14px; border-radius: 10px; background: var(--st-soft); display: flex; flex-direction: column; gap: 10px; }

/* Very narrow screens: a long question may wrap rather than overflow */
@media (max-width: 560px) {
    .school-test .st-task:not(.st-wide) .st-q { white-space: normal; }
}

/* Language choice */
.school-test .st-lang { display: flex; flex-wrap: wrap; gap: 6px; }
.school-test .st-langbtn { font: inherit; font-size: .9rem; padding: 5px 12px; border: 2px solid var(--st-line); border-radius: 99px; background: #fff; color: inherit; cursor: pointer; }
.school-test .st-langbtn.on { border-color: var(--st-accent); background: var(--st-accent); color: #fff; font-weight: 600; }

/* Practice mode */
.school-test .st-choose { display: flex; flex-direction: column; gap: 6px; }
.school-test .st-chooselabel { font-weight: 700; margin-top: 4px; }
.school-test .st-options { display: flex; flex-wrap: wrap; gap: 6px; }
.school-test .st-opt { font: inherit; padding: 7px 14px; border: 2px solid var(--st-line); border-radius: 10px; background: #fff; color: inherit; cursor: pointer; }
.school-test .st-opt.on { border-color: var(--st-accent); background: var(--st-accent); color: #fff; font-weight: 600; }
.school-test .st-optnum { min-width: 3em; text-align: center; }
.school-test .st-msg.ok { background: #e2f4e9; color: var(--st-ok); }
.school-test .st-task.st-ok { background: linear-gradient(90deg, #e2f4e9, transparent 70%); }
.school-test .st-task.st-bad { background: linear-gradient(90deg, #fbe6e5, transparent 70%); }
.school-test .st-feedback { font-size: .88rem; line-height: 1.45; margin: 2px 0 4px; }
.school-test .st-ok .st-fhead { color: var(--st-ok); font-weight: 700; }
.school-test .st-bad .st-fhead { color: var(--st-bad); }
.school-test .st-way { color: #555; }
.school-test .st-table .st-cell-ok { background: #e2f4e9; }
.school-test .st-table .st-cell-bad { background: #fbe6e5; }
.school-test .st-sol { font-weight: 700; color: var(--st-ok); font-size: .9em; }
.school-test .st-score-small { font-size: 1.3rem; font-weight: 700; color: var(--st-accent); white-space: nowrap; }

/* Drawing board (reflections, rotations, translations) */
.school-test .st-board { margin-top: 8px; display: flex; flex-direction: column; gap: 8px; }
.school-test .st-chips { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.school-test .st-chip { font: inherit; font-weight: 600; min-width: 3em; padding: 5px 10px; border: 2px solid var(--st-line); border-radius: 999px; background: #fff; color: inherit; cursor: pointer; }
.school-test .st-chip.set { border-color: #e08a1e; color: #a35a00; }
.school-test .st-chip.on { border-color: var(--st-accent); background: var(--st-accent); color: #fff; }
.school-test .st-clear { margin-left: auto; font-size: .88rem; }
.school-test .st-svg { display: block; width: 100%; max-width: 680px; height: auto; background: #fff; border: 1px solid var(--st-line); border-radius: 8px; cursor: crosshair; touch-action: manipulation; user-select: none; -webkit-user-select: none; }
.school-test .st-board-done .st-svg { cursor: default; }
.school-test .st-svg text { font: 600 14px system-ui, sans-serif; }
.school-test .st-gl { stroke: #dfe5f0; stroke-width: 1; }
.school-test .st-axis { stroke: #7a3db8; stroke-width: 2.5; }
.school-test .st-vec { stroke: #7a3db8; stroke-width: 2.5; }
.school-test .st-turn { fill: none; stroke: #7a3db8; stroke-width: 2; }
.school-test .st-arrowhead { fill: #7a3db8; }
.school-test .st-mark { fill: #7a3db8; font-style: italic; }
.school-test .st-z { fill: #7a3db8; }
.school-test .st-fig { fill: rgba(29, 63, 143, .14); stroke: var(--st-accent); stroke-width: 2; stroke-linejoin: round; }
.school-test .st-figpt { fill: var(--st-accent); }
.school-test .st-figlbl { fill: var(--st-accent); }
.school-test .st-img { fill: rgba(224, 138, 30, .12); stroke: #e08a1e; stroke-width: 2; stroke-linejoin: round; }
.school-test .st-imgpt { fill: #e08a1e; stroke: #fff; stroke-width: 2; }
.school-test .st-imgpt.on { fill: var(--st-accent); }
.school-test .st-imgpt.ok { fill: var(--st-ok); }
.school-test .st-imgpt.bad { fill: var(--st-bad); }
.school-test .st-imglbl { fill: #a35a00; }
.school-test .st-ghost { fill: none; stroke: var(--st-ok); stroke-width: 2.5; stroke-dasharray: 7 5; }
.school-test .st-hover { fill: none; stroke: var(--st-accent); stroke-width: 2; opacity: .55; pointer-events: none; }

/* Angles: sketch and one field per angle */
.school-test .st-angfig { margin: 8px 0; }
.school-test .st-angfig svg { display: block; width: 100%; max-width: 560px; height: auto; background: #fff; border: 1px solid var(--st-line); border-radius: 8px; }
.school-test .st-angins { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; }
.school-test .st-angin { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; padding: 2px 4px; border-radius: 8px; }
.school-test .st-angin span:first-child { font-weight: 700; }
.school-test .st-angin input { width: 6ch; }
.school-test .st-angin.st-cell-ok { background: #e2f4e9; }
.school-test .st-angin.st-cell-bad { background: #fbe6e5; }
.school-test .st-steps { margin: 4px 0 0; padding-left: 1.3em; }
.school-test .st-steps li { margin: 2px 0; }

/* Equations */
.school-test .st-eq { display: inline-block; white-space: nowrap; max-width: 100%; overflow-x: auto; vertical-align: middle; font-size: 1.08em; padding: 2px 0; }
.school-test .st-eq sup { font-size: .7em; }
.school-test .st-rat input { width: 8ch; }
.school-test .st-eqsteps { border-collapse: collapse; margin: 6px 0 2px; white-space: nowrap; }
.school-test .st-eqsteps td { padding: 2px 6px; vertical-align: middle; }
.school-test .st-eqsteps .st-l { text-align: right; }
.school-test .st-eqsteps .st-op { color: var(--st-accent); padding-left: 14px; }
.school-test .st-eqsteps .st-final td { font-weight: 700; }
.school-test .st-way:has(table) { display: block; overflow-x: auto; }