@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{--bg:#f5f5f0;--card:#fff;--ink:#172c35;--muted:#748087;--line:#e0e5df;--accent:#ad283e;--accent-soft:#fff0f1;--teal:#176652;--teal-soft:#e9f3ef;--gold:#b3873e;--shadow:0 8px 30px #132e3507;--radius:20px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:'DM Sans',system-ui,sans-serif;font-size:15px;line-height:1.55}h1,h2,h3,.metric strong{font-family:Manrope,system-ui,sans-serif}h1{font-size:clamp(27px,4vw,38px);line-height:1.2;letter-spacing:-1.3px;font-weight:800;margin:0 0 10px}h2{font-size:21px;line-height:1.4;letter-spacing:-.6px;margin:0 0 12px}h3{font-size:17px;margin:0 0 8px}p{margin:0 0 14px}button,input,select{font:inherit}button,a,input,select{outline-offset:4px}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}button{border:0}button:focus-visible,a:focus-visible{outline:3px solid #bc6172}input,select{color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:11px;padding:12px 14px;width:100%}label{display:block;font-size:12px;font-weight:700;letter-spacing:.2px;margin-bottom:6px}.app-shell{display:flex;min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:246px;background:var(--ink);color:#edf0ed;padding:32px 22px;display:flex;flex-direction:column;z-index:20}.brand{display:flex;align-items:center;gap:14px;color:#fff;margin-bottom:52px}.brand:hover{text-decoration:none}.brand-mark{font-size:30px;font-style:italic;font-weight:900;border:1px solid #ffffff30;border-radius:13px;width:54px;height:54px;display:grid;place-items:center;position:relative}.brand-mark>span{position:absolute;top:-5px;right:-5px;color:#fab1b3;font-size:19px;background:var(--ink);line-height:1}.brand strong{font-size:22px;letter-spacing:1px;display:block;line-height:1.1}.brand small{font-size:9px;letter-spacing:3px;color:#afb8b6}.side-label{font-size:9px;letter-spacing:2px;color:#a6b5b7;margin:0 14px 17px}.sidebar nav{display:grid;gap:6px}.sidebar nav button{background:none;color:#aebcc0;text-align:left;border-radius:11px;padding:14px 13px;display:flex;gap:14px;align-items:center;font-size:20px}.sidebar nav button span{font-size:13px;font-weight:500}.sidebar nav button.active{background:#ffffff10;color:white;box-shadow:inset 3px 0 #edacaf}.sidebar nav button:hover{background:#ffffff08;color:white}.sidebar-bottom{margin-top:auto;padding:30px 12px 0;font-size:10px;line-height:1.7;color:#a5b6b6}.status-dot{display:inline-block;background:#94c6af;width:6px;height:6px;border-radius:50%;margin-right:6px}.side-foot{border-top:1px solid #ffffff13;padding-top:23px;margin-top:25px;letter-spacing:2px;font-size:10px}.side-foot span{letter-spacing:0;font-size:12px;color:#ccd6d3}.content-shell{margin-left:246px;width:calc(100% - 246px)}.topbar{height:84px;display:flex;justify-content:space-between;align-items:center;padding:0 5%;border-bottom:1px solid var(--line);background:var(--bg)}.crumb{font-size:12px;font-weight:600}.crumb span{color:#afb5ae;margin:0 12px}.top-actions{display:flex;gap:15px;align-items:center}.quiet{color:var(--muted);background:none;font-size:18px;padding:8px}.avatar{border-radius:50%;background:#dce7de;width:32px;height:32px;display:grid;place-items:center;font-size:10px;font-weight:800;color:var(--teal)}main{max-width:1280px;margin:auto;padding:38px 5% 48px;min-height:calc(100vh - 141px)}footer{padding:18px 5%;border-top:1px solid var(--line);font-size:10px;color:var(--muted);text-align:center}footer span{margin:0 