@font-face{font-family:Instrument Sans;font-style:normal;font-display:swap;font-weight:600;src:url(/assets/instrument-sans-latin-600-normal-B7fBEWYG.woff2) format("woff2"),url(/assets/instrument-sans-latin-600-normal-B9e8oLYv.woff) format("woff")}@font-face{font-family:Instrument Sans;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/instrument-sans-latin-700-normal-CYfAanHo.woff2) format("woff2"),url(/assets/instrument-sans-latin-700-normal-DfAjL1vF.woff) format("woff")}@font-face{font-family:Atkinson Hyperlegible Next;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/atkinson-hyperlegible-next-latin-400-normal-FfmJh7DR.woff2) format("woff2"),url(/assets/atkinson-hyperlegible-next-latin-400-normal-DPp7N0cD.woff) format("woff")}@font-face{font-family:Atkinson Hyperlegible Next;font-style:normal;font-display:swap;font-weight:500;src:url(/assets/atkinson-hyperlegible-next-latin-500-normal-gHP6TDRs.woff2) format("woff2"),url(/assets/atkinson-hyperlegible-next-latin-500-normal-B0CYqHl3.woff) format("woff")}@font-face{font-family:Atkinson Hyperlegible Next;font-style:normal;font-display:swap;font-weight:600;src:url(/assets/atkinson-hyperlegible-next-latin-600-normal-BBuhw47K.woff2) format("woff2"),url(/assets/atkinson-hyperlegible-next-latin-600-normal-BhgCag5w.woff) format("woff")}@font-face{font-family:Atkinson Hyperlegible Next;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/atkinson-hyperlegible-next-latin-700-normal-Dpiyiu63.woff2) format("woff2"),url(/assets/atkinson-hyperlegible-next-latin-700-normal-C2qZD_Q9.woff) format("woff")}@font-face{font-family:JetBrains Mono;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/jetbrains-mono-latin-700-normal-BYuf6tUa.woff2) format("woff2"),url(/assets/jetbrains-mono-latin-700-normal-D3wTyLJW.woff) format("woff")}:root{--bg: #f7f7f5;--surface: #ffffff;--text: #1d1d1f;--muted: #6b6b70;--border: #dedee2;--accent: #1f5fbf;--accent-text: #ffffff;--ok: #1d7a3e;--ok-bg: #e7f5ec;--error: #b42318;--error-bg: #fdecea;--warn: #9a5b00;--selected: #e3edfb;--radius: 8px;color-scheme:light;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.5}@media(prefers-color-scheme:dark){:root{--bg: #161618;--surface: #1f1f22;--text: #ececee;--muted: #a0a0a8;--border: #36363c;--accent: #5b9bff;--accent-text: #0b0b0c;--ok: #6fd393;--ok-bg: #16301f;--error: #ff8a80;--error-bg: #3a1a18;--warn: #f3b35c;--selected: #20304a;color-scheme:dark}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}a{color:var(--accent)}h1{font-size:1.5rem;margin:1.2rem 0 .6rem}h2{font-size:1.2rem;margin:1.4rem 0 .5rem}h3{margin:0 0 .3rem;font-size:1.05rem}code{font-size:.9em}.wrap{word-break:break-all}input,select,textarea,button{font:inherit;color:inherit;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:.45rem .65rem}textarea{width:100%;resize:vertical}label{display:flex;flex-direction:column;gap:.25rem;font-size:.95rem}label.inline,.checks label{flex-direction:row;align-items:center;gap:.4rem}input[type=checkbox],input[type=radio]{width:1.05rem;height:1.05rem}button{cursor:pointer}button:disabled{opacity:.55;cursor:default}button.primary,a.button.primary{background:var(--accent);color:var(--accent-text);border-color:var(--accent)}button.danger{color:var(--error)}button.link{border:none;background:none;padding:0;color:var(--accent);text-decoration:underline}button.link.danger{color:var(--error)}a.button{display:inline-block;padding:.45rem .9rem;border-radius:var(--radius);border:1px solid var(--border);text-decoration:none;color:var(--text)}.page{max-width:1100px;margin:0 auto;padding:0 16px 48px}.page.narrow{max-width:820px}.center-card{max-width:420px;margin:8vh auto;padding:1.5rem;background:var(--surface);border:1px solid var(--border);border-radius:12px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;margin:.6rem 0}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:.8rem}.link-card{text-decoration:none;color:inherit}.link-card:hover{border-color:var(--accent)}.stack{display:flex;flex-direction:column;gap:.6rem}.row{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap}.row.spread{justify-content:space-between}.row.wrap{flex-wrap:wrap}.grow{flex:1;min-width:0}.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.6rem}.checks{display:flex;flex-wrap:wrap;gap:.4rem 1.2rem}.narrow-input{width:5.5rem}.title-input{font-size:1.2rem;font-weight:600}.small{font-size:.85rem}.pre{white-space:pre-wrap}.error{color:var(--error);background:var(--error-bg);padding:.5rem .7rem;border-radius:var(--radius)}.error.small{padding:0;background:none}.ok{color:var(--ok);background:var(--ok-bg);padding:.5rem .7rem;border-radius:var(--radius)}.sticky{position:sticky;top:.5rem;z-index:5}.late{color:var(--warn)}.badge{margin-left:.4rem;font-size:.75rem;padding:.1rem .4rem;border-radius:99px;background:var(--error-bg);color:var(--error)}.notice{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--accent);padding:.8rem 1rem;border-radius:var(--radius);margin-bottom:1rem}.code{font-size:1.3rem;letter-spacing:.2em}.divider{text-align:center;color:var(--muted);margin:1rem 0;font-size:.9rem}.files{padding-left:1.1rem}.files li{margin:.2rem 0}.file-drop{border:2px dashed var(--border);border-radius:var(--radius);padding:1rem;text-align:center;cursor:pointer}.file-drop input{margin:0 auto}.topbar{display:flex;align-items:center;gap:1rem;padding:.6rem 16px;background:var(--surface);border-bottom:1px solid var(--border);flex-wrap:wrap}.topbar .brand{font-weight:700;text-decoration:none;color:var(--text)}.topbar nav{display:flex;gap:.9rem;flex:1;flex-wrap:wrap}.topbar nav a{text-decoration:none;color:var(--muted)}.topbar nav a.active{color:var(--text);font-weight:600}.class-switch{display:flex;align-items:center;gap:.4rem}.table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}.table th,.table td{text-align:left;padding:.5rem .6rem;border-bottom:1px solid var(--border);vertical-align:top}.scroll-x{overflow-x:auto}.gradebook