:root{--sad-ink:#1d2b6b;--sad-ink-soft:#46508a;--sad-red:#d9464c;--sad-paper:#fdfcf7;--sad-fabric:#1f2937;--sad-fabric-hi:#334155;--sad-zip:#f97316;--sad-grain:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.4 0 0 0 0 0.35 0 0 0 0 0.3 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}.sad-stage{--open:0;aspect-ratio:.8;perspective:1100px;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;width:min(100%,380px);margin-inline:auto;position:relative}.sad-strap{z-index:0;border:9px solid #111827;border-bottom:none;border-radius:999px 999px 0 0;width:14%;height:22%;position:absolute;top:2%;left:43%}.sad-back{z-index:0;background:#111827;border-radius:34% 34% 14% 14%/22% 22% 9% 9%;position:absolute;inset:10% 3% 0}.sad-compartment{z-index:1;background:radial-gradient(120% 80% at 50% 0,#0b1220 0%,#020617 70%),#020617;border-radius:26% 26% 4% 4%/30% 30% 4% 4%;position:absolute;inset:14% 8% 40%;overflow:hidden;box-shadow:inset 0 18px 30px #000000b3}.sad-shelf{z-index:2;transform:translateY(calc((1 - var(--open)) * 24%));opacity:min(1, calc(var(--open) * 2.5));position:absolute;inset:0}.sad-front{background:var(--sad-grain),  repeating-linear-gradient(0deg, #ffffff09 0 1px, transparent 1px 9px), repeating-linear-gradient(90deg, #ffffff09 0 1px, transparent 1px 9px), linear-gradient(180deg, var(--sad-fabric-hi), var(--sad-fabric) 55%, #111827);z-index:4;pointer-events:none;border-radius:10% 10% 22% 22%/14% 14% 30% 30%;position:absolute;inset:52% 3% 0;box-shadow:inset 0 2px #ffffff14,inset 0 -14px 24px #00000059,0 24px 40px -18px #020617a6}.sad-pocket{background:linear-gradient(#ffffff0f,#0000002e);border:1.5px dashed #ffffff24;border-radius:14% 14% 26% 26%/18% 18% 34% 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.sad-zip-open,.sad-stage[data-animating=true] .sad-zip-pull{transition:transform .52s cubic-bezier(.2,.9,.25,1.15),opacity .4s,left .52s cubic-bezier(.2,.9,.25,1.1)}.sad-notebook{--cover:#2f4fd6;--r:0deg;--lift:0%;aspect-ratio:.71;transform-origin:50% 165%;width:36%;transform:rotate(var(--r)) translateY(var(--lift));background:var(--cover);color:#fff;cursor:pointer;border:none;border-radius:3px 6px 6px 3px;padding:0;font-size:clamp(12px,3.6vw,15px);transition:transform .24s cubic-bezier(.2,.9,.3,1.2);position:absolute;bottom:40%;left:32%;box-shadow:inset 5px 0 #0000002e,0 -2px 12px #0000008c}.sad-notebook:hover,.sad-notebook:focus-visible{--lift:-9%;z-index:3}.sad-notebook:active{--lift:-13%}.sad-notebook:focus-visible{outline-offset:2px;outline:3px solid #fde68a}.sad-stage[data-open=false] 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7.5px),radial-gradient(circle at 8px 82%,#2a2d35 0 6px,#00000040 6.5px,#0000 7.5px);width:16px;position:absolute;top:0;bottom:0;left:12px}.sad-half[data-side=left] .sad-holes{left:auto;right:12px}.sad-paper[data-sheet=copie]{--margin:28px}.sad-reader[data-zoomed=true] .sad-bar:first-of-type{display:none!important}.sad-reader[data-zoomed=true] .sad-pupitre{margin-top:4px}.sad-reader[data-zoomed=true] .sad-book{--chrome:62px}.sad-doc-tab{z-index:4;color:#fff;letter-spacing:.01em;white-space:nowrap;text-overflow:ellipsis;pointer-events:none;border-radius:999px;max-width:calc(100% - 90px);padding:4px 10px;font-size:12px;font-weight:800;position:absolute;top:10px;right:10px;overflow:hidden;box-shadow:0 