8px}.eyebrow{font-size:10px;text-transform:uppercase;letter-spacing:2.2px;color:var(--teal);font-weight:700;margin-bottom:13px}.muted{color:var(--muted)}.small{font-size:12px}.heading-row{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:30px}.date-tag{font-size:11px;border:1px solid var(--line);padding:8px 14px;border-radius:50px;white-space:nowrap;margin-top:6px;background:var(--card)}.hero{display:grid;grid-template-columns:1.45fr .7fr;gap:40px;padding:35px 38px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);position:relative;overflow:hidden;margin-bottom:24px}.hero h2{font-size:26px}.hero p{max-width:520px;color:var(--muted);font-size:14px}.hero-art{display:grid;place-items:center;position:relative;min-height:150px}.orbit{width:160px;height:160px;border:1px solid #b8cdbf;border-radius:50%;display:grid;place-items:center;background:radial-gradient(circle,#eaf2e9 0%,#f4f7f000 75%)}.orbit:before,.orbit:after{content:'';position:absolute;width:190px;height:95px;border:1px solid #b8cdbf70;border-radius:50%;transform:rotate(-35deg)}.orbit:after{transform:rotate(40deg)}.orbit span{font-family:Manrope;font-size:65px;font-weight:800;color:#b5c7b6;line-height:.9;z-index:1}.orbit small{display:block;font-size:10px;letter-spacing:3px;text-align:center;font-weight:500;margin-top:10px}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:11px;padding:12px 18px;background:var(--accent);color:#fff;font-weight:600;font-size:13px}.button:hover{filter:brightness(.94);text-decoration:none}.button.secondary{background:var(--card);color:var(--ink);border:1px solid var(--line)}.button.teal{background:var(--teal)}.button.ghost{background:none;border:1px solid var(--line);color:var(--ink)}.button.small{padding:8px 12px;font-size:11px}.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-bottom:34px}.metric{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 23px;display:grid;gap:4px}.metric strong{font-size:27px;font-weight:800}.metric span{font-size:11px;color:var(--muted)}.metric .tiny{font-size:10px;color:var(--teal)}.section-title{display:flex;justify-content:space-between;align-items:center;margin:0 0 17px}.section-title h2{font-size:18px;margin:0}.section-title .muted{font-size:11px}.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.mode-card{border:1px solid var(--line);border-radius:var(--radius);padding:27px;background:var(--card);display:flex;gap:22px;align-items:flex-start}.mode-icon{border-radius:13px;background:var(--teal-soft);color:var(--teal);width:45px;height:45px;flex-shrink:0;display:grid;place-items:center;font-size:24px}.mode-card:nth-child(2) .mode-icon{background:var(--accent-soft);color:var(--accent)}.mode-card p{font-size:12px;color:var(--muted);margin-bottom:17px}.mode-card .button{padding:9px 14px;font-size:11px}.note{font-size:12px;padding:16px 19px;background:#f0eee4;border:1px solid #e8e3cf;border-radius:12px;margin-top:22px;color:#746447}.note.success{background:var(--teal-soft);border-color:#cedfd7;color:var(--teal)}.note.danger{background:var(--accent-soft);border-color:#efd1d7;color:var(--accent)}.toolbar{display:grid;grid-template-columns:1fr 1.15fr;gap:15px;margin-bottom:20px}.