th,.gradebook td{white-space:nowrap}.rubric{width:100%;border-collapse:collapse;margin:.5rem 0}.rubric th,.rubric td{border:1px solid var(--border);padding:.5rem;vertical-align:top;text-align:left}.rubric th{width:24%}.rubric td.selected{background:var(--selected);outline:2px solid var(--accent);outline-offset:-2px}.rubric.clickable td{cursor:pointer}.rubric textarea{margin-top:.4rem;font-weight:400}.crit-comment{font-weight:400;margin-top:.4rem;font-size:.9rem}.crit-edit{border-top:1px solid var(--border);padding-top:.8rem;display:flex;flex-direction:column;gap:.4rem}.levels{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:.5rem}.level{display:flex;flex-direction:column;gap:.3rem}.level input:first-child{min-width:0;flex:1}.exam{display:flex;flex-direction:column;height:100vh;-webkit-user-select:none;user-select:none}.exam textarea,.exam input{-webkit-user-select:text;user-select:text}.exam-header{display:flex;align-items:center;gap:1rem;padding:.6rem 16px;border-bottom:1px solid var(--border);background:var(--surface)}.exam-header h2{margin:0;flex:1;font-size:1.1rem}.clock{font-variant-numeric:tabular-nums;font-size:1.3rem;font-weight:700}.clock.low{color:var(--error)}.save{font-size:.85rem;color:var(--muted)}.save.offline{color:var(--error)}.exam-body{flex:1;display:grid;grid-template-columns:1fr;min-height:0}.exam-body.with-notes{grid-template-columns:minmax(320px,1fr) minmax(320px,1fr)}.exam-questions{overflow-y:auto;padding:1rem 16px}.exam-notes{border-left:1px solid var(--border);display:flex;flex-direction:column;min-height:0}.instructions{background:var(--surface);border:1px solid var(--border);padding:.7rem;border-radius:var(--radius)}.qnav{display:flex;flex-wrap:wrap;gap:.3rem;margin-bottom:1rem}.qnav button{width:2.4rem;padding:.3rem 0}.qnav button.done{background:var(--ok-bg)}.qnav button.active{outline:2px solid var(--accent)}.question .prompt{font-size:1.05rem;white-space:pre-wrap}.choices{display:flex;flex-direction:column;gap:.4rem;margin:.8rem 0}.choice{flex-direction:row;align-items:flex-start;gap:.6rem;padding:.5rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);cursor:pointer}.question input:not([type]),.question .numeric{width:100%;max-width:420px;margin:.8rem 0}.question textarea{margin:.8rem 0}.tabs{display:flex;gap:.2rem;padding:.4rem;overflow-x:auto;border-bottom:1px solid var(--border)}.tabs button{white-space:nowrap;font-size:.85rem}.tabs button.active{background:var(--selected);border-color:var(--accent)}.pdf-viewer{flex:1;display:flex;flex-direction:column;min-height:0}.pdf-toolbar{display:flex;gap:.4rem;align-items:center;padding:.4rem;border-bottom:1px solid var(--border);flex-wrap:wrap}.pdf-toolbar input{width:4rem}.pdf-page{flex:1;overflow:auto;padding:.5rem;background:#888}.pdf-page canvas{display:block;margin:0 auto;background:#fff}.modal{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:grid;place-items:center;z-index:20;padding:16px}.modal-card{background:var(--surface);padding:1.2rem;border-radius:12px;max-width:440px}.review-q{border-top:1px solid var(--border);padding-top:.6rem}.big{font-size:1.8rem;font-weight:700}.meter-row{display:inline-flex;align-items:center;gap:.5rem}.meter{display:inline-block;width:7rem;height:.5rem;background:var(--border);border-radius:99px;overflow:hidden}.meter>span{display:block;height:100%;background:var(--accent)}fieldset{border:1px solid var(--border);border-radius:var(--radius);padding:.8rem}legend{padding:0 .3rem;font-weight:600}.materials{list-style:none;padding:0;margin:0}.material{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;padding:.35rem 0;border-bottom:1px solid var(--border)}.material:last-child{border-bottom:none}.material .kind{font-size:.7rem;font-weight:700;min-width:3.2rem;text-align:center;padding:.1rem .3rem;border-radius:4px;background:var(--selected);color:var(--accent)}label.button{display:inline-block;cursor:pointer;padding:.45rem .9rem;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}label.button:hover{border-color:var(--accent)}.concept{border-left:4px solid var(--accent)}.concept .example{background:var(--bg);border-radius:var(--radius);padding:.6rem .8rem;white-space:pre-wrap}.choice-btn{display:block;width:100%;text-align:left;padding:.7rem .9rem;margin:.35rem 0;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);cursor:pointer;font:inherit}.choice-btn:hover:not(:disabled){border-color:var(--accent)}.choice-btn.wrong{border-color:var(--error);background:var(--error-bg)}.choice-btn:disabled{cursor:default}.play-stats{display:flex;gap:1.2rem;flex-wrap:wrap;color:var(--muted);font-size:.9rem}.play-stats b{color:var(--text)}.progress{height:.4rem;background:var(--border);border-radius:99px;overflow:hidden;margin:.5rem 0 1rem}.progress>span{display:block;height:100%;background:var(--accent);transition:width .2s ease}.group-card.mine{border-color:var(--accent)}@media(prefers-reduced-motion:reduce){.progress>span{transition:none}}@media(max-width:760px){.exam{height:auto;min-height:100vh}.exam-body.with-notes{grid-template-columns:1fr}.exam-notes{border-left:none;border-top:1px solid var(--border);min-height:70vh}.rubric th{width:auto}}.table tr.highlight td{background:color-mix(in srgb,var(--accent) 8%,transparent)}.camera-preview{width:100%;max-width:320px;aspect-ratio:4 / 3;border-radius:var(--radius);overflow:hidden;background:#000}.camera-preview video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}.camera-preview.mini{width:72px;flex:none;border-radius:6px}.camera-check ul{margin:0;padding-left:1.1rem}.warning{color:var(--warn);border:1px solid currentColor;padding:.5rem .7rem;border-radius:var(--radius);margin:.5rem 16px}.photo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.6rem}.photo-grid figure{margin:0}.photo-grid img{width:100%;border-radius:6px;display:block;background:#000;aspect-ratio:4 / 3;object-fit:cover}.photo-grid figure.flag