:root{--forest:#234b40;--deep:#173c31;--gold:#967026;--ink:#263f35;--muted:#59675f;--paper:#fcf9f2;--line:#d8dcd1;--side:300px;color-scheme:light}
*{box-sizing:border-box}body{margin:0;background:#f4f1e9;color:var(--ink);font:19px/1.8 Georgia,serif}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:var(--forest);text-underline-offset:4px}button:disabled{cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #a67b29;outline-offset:5px}button,a,input{touch-action:manipulation}[hidden]{display:none!important}
.skip-link{position:fixed;top:-80px;left:20px;z-index:100;background:white;padding:12px 20px}.skip-link:focus{top:12px}
.sidebar{position:fixed;inset:0 auto 0 0;width:var(--side);display:flex;flex-direction:column;background:var(--paper);border-right:1px solid var(--line);z-index:30;font-family:Arial,sans-serif}
.brand{padding:28px 28px 22px;border-bottom:1px solid var(--line)}.brand img{display:block;object-fit:contain;width:122px;height:auto;margin-bottom:10px}.brand span{font-size:13px;color:var(--forest)}
.progress-area{padding:24px 25px 14px}.progress-label{display:flex;justify-content:space-between;font-size:14px;gap:12px}.progress-label strong{color:var(--forest)}progress{display:block;width:100%;height:6px;border:0;border-radius:10px;overflow:hidden;margin:12px 0 0;background:#e6e9de}progress::-webkit-progress-bar{background:#e6e9de}progress::-webkit-progress-value{background:var(--forest);border-radius:10px}progress::-moz-progress-bar{background:var(--forest)}
#capitoli-nav{padding:8px 13px 18px;overflow:auto;flex:1;min-height:160px;scrollbar-width:thin}.nav-item{border:0;background:transparent;color:var(--ink);width:100%;padding:12px;display:flex;align-items:center;gap:13px;text-align:left;border-radius:12px;font:15px/1.45 Arial,sans-serif;margin:3px 0;min-height:52px}.nav-item:hover:not(:disabled){background:#eeefe4}.nav-item[aria-current]{background:#e6ecdf;color:var(--deep)}.nav-item:disabled{color:#71766e;opacity:1}.nav-item:disabled .nav-label{opacity:.85}.nav-number{flex:0 0 29px;width:29px;height:29px;border:1px solid #c8cfc2;border-radius:50%;display:grid;place-items:center;font-size:12px}.nav-item[aria-current] .nav-number,.nav-item.done .nav-number{background:var(--forest);color:white;border-color:var(--forest)}.nav-number svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:1.8}.nav-item .nav-label{flex:1}.nav-item.home{font-size:14px}.sidebar-footer{border-top:1px solid var(--line);padding:15px 25px 21px}.sidebar-footer p{font-size:12px;line-height:1.6;margin:0 0 8px;color:var(--muted)}.sidebar-footer button{padding:3px 0;background:none;border:0;text-decoration:underline;text-underline-offset:3px;font:12px/1.5 Arial,sans-serif;color:var(--forest)}
main{margin-left:var(--side);min-height:100vh;padding:0 40px}.review-bar{max-width:1040px;margin:auto;padding:15px 0;display:flex;gap:12px;flex-wrap:wrap;align-items:center;border-bottom:1px solid var(--line);font:12px/1.5 Arial,sans-serif;color:var(--muted)}.review-bar span:first-child{color:#775922;font-weight:bold}.page-footer{max-width:1040px;margin:40px auto 0;padding:22px 0;border-top:1px solid var(--line);font:12px/1.5 Arial,sans-serif;color:var(--muted)}
h1,h2,h3{font-weight:400;line-height:1.2;color:var(--forest);text-wrap:balance}h1{font-size:49px;letter-spacing:-.6px;margin:18px 0 28px}h2{font-size:32px}h3{font-size:27px;margin:42px 0 20px;scroll-margin-top:35px}p{margin:0 0 23px}ul{padding-left:25px}li{margin-bottom:12px}.eyebrow{font:12px/1.5 Arial,sans-serif;letter-spacing:1.7px;text-transform:uppercase;color:var(--gold);margin:0 0 18px}.reader{max-width:800px;margin:52px auto 50px;background:var(--paper);padding:52px 58px;border:1px solid #e3e2d6;border-radius:20px}.chapter-header{padding-bottom:24px;border-bottom:1px solid var(--line);margin-bottom:32px}.chapter-header h1{font-size:42px;margin:12px 0 22px}.chapter-header .eyebrow{margin:0}.chapter-meta{display:flex;justify-content:space-between;gap:20px;align-items:center;font:13px/1.5 Arial,sans-serif;color:var(--muted)}.text-link{border:0;background:none;padding:0;color:var(--forest);font:14px/1.5 Arial,sans-serif;text-decoration:underline;text-underline-offset:4px}.proposta{padding:20px 23px;border-left:3px solid var(--gold);background:#f2ecd9;border-radius:0 13px 13px 0;font-size:18px}.proposta > strong:first-child{display:block;color:#775922;font:700 12px/1.5 Arial,sans-serif;margin-bottom:12px}