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px}.study-layout{display:grid;grid-template-columns:minmax(0,1fr) 245px;gap:22px}.q-header{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:22px}.q-badges{display:flex;gap:7px;flex-wrap:wrap}.pill{font-size:10px;font-weight:600;padding:5px 9px;border-radius:6px;background:var(--teal-soft);color:var(--teal)}.pill.gray{color:var(--muted);background:#eff0ed}.pill.warn{color:#98723e;background:#fbf0da}.pill.red{color:var(--accent);background:var(--accent-soft)}.bookmark{font-size:21px;border:1px solid var(--line);border-radius:9px;background:var(--card);width:37px;height:37px;color:var(--muted)}.bookmark.saved{color:var(--accent);background:var(--accent-soft)}.question-text{font-size:20px;line-height:1.5;letter-spacing:-.3px;margin-bottom:25px}.options{display:grid;gap:10px}.option{display:flex;gap:15px;align-items:center;padding:14px 16px;border:1px solid var(--line);border-radius:12px;width:100%;text-align:left;color:var(--ink);background:var(--card);font-size:14px;line-height:1.5}.option-label{border:1px solid var(--line);color:var(--muted);width:28px;height:28px;border-radius:8px;display:grid;place-items:center;flex-shrink:0;font-size:11px;font-weight:700}.option:hover:not(:disabled){border-color:#bccbbf;background:#fafbf8}.option.selected{border-color:var(--ink);background:#edf1f0}.option.correct{border-color:#75ad92;background:var(--teal-soft)}.option.correct .option-label{background:var(--teal);color:white;border-color:var(--teal)}.option.wrong{border-color:#d994a1;background:var(--accent-soft)}.option:disabled{opacity:1}.feedback{margin-top:22px;padding-top:22px;border-top:1px solid var(--line)}.feedback h3{color:var(--teal)}.comment{margin-top:14px;background:var(--bg);border-radius:13px;padding:18px;font-size:13px}.comment p:last-child{margin-bottom:0}.source-links{display:grid;gap:7px;margin-top:12px;font-size:11px}.q-footer{display:flex;justify-content:space-between;align-items:center;margin-top:27px;padding-top:20px;border-top:1px solid var(--line);gap:10px}.q-jump{width:73px;padding:8px;font-size:12px}.side-panel{align-self:start;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:21px}.side-panel h3{font-size:13px}.question-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin-top:13px;max-height:340px;overflow:auto;padding-right:3px}.question-grid button{border-radius:6px;border:1px solid var(--line);background:var(--card);color:var(--muted);font-size:10px;padding:6px 0;min-height:28px}.question-grid button.active{background:var(--ink);color:white}.question-grid button.done{background:var(--teal-soft);color:var(--teal)}.question-grid button.flagged{box-shadow:inset 0 -3px var(--gold)}.question-grid button.active.done{background:var(--teal);color:white}.toggle{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:400;margin-bottom:11px}.toggle input{width:15px;height:15px;accent-color:var(--teal)}.list{display:grid;gap:11px}.list-row{border:1px solid var(--line);background:var(--card);border-radius:12px;padding:17px 20px;display:flex;align-items:center;justify-content:space-between;gap:15px}.list-row strong{font-size:14px}.list-row p{margin:4px 0 0;color:var(--muted);font-size:11px}.row-actions{display:flex;gap:8px}.setup-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:20px 0}.setup-grid .full{grid-column:1/-1}.sim-bar{display:flex;justify-content:space-between;align-items:center;background:var(--ink);color:white;border-radius:14px;padding:16px 24px;margin-bottom:20px}.sim-bar .timer{font-variant-numeric:tabular-nums;font-family:Manrope;font-size:23px;letter-spacing:1px}.sim-bar .timer.urgent{color:#ffb0ad}.sim-bar .small{opacity:.65}.empty{text-align:center;padding:55px 20px;background:var(--card);border:1px dashed