img{outline:3px solid var(--error)}.photo-grid figure.kept img{box-shadow:0 0 0 3px var(--accent)}.keep-toggle{display:inline-flex;gap:.3rem;align-items:center}.photo-grid figcaption{font-size:.8rem;color:var(--muted)}.segmented{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.segmented button{border:none;border-radius:0;background:var(--surface);padding:.55rem}.segmented button.active{background:var(--accent);color:var(--accent-text)}.code-box{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:1.3rem;letter-spacing:.15em;font-weight:600}.live-summary{display:flex;flex-wrap:wrap;gap:.5rem 1.25rem;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:.6rem .9rem;margin:.5rem 0}.live-summary .live-bad{color:var(--error)}.live-summary label{margin-left:auto;display:inline-flex;align-items:center;gap:.4rem;font-size:.9rem}.live-grid{list-style:none;padding:0;margin:.75rem 0;display:grid;gap:.75rem;grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}.live-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}.live-card.level-2{border-color:var(--error);box-shadow:0 0 0 1px var(--error)}.live-card.level-1{border-color:var(--warn)}.live-photo{position:relative;aspect-ratio:4 / 3;background:var(--bg);display:grid;place-items:center}.live-photo img{width:100%;height:100%;object-fit:cover;display:block}.live-age{position:absolute;right:.35rem;bottom:.35rem;font-size:.72rem;padding:.05rem .4rem;border-radius:99px;background:#0009;color:#fff}.live-body{padding:.55rem .7rem .7rem;display:grid;gap:.15rem}.live-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.live-chip{font-size:.75rem;padding:.1rem .5rem;border-radius:99px;white-space:nowrap;background:var(--bg);color:var(--muted)}.live-chip.chip-2{background:var(--error-bg);color:var(--error);font-weight:600}.live-chip.chip-1{color:var(--warn);border:1px solid currentColor}.live-flags{color:var(--warn)}.live-chip.chip-ok{background:var(--ok-bg);color:var(--ok)}.id-step,.id-photo-step{border-top:1px solid var(--border);padding-top:.75rem}.id-check{border:1px solid var(--border);border-radius:var(--radius);padding:.75rem}.id-check h3{margin:0;font-size:1rem}.id-pair{display:grid;grid-template-columns:repeat(2,minmax(0,220px));gap:.75rem}.id-pair figure{margin:0}.id-pair img,.id-missing{width:100%;aspect-ratio:4 / 3;object-fit:cover;border-radius:6px;display:grid;place-items:center;background:var(--bg)}.id-pair figcaption{font-size:.8rem;color:var(--muted)}.live-id{width:28px;height:28px;border-radius:50%;object-fit:cover;flex:none;border:1px solid var(--border)}.live-who{gap:.4rem;min-width:0;flex-wrap:nowrap}.numeric-hint{margin:.6rem 0 0;font-weight:600}.numeric-row{align-items:center;gap:.5rem;flex-wrap:nowrap}.question .numeric-row .numeric{margin:.4rem 0;max-width:300px}.numeric-row .unit{font-weight:600;white-space:nowrap}.choices.tf{flex-direction:row;gap:1rem}.choices.tf .choice{min-width:8rem}.numeric-key{display:grid;gap:.6rem}.numeric-key .row{flex-wrap:wrap}:root{--ballpoint: #2347a6;--ballpoint-hover: #1b3a8c;--ballpoint-soft: #e8edfa;--margin-red: #d63b2f;--on-red: #ffffff;--graphite: #8c93a8;--rail: #2347a6;--on-rail: #ffffff;--on-rail-muted: #c9d3f0;--rail-hover: rgb(255 255 255 / .1);--rail-active: rgb(255 255 255 / .16);--camera: #1f2333;--bg: #f5f6fa;--surface: #ffffff;--sunken: #eceef4;--text: #1a1d29;--muted: #4a5064;--subtle: #5f6579;--border: #e1e4ec;--border-strong: #b8bdcb;--accent: var(--ballpoint);--accent-text: #ffffff;--ok: #0e6b41;--ok-bg: #e2f4ea;--error: #b42318;--error-bg: #fde8e6;--warn: #8a5000;--warn-bg: #fff1d6;--selected: var(--ballpoint-soft);--focus: #2347a6;--pin: #2347a6;--pin-dot: #d63b2f;--radius: 10px;--radius-card: 16px;--shadow-1: 0 1px 2px rgb(26 29 41 / .06), 0 2px 8px rgb(26 29 41 / .04);--shadow-2: 0 2px 4px rgb(26 29 41 / .06), 0 12px 32px rgb(26 29 41 / .1);--ease-out: cubic-bezier(.23, 1, .32, 1);--ease-move: cubic-bezier(.77, 0, .175, 1);--dur-instant: 80ms;--dur-quick: .14s;--dur-base: .22s;--dur-page: .28s;--font-head: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;--font-body: "Atkinson Hyperlegible Next", system-ui, -apple-system, "Segoe UI", sans-serif;--font-num: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;font-family:var(--font-body);color-scheme:light}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--ballpoint: #8ea8ff;--ballpoint-hover: #a9bdff;--ballpoint-soft: #1c2645;--margin-red: #ff6a5c;--on-red: #10131c;--graphite: #5c6378;--rail: #171b27;--on-rail: #e9ecf5;--on-rail-muted: #a3a9bc;--rail-hover: rgb(255 255 255 / .06);--rail-active: rgb(142 168 255 / .16);--bg: #10131c;--surface: #171b27;--sunken: #0c0f16;--text: #e9ecf5;--muted: #a3a9bc;--subtle: #8c93a8;--border: #262b3a;--border-strong: #3a4152;--accent-text: #10131c;--ok: #4cd08e;--ok-bg: #0e2a1d;--error: #ff6a5c;--error-bg: #3a1b19;--warn: #ffb547;--warn-bg: #2e200a;--focus: #8ea8ff;--pin: #8ea8ff;--pin-dot: #ff6a5c;--shadow-1: 0 1px 2px rgb(0 0 0 / .3);--shadow-2: 0 2px 4px rgb(0 0 0 / .3), 0 12px 32px rgb(0 0 0 / .4);color-scheme:dark}}:root[data-theme=dark]{--ballpoint: #8ea8ff;--ballpoint-hover: #a9bdff;--ballpoint-soft: #1c2645;--margin-red: #ff6a5c;--on-red: #10131c;--graphite: #5c6378;--rail: #171b27;--on-rail: #e9ecf5;--on-rail-muted: #a3a9bc;--rail-hover: rgb(255 255 255 / .06);--rail-active: rgb(142 168 255 / .16);--bg: #10131c;--surface: #171b27;--sunken: #0c0f16;--text: #e9ecf5;--muted: #a3a9bc;--subtle: #8c93a8;--border: #262b3a;--border-strong: #3a4152;--accent-text: #10131c;--ok: #4cd08e;--ok-bg: #0e2a1d;--error: #ff6a5c;--error-bg: #3a1b19;--warn: #ffb547;--warn-bg: #2e200a;--focus: #8ea8ff;--pin: #8ea8ff;--pin-dot: #ff6a5c;--shadow-1: 0 1px 2px rgb(0 0 0 / .3);--shadow-2: 0 2px 4px rgb(0 0 0 / .3), 0 12px 32px rgb(0 0 0 / .4);color-scheme:dark}body{font-family:var(--font-body);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3,legend,.logo-word{font-family:var(--font-head);font-weight:700;letter-spacing:-.025em;text-wrap:balance}h1{font-size:clamp(1.6rem,1.2rem + 1.5vw,2.25rem);line-height:1.1;margin:1.6rem 0 .4rem}h2{font-size:1.25rem;line-height:1.2;margin:1.8rem 0 .6rem}h3{font-size:1.05rem;font-weight:600}p{text-wrap:pretty}a{color:var(--accent);text-underline-offset:.18em}::selection{background:color-mix(in srgb,var(--ballpoint) 24%,transparent)}*{scrollbar-color:var(--border-strong) transparent}.small{font-size:.875rem}.muted{color:var(--muted)}table,.clock,.code,.code-box,.big,.play-stats b,.meter-row,.live-age{font-variant-numeric:tabular-nums}.