2px 6px #00000040}.sad-ribbon{clip-path:polygon(0 0,50% 14%,100% 0,100% 100%,0 100%);transform-origin:50% 100%;background:linear-gradient(90deg,#f59f00,#ffd43b 45%,#f08c00);border-radius:2px 2px 0 0;width:13%;height:34%;animation:2.4s ease-in-out .6s 2 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env(safe-area-inset-bottom));z-index:50;color:#0f172a;cursor:pointer;background:#f8fafc;border:none;border-radius:999px;align-items:center;gap:8px;min-height:56px;padding:0 22px;font-size:16px;font-weight:800;transition:transform .14s;display:inline-flex;position:fixed;translate:-50%;box-shadow:0 14px 30px -10px #020617a6,0 0 0 1px #0f172a14}.sad-dock:active{transform:scale(.96)}.sad-dock:focus-visible{outline-offset:3px;outline:3px solid #fdba74}.sad-dock-sheet{z-index:71;width:min(100%,560px);max-height:90dvh;padding:14px 14px calc(18px + env(safe-area-inset-bottom));color:#0f172a;background:#f8fafc;border-radius:22px 22px 0 0;margin-inline:auto;animation:.38s cubic-bezier(.2,.9,.3,1.1) both sad-sheet-in;position:fixed;bottom:0;left:0;right:0;overflow-y:auto;box-shadow:0 -20px 40px #00000059}.dark .sad-dock-sheet{color:#e2e8f0;background:#0f172a}.sad-mission-postit{color:#292524;white-space:normal;background:linear-gradient(#0000000a,#0000 14px),#fff3a0;border-bottom-right-radius:26px 6px;padding:12px 12px 10px;box-shadow:0 1px 1px #0000001f,0 14px 22px -10px #00000073}.sad-clip-wrap{z-index:12;cursor:pointer;-webkit-user-select:none;user-select:none;transition:transform .18s,filter .18s;position:absolute;top:14px;right:18px}.sad-clip-wrap:hover{filter:drop-shadow(0 6px 14px #00000040);transform:scale(1.05)rotate(-1deg)}.sad-clip-polaroid{background:#fff;border-radius:4px;width:86px;padding:4px;position:relative;rotate:2.5deg;box-shadow:0 4px 10px #0003,0 0 0 1px #0000000d}.sad-clip-polaroid img{object-fit:cover;border-radius:2px;width:100%;height:72px;display:block}.sad-paperclip-svg{z-index:15;filter:drop-shadow(0 2px 3px #00000059);width:22px;height:48px;position:absolute;top:-12px;right:16px}.sad-line-reading{background:#fef3c78c;border-left:3px solid #6366f1;border-radius:0 4px 4px 0;margin-left:-9px;padding-left:6px;transition:background .22s;position:relative}.sad-line-reading:before{content:"▶";color:#6366f1;font-size:8px;position:absolute;top:50%;left:-14px;transform:translateY(-50%)}.sad-lightbox-overlay{z-index:90;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0f172ad9;flex-direction:column;animation:.24s cubic-bezier(.2,.9,.3,1.1) both sad-sheet-in;display:flex;position:fixed;inset:0}.sad-lightbox-header{color:#fff;border-bottom:1px solid #ffffff1f;justify-content:space-between;align-items:center;padding:12px 18px;display:flex}.sad-lightbox-body{flex:1;justify-content:center;align-items:center;padding:16px;display:flex;overflow:auto}.sad-lightbox-img-wrap{border-radius:12px;max-width:90vw;max-height:82vh;position:relative;overflow:hidden;box-shadow:0 20px 45px #00000080}.sad-lightbox-img-wrap img{object-fit:contain;max-width:90vw;max-height:82vh;display:block}.sad-mode-pill{background:#0000000f;border-radius:9999px;align-items:center;gap:2px;padding:2px;display:inline-flex}.sad-mode-btn{color:#64748b;cursor:pointer;background:0 