.welcome{max-width:1040px;margin:48px auto}.hero{display:grid;grid-template-columns:1.2fr .85fr;gap:38px;align-items:center}.hero-visual{margin:0;border-radius:120px 120px 22px 22px;overflow:hidden;min-height:520px;align-self:stretch}.hero-visual img{display:block;width:100%;height:100%;object-fit:cover;object-position:75% center}.hero-copy{padding:20px 0}.hero-copy h1{font-size:clamp(39px,3.8vw,57px)}.hero-copy .intro-line{font-size:21px;line-height:1.6}.author{font:15px/1.5 Arial,sans-serif;margin:24px 0;color:var(--muted)}.path-facts{display:flex;gap:20px;flex-wrap:wrap;font:14px/1.5 Arial,sans-serif;color:var(--muted);margin:23px 0 30px}.path-facts span+span{border-left:1px solid #c4ccb9;padding-left:20px}.button{border:1px solid var(--forest);border-radius:32px;background:var(--forest);color:white;display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:53px;padding:13px 25px;font:18px/1.4 Arial,sans-serif;text-decoration:none}.button:hover:not(:disabled){background:var(--deep)}.button.secondary{background:transparent;color:var(--forest)}.button.secondary:hover{background:#e8edde}.button:disabled{color:#697568;border-color:#cbd0c4;background:#e5e8dd}.button-row{display:flex;align-items:center;gap:15px;flex-wrap:wrap}.quiet{font:13px/1.6 Arial,sans-serif;color:var(--muted)}.intro-reader{max-width:780px;margin:62px auto 0}.quote{font-size:28px;line-height:1.45;border-left:2px solid var(--gold);padding:8px 0 8px 28px;margin:46px 0}.how-it-works{border-top:1px solid var(--line);padding-top:28px;margin-top:36px}.how-it-works h2{font-size:29px}.how-it-works p{font:17px/1.75 Arial,sans-serif}
.quiz{margin-top:48px;padding-top:32px;border-top:1px solid #c4cebd}.quiz .eyebrow{font-size:11px}.quiz h2{font-size:29px;margin:10px 0 17px}.quiz-intro{font:15px/1.7 Arial,sans-serif;color:var(--muted)}fieldset{border:0;padding:0;margin:28px 0 20px;min-width:0}legend{font-size:21px;line-height:1.5;font-weight:400;margin-bottom:20px}.option{display:flex;align-items:flex-start;gap:14px;border:1px solid #c9d0c1;border-radius:13px;margin:12px 0;padding:17px 19px;background:#fefcf7;cursor:pointer;font:17px/1.65 Arial,sans-serif}.option:hover{background:#f0f2e7}.option:has(input:checked){background:#e7edde;border-color:var(--forest)}.option:has(input:focus-visible){outline:3px solid var(--gold);outline-offset:3px}.option.correct{border-color:var(--forest);background:#e7edde}.option input{margin:6px 0 0;accent-color:var(--forest);width:19px;height:19px;flex:0 0 19px}.option input:disabled{opacity:1}.feedback{padding:19px 22px;border-radius:13px;margin:20px 0;background:#f0e8d5;font:17px/1.7 Arial,sans-serif;color:#644b21}.feedback:empty{display:none}.feedback.success{background:#e5eddf;color:var(--forest)}.feedback strong{display:block;margin-bottom:5px}.feedback a{display:inline-block;margin-top:9px;color:inherit}.quiz-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px}.locked-caption{font:13px/1.6 Arial,sans-serif;color:var(--muted);margin:16px 0 0}.finish{max-width:780px}.finish-mark{width:68px;height:68px;border:1px solid #aabca0;background:#e5eddf;border-radius:50%;display:grid;place-items:center;color:var(--forest);font-size:34px;margin:8px 0 28px}.finish h1{font-size:43px}.finish .button-row{margin:30px 0}.finish .download-box{border-top:1px solid var(--line);padding-top:26px;margin-top:36px}.download-box h2{font-size:28px}.finish .secondary{font-size:17px}