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}:focus{outline:none}:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:6px}input,select,textarea,button{border-color:var(--border-strong);border-radius:var(--radius);padding:.6rem .8rem;min-height:44px;transition:border-color var(--dur-instant) ease,background-color var(--dur-instant) ease,transform var(--dur-quick) var(--ease-out)}input[type=checkbox],input[type=radio]{min-height:0;accent-color:var(--ballpoint);width:1.15rem;height:1.15rem}input::placeholder,textarea::placeholder{color:var(--subtle)}button,a.button,label.button{font-weight:600}button:active:not(:disabled),a.button:active,label.button:active{transform:scale(.97)}button.primary,a.button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-text)}a.button,label.button{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;min-height:44px;padding:.6rem 1rem;border-color:var(--border-strong)}button.link{min-height:0;font-weight:500}button:disabled{opacity:.5}@media(hover:hover)and (pointer:fine){button:hover:not(:disabled):not(.primary):not(.link),a.button:hover:not(.primary),label.button:hover{border-color:var(--text)}button.primary:hover:not(:disabled),a.button.primary:hover{background:var(--ballpoint-hover);border-color:var(--ballpoint-hover)}.link-card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-2)}}@media(max-width:899px){input,select,textarea,button,a.button,label.button{min-height:48px}button.link{min-height:0}}.icon-btn{display:inline-grid;place-items:center;width:44px;height:44px;padding:0;border:none;background:transparent;color:inherit;border-radius:10px}.card,.center-card,.table,.live-summary,.live-card,.instructions,.notice,.modal-card{border-color:var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow-1)}.card{padding:1.1rem 1.25rem}.center-card{max-width:440px;padding:2rem;margin:6vh auto}@media(max-width:520px){.center-card{margin:16px;padding:1.5rem}}.card-logo{margin-bottom:.5rem}.card h3{margin-bottom:.25rem}.link-card{transition:box-shadow var(--dur-instant) ease,border-color var(--dur-instant) ease}.notice{border-left:1px solid var(--border);background:var(--ballpoint-soft);border-color:transparent}.table th{font-weight:600;color:var(--muted);font-size:.875rem;background:var(--bg)}.table{overflow:hidden;border-collapse:separate;border-spacing:0}.badge{background:var(--error-bg);color:var(--error);font-weight:600}.modal{background:#1a1d2966;animation:fade-in var(--dur-base) var(--ease-out)}.modal-card{box-shadow:var(--shadow-2);animation:modal-in var(--dur-base) var(--ease-out);padding:1.5rem}.camera-preview,.camera-preview.mini,.photo-grid img,.live-photo{background:var(--camera)}.progress>span,.meter>span{background:var(--ballpoint)}.material .kind{background:var(--ballpoint-soft);color:var(--ballpoint)}.segmented button.active{background:var(--ballpoint);color:var(--accent-text)}.concept{border-left-width:1px}.logo{display:inline-flex;align-items:center;gap:.5rem;color:var(--text)}.logo-word{font-size:1.3rem;line-height:1}.skip-link{position:absolute;left:1rem;top:-4rem;z-index:50;padding:.6rem 1rem;background:var(--surface);color:var(--text);border-radius:var(--radius);box-shadow:var(--shadow-2)}.skip-link:focus{top:1rem}.shell-main{min-width:0;outline:none}.shell-main>.page{animation:page-in var(--dur-page) var(--ease-out)}.rail{display:none}.mobile-bar{position:sticky;top:0;z-index:10;display:grid;grid-template-columns:1fr auto;align-items:center;gap:.25rem .5rem;padding:.4rem 12px .5rem 16px;background:color-mix(in srgb,var(--bg) 92%,transparent);border-bottom:1px solid var(--border)}.mobile-bar a{text-decoration:none}.mobile-actions,.prefs{display:flex;align-items:center;gap:.1rem}.mobile-class{grid-column:1 / -1}.mobile-class .class-switch select{width:100%}.class-switch{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap}.class-switch select{flex:1;min-width:0;font-weight:600}.tabbar{position:fixed;inset:auto 0 0 0;z-index:10;display:flex;background:var(--surface);border-top:1px solid var(--border);padding-bottom:env(safe-area-inset-bottom)}.tab{flex:1 1 0;min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:56px;padding:6px 4px;font-size:.75rem;font-weight:600;color:var(--muted);text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tab>span{max-width:100%;overflow:hidden;text-overflow:ellipsis}.mobile-actions .icon-btn.active,.tab.active{color:var(--ballpoint)}.tab.active .icon{stroke-width:2.25}.shell{padding-bottom:calc(64px + env(safe-area-inset-bottom))}@media(min-width:900px){.shell{display:grid;grid-template-columns:264px minmax(0,1fr);padding-bottom:0;min-height:100vh}.mobile-bar,.tabbar{display:none}.rail{display:flex;flex-direction:column;gap:1rem;position:sticky;top:0;height:100vh;overflow-y:auto;padding:1.25rem 1rem;background:var(--rail);color:var(--on-rail)}.rail a{color:inherit;text-decoration:none}.rail .logo{color:var(--on-rail)}.rail-logo{padding:.25rem .5rem;border-radius:10px}.rail-class{padding:.6rem;border-radius:12px;background:var(--rail-hover);border:1px solid rgb(255 255 255 / .14)}.rail-class select{width:100%;background:transparent;color:var(--on-rail);border-color:#ffffff40}.rail-class select option{color:#1a1d29}.rail-class a{color:var(--on-rail-muted)}.rail-nav{display:flex;flex-direction:column;gap:2px}.rail-item{display:flex;align-items:center;gap:.75rem;min-height:44px;padding:.55rem .75rem;border-radius:10px;color:var(--on-rail-muted)!important;font-weight:500;transition:background-color var(--dur-instant) ease,color var(--dur-instant) ease}.rail-item.active{background:var(--rail-active);color:var(--on-rail)!important;font-weight:700}.rail-foot{margin-top:auto;display:flex;flex-direction:column;gap:.6rem}.rail-user{display:flex;align-items:center;gap:.6rem;padding:.6rem;border-radius:12px;background:var(--rail-hover);border:1px solid rgb(255 255 255 / .14)}.rail-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}.rail .icon-btn{color:var(--on-rail)}.avatar{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;flex:none;background:#ffffff29;font-weight:700;font-size:.8rem}.shell-main>.page{padding:0 40px 64px;max-width:1180px;margin:0}@media(hover:hover)and (pointer:fine){.rail-item:hover{background:var(--rail-hover);color:var(--on-rail)!important}.rail .icon-btn:hover{background:var(--rail-hover)}}}@media(max-width:899px){.avatar,.rail-name{display:none}}.page-head{margin:1.75rem 0 1.25rem}.page-head h1{margin:0 0 .25rem}.page-head p{margin:0}.route-card h2{margin:0;font-size:1.35rem}.route-card p{margin:.15rem 0 0}.route{--gap: 12px;list-style:none;margin:1.25rem 0 .25rem;padding:0 0 .5rem;display:grid;grid-auto-flow:column;grid-auto-columns:minmax(120px,1fr);gap:var(--gap);overflow-x:auto;scroll-snap-type:x proximity;position:relative}.route-stop{position:relative;scroll-snap-align:start;min-width:0}.route-stop:not(:last-child):after{content:"";position:absolute;top:8px;left:22px;right:calc(-1 * var(--gap));height:2px;background:var(--graphite);opacity:.6}.route-stop.done:not(:last-child):after{background:var(--ballpoint);opacity:1}.route-link{display:flex;flex-direction:column;align-items:flex-start;gap:.35rem;min-height:44px;color:inherit;text-decoration:none;border-radius:8px;padding-right:.5rem}.route-mark{position:relative;z-index:1;width:18px;height:18px;border-radius:50%;border:2px solid var(--graphite);background:var(--surface)}.route-mark.done{background:var(--ballpoint);border-color:var(--ballpoint)}.route-mark.next{border:4px solid var(--margin-red)}.route-name{font-family:var(--font-head);font-weight:700;letter-spacing:-.02em;line-height:1.2;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.route-name.plate{background:var(--margin-red);color:var(--on-red);padding:.15rem .5rem;border-radius:4px}.route-stop.next .route-name:not(.plate){color:var(--text)}.route-stop.todo .route-name:not(.plate){color:var(--muted)}.route-sub{font-size:.8125rem;color:var(--muted)}.route-stop.next .route-sub{color:var(--text);font-weight:600}@media(hover:hover)and (pointer:fine){a.route-link:hover .route-name:not(.plate){text-decoration:underline;text-underline-offset:.2em}}.route-draw .route-stop:after{animation:route-line .48s var(--ease-out) both;animation-delay:calc(var(--i) * 40ms)}.route-draw .route-mark,.route-draw .route-name,.route-draw .route-sub{animation:stop-in var(--dur-base) var(--ease-out) both;animation-delay:calc(var(--i) * 40ms + 60ms)}.exam{background:var(--bg)}.exam-header{gap:1rem;padding:.6rem 20px;min-height:64px}.exam-header h2{font-size:1rem;font-family:var(--font-body);font-weight:700;letter-spacing:0}.exam-mark{display:inline-flex;align-items:center;gap:.35rem;color:var(--graphite);font-family:var(--font-body);font-weight:500;padding-right:1rem;border-right:1px solid var(--border)}:root[data-theme=dark] .exam-mark{color:var(--subtle)}.clock{font-family:var(--font-num);font-weight:700;font-size:1.35rem;letter-spacing:.02em;padding:.3rem .8rem;border-radius:10px;background:var(--text);color:var(--bg);transition:background-color var(--dur-base) ease,color var(--dur-base) ease}.clock.low{background:var(--warn-bg);color:var(--warn);box-shadow:inset 0 0 0 1px currentColor}.clock.last{background:var(--margin-red);color:var(--on-red)}.save{color:var(--muted)}.question .prompt{font-size:1.125rem;line-height:1.6;max-width:70ch}.qnav{gap:6px}.qnav button{width:44px;height:44px;padding:0;min-height:44px;border-radius:10px;font-family:var(--font-num);font-weight:700;font-size:.9rem;transition:none}.qnav button.done{background:var(--ballpoint-soft);border-color:transparent;color:var(--ballpoint)}.qnav button.active,.qnav button[aria-current=step]{outline:none;background:var(--margin-red);border-color:var(--margin-red);color:var(--on-red)}.choice{padding:.8rem 1rem;border-radius:12px;min-height:52px;align-items:center;transition:border-color var(--dur-instant) ease,background-color var(--dur-quick) ease}.choice:has(input:checked){border-color:var(--ballpoint);background:var(--ballpoint-soft);box-shadow:inset 0 0 0 1px var(--ballpoint)}.warning{background:var(--warn-bg);border-color:transparent;font-weight:600}.tabs button.active{background:var(--ballpoint-soft);border-color:var(--ballpoint)}.pdf-page{background:var(--sunken)}.choice-btn{border-radius:12px;min-height:52px;transition:border-color var(--dur-instant) ease,background-color var(--dur-quick) ease}.choice-btn.right{border-color:var(--ok);background:var(--ok-bg)}.choice-btn.wrong{border-color:var(--error);background:var(--error-bg);animation:nudge .16s var(--ease-out)}@keyframes fade-in{0%{opacity:0}}@keyframes modal-in{0%{opacity:0;transform:scale(.96)}}@keyframes page-in{0%{opacity:0;transform:translateY(6px)}}@keyframes route-line{0%{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0 0 0 0)}}@keyframes stop-in{0%{opacity:0;transform:scale(.95)}}@keyframes nudge{0%,to{transform:translate(0)}30%{transform:translate(-4px)}60%{transform:translate(4px)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:1ms!important}button:active:not(:disabled),a.button:active,label.button:active{transform:none}.shell-main>.page,.modal,.modal-card{animation:fade-in .15s ease both}.route-draw .route-stop:after,.route-draw .route-mark,.route-draw .route-name,.route-draw .route-sub,.choice-btn.wrong{animation:none}}.chip{display:inline-flex;align-items:center;gap:.35rem;padding:.15rem .6rem;border-radius:999px;font-size:.8125rem;font-weight:600;line-height:1.5;white-space:nowrap;background:var(--sunken);color:var(--muted)}.chip.ok{background:var(--ok-bg);color:var(--ok)}.chip.warn{background:var(--warn-bg);color:var(--warn)}.chip.danger{background:var(--error-bg);color:var(--error)}.chip.info{background:var(--ballpoint-soft);color:var(--ballpoint)}.work-list{list-style:none;margin:.6rem 0 0;padding:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card)}.work-list>li{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.35rem 1rem;align-items:center;padding:.85rem 1.1rem}.work-list>li+li{border-top:1px solid var(--border)}.work-title{font-weight:600;min-width:0;overflow-wrap:anywhere}.work-title a{color:var(--text);text-decoration:none}.work-title a:hover{color:var(--ballpoint);text-decoration:underline}.work-meta{color:var(--muted);font-size:.8125rem;display:flex;flex-wrap:wrap;gap:.25rem .75rem;align-items:center}.work-actions{display:flex;gap:.5rem;flex-wrap:wrap;justify-content:flex-end;grid-row:span 2}.work-actions .button,.work-actions button{min-height:40px;padding:.45rem .9rem}.work-empty{color:var(--muted)}@media(max-width:640px){.work-list>li{grid-template-columns:minmax(0,1fr)}.work-actions{grid-row:auto;justify-content:flex-start}}.section-head{display:flex;align-items:center;justify-content:space-between;gap:.75rem;flex-wrap:wrap;margin:1.8rem 0 0}.section-head h2{margin:0}.section-head:first-of-type{margin-top:.5rem}.menu{position:relative}.menu>summary{list-style:none;cursor:pointer}.menu>summary::-webkit-details-marker{display:none}.menu-list{position:absolute;right:0;z-index:20;margin-top:.35rem;min-width:12rem;padding:.35rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-2);display:flex;flex-direction:column;animation:fade-in var(--dur-quick) var(--ease-out)}.menu-list button{border:0;background:none;text-align:left;justify-content:flex-start;min-height:40px;border-radius:4px}.menu-list button:hover{background:var(--sunken)}.card .chip{margin-bottom:.4rem}.card-actions{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center;margin-top:.75rem}.seb-setup summary{cursor:pointer;font-weight:600}.seb-setup ol{margin:.5rem 0 .25rem 1.1rem;padding:0}.seb-setup li{margin:.25rem 0}.empty{padding:1rem 1.25rem;border:1px dashed var(--border-strong);border-radius:var(--radius-card);color:var(--muted)}.empty b{color:var(--text)}.editor-bar{position:sticky;top:0;z-index:9;margin:0 0 1rem;padding:.75rem 1rem;display:flex;flex-wrap:wrap;align-items:center;gap:.5rem 1rem;background:color-mix(in srgb,var(--surface) 94%,transparent);border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow-1)}@media(max-width:899px){.editor-bar{position:static}}.editor-bar .grow{flex:1;min-width:12rem}.editor-bar .unsaved{color:var(--warn);font-weight:600;font-size:.8125rem}.ready-list{list-style:none;margin:.35rem 0 0;padding:0;display:flex;flex-wrap:wrap;gap:.25rem 1rem;font-size:.8125rem}.ready-list li{display:inline-flex;align-items:center;gap:.4rem}.ready-list li:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--ok);flex:none}.ready-list li.todo:before{background:var(--warn)}.ready-list li.todo{color:var(--warn)}.jump{display:flex;flex-wrap:wrap;gap:.4rem;margin:0 0 .5rem}.jump a{font-size:.8125rem;padding:.3rem .75rem;border-radius:999px;background:var(--sunken);color:var(--text);text-decoration:none}.jump a:hover{background:var(--ballpoint-soft);color:var(--ballpoint)}[id^=sec-]{scroll-margin-top:9rem}fieldset .inline-check{display:flex;gap:.5rem;align-items:flex-start}fieldset .inline-check input{margin-top:.2rem}.question-edit.dirty,.qnav button.flagged{box-shadow:inset 0 0 0 2px var(--warn)}.qnav button .flag-dot{position:absolute;top:4px;right:4px;width:7px;height:7px;border-radius:50%;background:var(--warn)}.qnav button{position:relative}.question{max-width:78ch}.question-tools{display:flex;justify-content:space-between;align-items:center;gap:.75rem;flex-wrap:wrap}.flag-btn[aria-pressed=true]{background:var(--warn-bg);color:var(--warn);border-color:var(--warn)}.review-jump{display:flex;flex-wrap:wrap;gap:.35rem}.review-jump button{min-width:44px;min-height:40px;padding:.3rem .6rem;font-family:var(--font-num)}.kbd-hint{color:var(--subtle);font-size:.8125rem}kbd{font-family:var(--font-num);font-size:.75rem;padding:.05rem .35rem;border:1px solid var(--border-strong);border-radius:4px}@media(hover:none){.kbd-hint{display:none}}.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}summary.button{display:inline-flex;align-items:center;min-height:44px;padding:.55rem 1rem;border-radius:var(--radius);border:1px solid var(--border-strong);background:var(--surface);color:var(--text);font-weight:600}summary.button:after{content:"";width:7px;height:7px;margin-left:.6rem;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:translateY(-2px) rotate(45deg)}@media(hover:hover)and (pointer:fine){summary.button:hover{border-color:var(--ballpoint)}}input[type=file]{max-width:100%}fieldset .inline-check{flex-direction:row}.import-box>summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:.5rem}.import-box>summary::-webkit-details-marker{display:none}.import-box>summary:before{content:"";width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(-45deg);transition:transform var(--dur-quick) var(--ease-out)}.import-box[open]>summary:before{transform:rotate(45deg)}.import-box>summary h3{margin:0}.import-box[open]>summary{margin-bottom:.75rem}.import-box{margin-top:1rem}@media(max-width:640px){.work-meta{order:2}.work-actions{order:3}}.seb-steps{margin:0;padding-left:1.2rem;display:flex;flex-direction:column;gap:.75rem}.seb-steps li>span{display:block;margin-top:.3rem}details.small>summary{cursor:pointer;font-weight:600}details.small[open]>summary{margin-bottom:.5rem}.seb-welcome{border-color:var(--ballpoint)}.seb-welcome