0;border:none;border-radius:9999px;padding:3px 9px;font-size:11px;font-weight:700;transition:background .16s,color .16s}.sad-mode-btn[data-active=true]{color:#0f172a;background:#fff;box-shadow:0 1px 3px #0000001f}@media (max-width:640px){.sad-pupitre{gap:4px;width:calc(100vw - 12px);min-height:32px;margin:0 auto 2px;padding:0 2px}.sad-paper{--line:26px;--margin:28px}.sad-writing{font-size:14.5px;line-height:var(--line);padding:calc(var(--line) * .5 + 4px) 10px calc(var(--line) * 1) calc(var(--margin) + 6px)}.sad-book{--chrome:102px;width:calc(100vw - 10px)}.sad-btn{padding:6px 10px;font-size:12px}}.sad-mirror-container{grid-template-columns:1fr;align-items:start;gap:12px;display:grid}@media (min-width:640px),(orientation:landscape){.sad-mirror-container{grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:16px}}.sad-mirror-body{min-width:0}@media (orientation:landscape) and (max-height:560px){.sad-reader{--chrome:74px}.sad-bar{min-height:32px;padding:2px 10px}.sad-pupitre{gap:6px;margin-bottom:2px;padding:2px 10px}.sad-desk{padding:2px 8px}.sad-book{--chrome:74px;width:min(calc(100vw - 16px), calc((100dvh - var(--chrome)) * 1.55));aspect-ratio:auto;height:calc(100dvh - var(--chrome))}.sad-book[data-spread=true]{width:min(calc(100vw - 16px), calc((100dvh - var(--chrome)) * 1.85));aspect-ratio:auto;height:calc(100dvh - var(--chrome))}}:-webkit-any(.sad-reader:fullscreen .sad-book,.sad-reader:-webkit-full-screen .sad-book){--chrome:84px;width:min(100vw - 16px,95dvh)}:is(.sad-reader:fullscreen .sad-book,.sad-reader:fullscreen .sad-book){--chrome:84px;width:min(100vw - 16px,95dvh)}@media (orientation:landscape){:-webkit-any(.sad-reader:fullscreen .sad-book,.sad-reader:-webkit-full-screen .sad-book){--chrome:64px;width:min(calc(100vw - 16px), calc((100dvh - var(--chrome)) * 1.7));height:calc(100dvh - var(--chrome));aspect-ratio:auto}:is(.sad-reader:fullscreen .sad-book,.sad-reader:fullscreen .sad-book){--chrome:64px;width:min(calc(100vw - 16px), calc((100dvh - var(--chrome)) * 1.7));height:calc(100dvh - var(--chrome));aspect-ratio:auto}}.zen-stage{background:#f3efe7;min-height:100dvh;padding:16px 12px 96px}.zen-paper[data-sheet=copie-zen]{background-image:var(--sad-grain), linear-gradient(90deg, transparent calc(var(--margin) - 1px), #d9464c73 calc(var(--margin) - 1px), #d9464c73 calc(var(--margin) + 1px), transparent calc(var(--margin) + 1px)), repeating-linear-gradient(180deg, transparent 0 31px, #605abe2e 31px 32px), repeating-linear-gradient(180deg, transparent 0 7px, #8296d71a 7px 8px);background-attachment:local;border-radius:12px;max-width:640px;min-height:min(70dvh,720px);margin:0 auto;position:relative;inset:auto;overflow:visible;box-shadow:0 12px 32px -16px #0f172a59}.zen-copy{padding:24px 20px 20px calc(var(--margin) + 12px)}.zen-kicker{text-transform:uppercase;letter-spacing:.08em;color:#64748b;font-size:12px;font-weight:700}.zen-title{color:var(--sad-ink);margin-top:4px;font-size:22px;line-height:1.3}.zen-promise{color:#64748b;margin-top:6px;font-size:13px}.zen-list{gap:24px;margin:20px 0 0;padding:0;list-style:none;display:grid}.zen-q{border-top:1px solid #0f172a14;padding-top:16px}.zen-qhead{align-items:flex-start;gap:10px;display:flex}.zen-qnum{color:#fff;background:#1e293b;border-radius:9999px;flex:none;justify-content:center;align-items:center;width:28px;height:28px;font-size:14px;font-weight:800;display:inline-flex}.zen-qtitle{color:#0f172a;flex:1;align-items:flex-start;gap:8px;min-width:0;font-size:17px;line-height:1.6;display:flex}.zen-ready{color:#64748b;background:#f1f5f9;border-radius:9999px;flex:none;padding:4px 10px;font-size:11px;font-weight:700}.zen-ready[data-ready=true]{color:#166534;background:#dcfce7}.zen-hint{color:#475569;margin:8px 0 0 38px;font-size:14px}.zen-label{color:#334155;margin:12px 0 6px 38px;font-size:13px;font-weight:700;display:block}.zen-textarea{resize:none;color:#0f172a;background:#ffffffd9;border:1px solid #cbd5e1;border-radius:12px;width:calc(100% - 38px);min-height:88px;margin-left:38px;padding:10px 12px;font-size:15px;line-height:1.6;overflow:hidden}.zen-textarea:focus{border-color:#818cf8;outline:2px solid #a5b4fc}.zen-maths-tip{color:#64748b;margin:6px 0 0 38px;font-size:12px}.zen-row{flex-wrap:wrap;align-items:center;gap:10px;margin:10px 0 0 38px;display:flex}.zen-btn{color:#334155;background:#fff;border:1px solid #cbd5e1;border-radius:12px;align-items:center;gap:8px;min-height:44px;padding:0 14px;font-size:14px;font-weight:700;display:inline-flex}.zen-paper-check{color:#475569;align-items:center;gap:8px;min-height:44px;font-size:13px;font-weight:600;display:inline-flex}.zen-paper-check input{width:20px;height:20px}.zen-file{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute}.zen-thumb{align-items:center;gap:10px;margin:10px 0 0 38px;display:flex}.zen-thumb img{object-fit:cover;border:3px solid #fff;border-radius:10px;width:64px;height:64px;box-shadow:0 4px 10px -4px #0006}.zen-thumb-meta{color:#475569;gap:4px;font-size:12px;display:grid}.zen-link{color:#4f46e5;cursor:pointer;background:0 0;border:none;padding:0;font-size:12px;font-weight:700;text-decoration:underline}.zen-slot{margin:10px 0 0 38px}.zen-foot{gap:12px;margin-top:24px;display:grid;position:sticky;bottom:12px}.zen-progress{text-align:center;color:#64748b;background:#ffffffe6;border-radius:9999px;padding:6px 12px;font-size:12px}.zen-primary{color:#fff;cursor:pointer;background:linear-gradient(90deg,#4f46e5,#7c3aed);border:none;border-radius:16px;min-height:52px;font-size:16px;font-weight:800}.zen-primary:disabled{opacity:.6;cursor:wait}.zen-breath{z-index:60;background:#0f172a73;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.zen-breath-card{text-align:center;background:#fffdf5;border-radius:20px;width:min(100%,360px);padding:24px 20px;box-shadow:0 20px 48px -20px #00000080}.zen-breath-emoji{font-size:28px}.zen-breath-title{color:var(--sad-ink);margin-top:8px;font-size:22px}.zen-breath-text{color:#475569;margin-top:6px;font-size:14px}.zen-breath-dot{background:#818cf8;border-radius:9999px;width:12px;height:12px;margin:16px auto 0;animation:.8s ease-in-out infinite alternate zen-breathe;display:block}@keyframes zen-breathe{0%{opacity:.5;transform:scale(.7)}to{opacity:1;transform:scale(1.25)}}@media (prefers-reduced-motion:reduce){.zen-breath-dot{animation:none}}@media print{.zen-stage{background:#fff;padding:0}.zen-paper[data-sheet=copie-zen]{box-shadow:none;max-width:none}.zen-row,.zen-foot,.zen-breath,.zen-file,.zen-qtitle button,.zen-ready,.zen-maths-tip,.zen-thumb-meta button{display:none!important}}