.mobile-header,.menu-overlay{display:none}dialog{border:1px solid var(--line);border-radius:20px;background:var(--paper);max-width:550px;width:calc(100% - 32px);padding:34px;color:var(--ink)}dialog::backdrop{background:#10251dcc}dialog h2{margin-top:0}dialog p{font-size:18px}dialog .button{font-size:16px}
.reflection-question{display:block;font-size:23px;line-height:1.5;color:var(--forest);margin:24px 0 18px}.reflection textarea{display:block;width:100%;min-height:235px;padding:18px 20px;border:1px solid #a6b49b;border-radius:14px;background:#fffef9;color:var(--ink);font:18px/1.8 Georgia,serif;resize:vertical;margin:24px 0 14px}.reflection textarea::placeholder{color:#6b766a}.reflection textarea:focus-visible{outline:3px solid var(--gold);outline-offset:4px}.chapter-body strong,.intro-reader strong{font-weight:700}
@media(min-width:1600px){main{padding:0 68px}.hero{gap:60px}}
@media(max-width:1150px) and (min-width:861px){:root{--side:260px}main{padding:0 26px}.hero{gap:20px;grid-template-columns:1.2fr .7fr}.hero-visual{min-height:480px}.hero-copy h1{font-size:42px}.reader{padding:38px 35px}.nav-item{font-size:14px}}
@media(max-width:860px){body{font-size:18px}.mobile-header{position:sticky;top:0;height:76px;display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:var(--paper);z-index:40;border-bottom:1px solid var(--line);font:19px/1.2 Georgia,serif}.mobile-header small{display:block;font:12px/1.4 Arial,sans-serif;color:var(--muted);margin-top:4px}.menu-toggle{font:16px/1.3 Arial,sans-serif;min-height:44px;border:1px solid #c6cfbd;background:transparent;color:var(--forest);padding:10px 14px;border-radius:23px}.menu-toggle span{margin-left:0}.sidebar{top:76px;width:min(330px,88vw);transform:translateX(-100%);visibility:hidden;height:calc(100dvh - 76px)}body[data-menu="open"] .sidebar{transform:none;visibility:visible}body[data-menu="open"]{overflow:hidden}.menu-overlay:not([hidden]){display:block;position:fixed;inset:76px 0 0;background:#173c3180;border:0;z-index:20}.brand{padding:20px 25px 14px}.brand img{width:95px;margin-bottom:5px}.progress-area{padding-top:17px}main{margin:0;padding:0 22px;min-height:calc(100vh - 76px)}.review-bar{font-size:11px;padding:12px 0;gap:3px 12px}.review-bar span:last-child{flex-basis:100%}.welcome{margin:30px auto}.hero{gap:25px;grid-template-columns:1fr}.hero-copy{padding:10px 0}.hero-copy h1{font-size:41px;margin-top:12px}.hero-copy .intro-line{font-size:20px}.hero-visual{height:240px;min-height:0;border-radius:80px 80px 18px 18px}.hero-visual img{object-position:center 73%}.intro-reader{margin-top:36px}.intro-reader h2{font-size:29px}.reader{margin:25px auto 35px;padding:30px 24px;border-radius:17px}.chapter-header h1{font-size:34px}.chapter-meta{align-items:flex-start;font-size:12px;gap:12px}.chapter-header{padding-bottom:22px}.chapter-header .text-link{font-size:12px}h3{font-size:25px;scroll-margin-top:98px}.proposta{font-size:17px;padding:17px 18px}.quiz{margin-top:36px}.quiz h2{font-size:27px}.option{font-size:17px;padding:15px}.button{font-size:17px;padding:13px 21px}.quiz-actions{align-items:stretch;flex-direction:column}.quiz-actions .button{width:100%}.quote{font-size:25px;padding-left:20px}.finish h1{font-size:35px}.finish .button-row .button{width:100%}.path-facts{gap:14px}.path-facts span+span{padding-left:14px}.page-footer{margin-top:25px}#titolo-capitolo{scroll-margin-top:100px}}
@media(max-width:420px){main{padding:0 14px}.reader{padding:27px 21px}.hero-copy h1{font-size:37px}.chapter-header h1{font-size:31px}.mobile-header{padding:12px 16px}.brand{padding-top:14px}.sidebar-footer{padding-bottom:14px}}
@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}.sidebar{transition:transform .2s ease}}