h2{margin-top:0}select{max-width:100%}.exam-body>*{min-width:0}.exam-header h2{min-width:0;overflow-wrap:anywhere}@media(max-width:640px){.exam-header{flex-wrap:wrap;row-gap:.5rem;padding:.5rem 16px;min-height:0}.exam-header h2{flex:1 1 100%;order:-1}.exam-header .exam-mark{display:none}.exam-header .save{flex:1}}.cv{margin:.25rem 0;padding:1rem;border:1px solid var(--border);border-radius:var(--radius-card);background:var(--surface);container-type:inline-size;min-width:0}.cv-title{font-family:var(--font-head);font-weight:600;font-size:1rem;margin:0 0 .75rem;color:var(--text)}.cv-hint{margin:0 0 .5rem;font-size:.8125rem;color:var(--muted)}.cv .num,.cv-tick{font-variant-numeric:tabular-nums}.cv-steps ol{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:1.5rem}.cv-step{position:relative;transition:opacity var(--dur-base) var(--ease-out)}.cv-step:not(:last-of-type):after,.cv-steps.cycle .cv-step:last-of-type:after{content:"↓";position:absolute;left:1.15rem;bottom:-1.45rem;color:var(--subtle);font-size:1rem;line-height:1.4rem}.cv-step>button{display:flex;align-items:flex-start;gap:.65rem;width:100%;text-align:left;font:inherit;color:var(--text);cursor:pointer;padding:.6rem .75rem;border:1px solid var(--border-strong);border-radius:var(--radius);background:var(--surface);transition:border-color var(--dur-quick) ease,background-color var(--dur-quick) ease}.cv-num{flex:none;display:inline-grid;place-items:center;width:1.6rem;height:1.6rem;border-radius:50%;border:1.5px solid var(--ballpoint);color:var(--ballpoint);font-family:var(--font-num);font-size:.8125rem;font-weight:700}.cv-step.now>button{border-color:var(--ballpoint);background:var(--ballpoint-soft);box-shadow:0 0 0 1px var(--ballpoint)}.cv-step.now .cv-num,.cv-step.done .cv-num{background:var(--ballpoint);color:var(--accent-text)}.cv-step.ahead{opacity:.38}.cv-loop{font-size:.8125rem;color:var(--muted);padding-left:.4rem}.cv-ring{display:none}@media(hover:hover)and (pointer:fine){.cv-step>button:hover{border-color:var(--ballpoint)}}@container (min-width: 640px){.cv-steps.row ol{flex-direction:row;gap:2rem}.cv-steps.row .cv-step{flex:1 1 0}.cv-steps.row .cv-step>button{flex-direction:column;height:100%}.cv-steps.row .cv-step:not(:last-of-type):after{content:"→";left:auto;right:-1.5rem;bottom:auto;top:50%;transform:translateY(-50%)}}@container (min-width: 520px){.cv-steps.cycle{position:relative;width:100%;max-width:440px;aspect-ratio:1;margin:0 auto}.cv-steps.cycle .cv-ring{display:block;position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.cv-ring path{fill:none;stroke:var(--border-strong);stroke-width:.8;stroke-linecap:round;transition:stroke var(--dur-quick) ease}.cv-ring path.on{stroke:var(--ballpoint);stroke-width:1.2}.cv-steps.cycle ol{position:absolute;top:0;right:0;bottom:0;left:0;display:block}.cv-steps.cycle .cv-step{position:absolute;width:30%;left:calc(50% + 38%*sin(var(--i) / var(--n) * 360deg));top:calc(50% - (38%*cos(var(--i) / var(--n) * 360deg)));transform:translate(-50%,-50%)}.cv-steps.cycle .cv-step:after{content:none!important}.cv-steps.cycle .cv-step>button{flex-direction:column;align-items:center;text-align:center;font-size:.8125rem;padding:.5rem}.cv-steps.cycle .cv-loop{display:none}}.cv-controls{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem .75rem;margin-top:1rem}.cv-count{font-size:.8125rem;color:var(--muted);min-width:6.5rem;text-align:center}.cv-bars{list-style:none;margin:0;padding:0;display:grid;gap:.15rem}.cv-bars button{display:grid;grid-template-columns:minmax(7rem,34%) 1fr auto;align-items:center;gap:.75rem;width:100%;min-height:44px;padding:.35rem .5rem;border:1px solid transparent;border-radius:var(--radius);background:none;color:var(--text);font:inherit;text-align:left;cursor:pointer}.cv-bars button.on{border-color:var(--ballpoint);background:var(--ballpoint-soft)}@media(hover:hover)and (pointer:fine){.cv-bars button:hover:not(.on){background:var(--sunken)}}.cv-bar-label{font-size:.8125rem;line-height:1.3}.cv-bar-track{display:block;height:14px}.cv-bar{display:block;height:100%;background:var(--ballpoint);border-radius:0 4px 4px 0;transform-origin:left;animation:cv-grow var(--dur-page) var(--ease-out) both}.cv-bar-value{font-family:var(--font-num);font-size:.8125rem;font-weight:700;white-space:nowrap;text-align:right}.cv-ratio{display:block;font-weight:400;color:var(--muted)}@keyframes cv-grow{0%{transform:scaleX(0)}}@container (max-width: 459px){.cv-bars button{grid-template-columns:1fr auto;row-gap:.3rem}.cv-bar-label{grid-column:1 / -1}}.cv-plot{width:100%}.cv-plot svg{display:block;touch-action:pan-y;cursor:crosshair;overflow:visible}.cv-axis-y,.cv-axis-x{margin:0;font-size:.8125rem;color:var(--muted);font-weight:600}.cv-axis-y{margin-bottom:.35rem}.cv-axis-x{text-align:center;margin-top:.1rem}.cv-grid{stroke:var(--border);stroke-width:1}.cv-axis{stroke:var(--border-strong);stroke-width:1}.cv-tick{fill:var(--muted);font-size:.8125rem;font-family:var(--font-body)}.cv-line{fill:none;stroke:var(--ballpoint);stroke-width:2;stroke-linejoin:round;stroke-linecap:round}.cv-pt{fill:var(--ballpoint);stroke:var(--surface);stroke-width:2}.cv-cross{stroke:var(--subtle);stroke-width:1;stroke-dasharray:3 3}.cv-cursor{fill:var(--surface);stroke:var(--ballpoint);stroke-width:2.5}.cv-slider{display:block;margin-top:.35rem}.cv-slider input{width:100%;accent-color:var(--ballpoint);min-height:32px}.cv-readout{margin:.35rem 0 0;font-size:1rem}.cv-table{margin-top:.75rem}.cv-table summary{cursor:pointer;color:var(--ballpoint);font-weight:600}.cv-table .table{margin-top:.5rem}.learn-progress{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap;font-size:.8125rem;color:var(--muted)}.learn-progress b{color:var(--text)}.learn-progress .meter{width:10rem}.concept details.example>summary{cursor:pointer;font-weight:600;color:var(--ballpoint)}.concept details.example[open]>summary{margin-bottom:.4rem}.concept