var(--line);border-radius:var(--radius);color:var(--muted)}.empty h2{color:var(--ink)}.score-ring{width:140px;height:140px;border:8px solid #dbe9df;border-radius:50%;display:grid;place-items:center;margin:0 auto 18px;color:var(--teal)}.score-ring strong{font-family:Manrope;font-size:37px;line-height:1}.score-ring small{display:block;font-size:11px;text-align:center;margin-top:4px}.results-head{text-align:center}.review-row{margin-top:20px;padding-top:20px;border-top:1px solid var(--line)}.review-row .question-text{font-size:16px;margin-bottom:10px}.review-row .options{gap:5px}.review-row .option{padding:9px 13px;font-size:12px}.review-filter{display:flex;gap:8px;margin:22px 0}.loading{padding:60px;text-align:center;color:var(--muted)}#toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);padding:12px 20px;border-radius:11px;background:var(--ink);color:white;box-shadow:0 4px 22px #0002;font-size:13px;z-index:100;max-width:90vw;display:none}.overlay{position:fixed;inset:0;background:#0c2437a3;z-index:80;display:grid;place-items:center;padding:20px}.dialog{background:var(--card);border-radius:20px;padding:28px;max-width:460px;width:100%}.dialog h2{font-size:22px}.dialog p{color:var(--muted);font-size:14px}.skip{position:fixed;top:-90px;left:15px;padding:12px;z-index:100;background:#fff}.skip:focus{top:10px}.progress{height:5px;background:var(--line);border-radius:10px;overflow:hidden;margin-top:10px}.progress span{display:block;height:100%;background:var(--teal)}.source-image{max-width:100%;border:1px solid var(--line);border-radius:8px;margin-top:12px}.text-large{font-size:17px}.text-large .question-text{font-size:23px}.text-large .option{font-size:17px}.dark{--bg:#112129;--card:#1b2f39;--ink:#f0f3ed;--muted:#a3b0b4;--line:#34454d;--teal:#8dc1aa;--teal-soft:#263f38;--accent:#d97087;--accent-soft:#493039;--shadow:none}.dark .sidebar{background:#071820}.dark .brand-mark>span{background:#071820}.dark .hero-art .orbit span{color:#668b75}.dark .option.selected{background:#364b54}.dark .option:hover:not(:disabled){background:#253b45}.dark .sim-bar{background:#071820}.dark .note{background:#403a29;border-color:#645535;color:#e0c695}.dark .pill.gray{background:#2e4148}.dark .button{color:white}.dark .button.teal{background:#276950}.dark .question-grid button.active{background:#bdd0d0;color:#112129}.dark .score-ring{border-color:#375548}.dark .avatar{background:#304839;color:#cee1d3}
@media(min-width:1500px){main{padding-top:50px}.hero{padding:40px}}@media(max-width:1100px){.sidebar{width:204px;padding:28px 15px}.content-shell{margin-left:204px;width:calc(100% - 204px)}.metrics{gap:10px}.metric{padding:16px}.study-layout{grid-template-columns:minmax(0,1fr) 205px}.mode-card{padding:22px;gap:14px}.hero{padding:28px;gap:18px}}@media(max-width:850px){.sidebar{position:relative;width:100%;height:auto;padding:15px 20px}.app-shell{display:block}.brand{margin:0 0 16px;gap:10px}.brand-mark{width:38px;height:38px;font-size:22px}.brand strong{font-size:19px}.brand small{font-size:8px}.sidebar nav{display:flex;overflow:auto;gap:4px}.sidebar nav button{padding:10px 12px;white-space:nowrap;font-size:17px;gap:7px}.sidebar nav button span{font-size:11px}.side-label,.sidebar-bottom{display:none}.content-shell{margin:0;width:100%}.topbar{height:60px;padding:0 22px}main{padding:28px 22px}.study-layout{grid-template-columns:1fr}.side-panel{order:2}.question-grid{grid-template-columns:repeat(10,1fr);max-height:140px}.hero{grid-template-columns:1fr .5fr}.hero-art .orbit{width:120px;height:120px}.orbit:before,.orbit:after{width:145px;height:75px}.orbit span{font-size:48px}.date-tag{display:none}.metric strong{font-size:24px}.mode-grid{gap:13px}.mode-card{display:block}.mode-icon{margin-bottom:17px}}@media(max-width:540px){.hero{grid-template-columns:1fr;padding:24px}.hero-art{display:none}.metrics{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:25px}.metric{padding:16px 18px}.heading-row{margin-bottom:22px}.mode-grid{grid-template-columns:1fr}.mode-card{display:flex;padding:22px}.mode-icon{margin:0}.toolbar,.setup-grid{grid-template-columns:1fr}.panel{padding:20px}.q-header{margin-bottom:18px}.question-text{font-size:18px}.option{font-size:13px;padding:12px;gap:10px}.option-label{width:25px;height:25px}.q-footer{flex-wrap:wrap}.list-row{align-items:flex-start;flex-direction:column}.row-actions{width:100%}.sim-bar{padding:13px 16px;gap:10px}.sim-bar .timer{font-size:19px}.sim-bar .button{padding:9px}.top-actions{gap:6px}.crumb{font-size:10px}.crumb span{margin:0 6px}.avatar{display:none}.question-grid{grid-template-columns:repeat(8,1fr)}.sidebar nav button span{font-size:10px}.sidebar nav button{padding:9px 8px}.results-head .metrics{margin-top:22px}.review-filter{flex-wrap:wrap}.actions .button{flex-grow:1}}

/* Palette MMG: rubino, celeste e verde chirurgico in toni tenui. */
:root{--bg:#f5f9fc;--ink:#203440;--navy:#34718c;--accent:#a84b60;--accent-soft:#faeef1;--teal:#31765f;--teal-soft:#eaf5ef;--line:#dae7ec;--shadow:0 10px 30px #34718c0b}
.sidebar{background:#fff;color:var(--ink);border-right:1px solid var(--line)}.brand{color:var(--navy);justify-content:center;margin-bottom:28px}.brand-logo{display:block;width:172px;height:120px;object-fit:contain;image-rendering:pixelated}.avatar-logo{width:44px;height:44px;object-fit:contain;image-rendering:pixelated}.brand small{color:var(--muted)}.side-label,.sidebar-bottom{color:var(--muted)}.sidebar nav button{color:var(--muted)}.sidebar nav button.active{background:#edf5f9;color:var(--navy);box-shadow:inset 4px 0 #a84b60}.sidebar nav button:hover{background:#f3f8fb;color:var(--navy)}.side-foot{border-color:var(--line)}.side-foot span{color:var(--muted)}.hero{background:linear-gradient(135deg,#fff4f6,#eaf5fb 64%,#edf8f2)}.hero h2{color:var(--navy)}.button.teal{background:var(--teal);color:#fff}.mode-card:nth-child(2) .mode-icon{background:#eaf4fa;color:var(--navy)}.note{background:#f0f5f8;border-color:#dce7ec;color:#4c6470}.button:focus-visible,a:focus-visible{outline:3px solid #a84b60}.dark{--navy:#a8d0e2;--accent:#a94c66;--accent-soft:#462b37;--teal:#98cdb7;--teal-soft:#263f38;--bg:#14232d;--card:#20323c;--ink:#edf5f9;--muted:#b2c2cb;--line:#3c505b}.dark .sidebar{background:#10202a}.dark .sidebar nav button.active,.dark .sidebar nav button:hover{background:#273e4b;color:#cde5f1}.dark .brand{color:#d8ebf6}.dark .hero{background:linear-gradient(135deg,#392c38,#203b4b 64%,#263e35)}.dark .button.teal{background:#34735e;color:#fff}.dark .note{background:#263c47;border-color:#405967;color:#c9dce6}
.hero-logo{display:block;width:100%;height:auto;max-width:420px;object-fit:contain;image-rendering:pixelated}.hero-art{min-width:0}
@media(max-width:850px){.brand{justify-content:flex-start;margin:0 0 10px}.brand-logo{width:125px;height:76px}}@media(max-width:540px){.hero-art{display:grid;place-items:center;margin:0 auto;width:100%;max-width:280px}.avatar-logo{width:38px;height:38px}}

.hero-logo{image-rendering:auto}