details.example p{margin:0}.check-yourself{background:var(--sunken);border-radius:var(--radius);padding:.9rem 1rem;display:flex;flex-direction:column;gap:.5rem}.check-yourself p{margin:0}.check-label{font-size:.8125rem;font-weight:700;color:var(--ballpoint)}.check-yourself .choice-btn{background:var(--surface)}@media(prefers-reduced-motion:reduce){.cv-bar{animation:none}.cv-step,.cv-step>button,.cv-ring path{transition:none}}.review-due{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.75rem;padding:.85rem 1rem;border:1px solid var(--warn);border-radius:var(--radius);background:var(--warn-bg);margin-top:1rem}.concept-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem}.concept-head h3{margin:0}.learn-map{padding:1rem}.learn-map>summary{cursor:pointer;display:flex;flex-direction:column;gap:.15rem;list-style:none}.learn-map>summary::-webkit-details-marker{display:none}.learn-map-title{font-family:var(--font-head);font-weight:700;font-size:1.125rem}.learn-map ol{list-style:none;margin:.9rem 0 0;padding:0;display:grid;gap:0}.learn-map .stop{position:relative}.learn-map .stop:not(:last-child):before{content:"";position:absolute;left:1.05rem;top:2.3rem;bottom:-.3rem;width:2px;background:var(--border-strong)}.learn-map .stop.learned:not(:last-child):before{background:var(--ballpoint)}.learn-map .stop>button{display:flex;gap:.75rem;align-items:flex-start;width:100%;text-align:left;padding:.4rem .25rem .6rem;border:0;background:none;color:var(--text);font:inherit;cursor:pointer;border-radius:var(--radius)}@media(hover:hover)and (pointer:fine){.learn-map .stop>button:hover{background:var(--sunken)}}.stop-dot{flex:none;position:relative;z-index:1;display:inline-grid;place-items:center;width:1.6rem;height:1.6rem;margin:.1rem .25rem 0;border-radius:50%;border:2px solid var(--border-strong);background:var(--surface);font-family:var(--font-num);font-size:.8125rem;font-weight:700;color:var(--muted)}.stop.learning .stop-dot{border-color:var(--ballpoint);color:var(--ballpoint)}.stop.learned .stop-dot{border-color:var(--ballpoint);background:var(--ballpoint);color:var(--accent-text)}.stop.due .stop-dot{border-color:var(--margin-red);color:var(--margin-red);box-shadow:0 0 0 3px var(--surface),0 0 0 4px var(--margin-red)}.stop-body{display:flex;flex-direction:column;gap:.3rem;min-width:0}.stop-title{font-weight:600}.stop-pips{display:flex;flex-wrap:wrap;align-items:center;gap:.35rem .75rem;font-size:.8125rem;color:var(--muted)}.pip.on{color:var(--ballpoint);font-weight:600}.learn-step{display:flex;flex-direction:column;gap:.5rem;padding-top:.9rem;border-top:1px solid var(--border)}.learn-step:first-of-type{padding-top:.25rem;border-top:0}.learn-step-head{margin:0;display:flex;align-items:center;gap:.5rem}.learn-step-head b{font-family:var(--font-head)}.plain-words{border:1px solid color-mix(in srgb,var(--ballpoint) 35%,transparent);background:var(--ballpoint-soft);border-radius:var(--radius);padding:.7rem .9rem}.plain-words p{margin:0}.question-play>p{margin:0}.choice-btn.picked{border-color:var(--ballpoint);background:var(--ballpoint-soft);box-shadow:0 0 0 1px var(--ballpoint)}.confidence{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem .9rem;padding:.6rem .75rem;border-radius:var(--radius);background:var(--sunken)}.confidence>span{font-weight:600}.check-yourself .confidence{background:var(--surface)}.own-words label,.explain-simply label{display:flex;flex-direction:column;gap:.35rem}.own-compare{border:1px dashed var(--border-strong);border-radius:var(--radius);padding:.7rem .9rem}.own-compare p{margin:0}.calibration{display:flex;flex-wrap:wrap;gap:.5rem 1.25rem;font-size:.8125rem;color:var(--muted)}.calibration b{color:var(--text)}.chip-line{margin:0;padding:.55rem .75rem;border-radius:var(--radius);background:var(--sunken);color:var(--text)}.chip-line.ok{background:var(--ok-bg)}.chip-line.warn{background:var(--warn-bg)}.chip-line.info{background:var(--ballpoint-soft)}.cd-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem;margin-bottom:.75rem}.cd-bar .cv-hint{margin:0}.cd-stage{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--sunken)}.cd-stage img{display:block;width:100%;height:auto;max-height:70vh;object-fit:contain}.cd-stage.editing{cursor:crosshair}.cd-wait{padding:3rem 1rem;text-align:center;color:var(--muted);font-size:.8125rem}.cd-pin{position:absolute;transform:translate(-50%,-50%);width:28px;height:28px;padding:0;border-radius:50%;border:2px solid var(--surface);background:var(--ballpoint);color:var(--accent-text);cursor:pointer;font-family:var(--font-num);font-size:.8125rem;font-weight:700;box-shadow:var(--shadow-1);transition:transform var(--dur-quick) var(--ease-out)}.cd-pin:after{content:"";position:absolute;top:-9px;right:-9px;bottom:-9px;left:-9px;border-radius:50%}.cd-pin.on{background:var(--margin-red);transform:translate(-50%,-50%) scale(1.12)}.cd-pin.hidden{background:var(--surface);color:var(--ballpoint);border-color:var(--ballpoint)}.cd-labels{list-style:none;margin:.75rem 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(12rem,1fr));gap:.25rem .75rem}.cd-labels button{display:flex;align-items:center;gap:.5rem;width:100%;min-height:40px;padding:.25rem .4rem;border:0;border-radius:var(--radius);background:none;color:var(--text);font:inherit;text-align:left;cursor:pointer}.cd-labels li.on button{background:var(--ballpoint-soft)}.cd-edit-list{list-style:none;margin:0;padding:0;display:grid;gap:.4rem}.class-results .result-row{display:grid;grid-template-columns:minmax(7rem,34%) 1fr auto;align-items:center;gap:.75rem;padding:.35rem .5rem}@container (max-width: 459px){.class-results .result-row{grid-template-columns:1fr auto}.class-results .cv-bar-label{grid-column:1 / -1}}.class-results{container-type:inline-size}@media(prefers-reduced-motion:reduce){.cd-pin{transition:none}}.drawing-editor{min-width:0}.concept-pick{max-width:16rem;text-overflow:ellipsis}
