/* Layout: guida a capitoli. Testata gialla, colonna di lettura con indice dei capitoli a lato, schede domanda-risposta come centro del sito. */
:root {
  --paper: #f2f6f5; --card: #ffffff; --ink: #0b3c49; --text: #183a43; --muted: #4f6a70; --rule: #cfdedb;
  --sun: #ffd23f; --coral: #ff5d3a; --mint: #bfe8de; --deep: #0b3c49; --on-deep: #f2f6f5;
  --f-display: "Bricolage Grotesque", "Trebuchet MS", sans-serif;
  --f-body: "Figtree", "Segoe UI", Roboto, Arial, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  --wrap: 70rem; --r: 14px;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --paper: #0a1f25; --card: #10303a; --ink: #f2f6f5; --text: #dbe8e6; --muted: #9fb8b6; --rule: #22474f;
  --mint: #1b4a47; --deep: #06161a; --on-deep: #f2f6f5; color-scheme: dark; } }
:root[data-theme="dark"] { --paper: #0a1f25; --card: #10303a; --ink: #f2f6f5; --text: #dbe8e6; --muted: #9fb8b6; --rule: #22474f;
  --mint: #1b4a47; --deep: #06161a; --on-deep: #f2f6f5; color-scheme: dark; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--text); font-family: var(--f-body); font-size: 1.07rem; line-height: 1.65; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration-color: var(--coral); text-decoration-thickness: 2px; text-underline-offset: .2em; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }
h1, h2, h3 { font-family: var(--f-display); color: var(--ink); margin: 0; line-height: 1.08; text-wrap: balance; }
h1 { font-size: clamp(2.2rem, 6vw, 4rem); font-weight: 800; letter-spacing: -.025em; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; letter-spacing: -.015em; }
h3 { font-size: 1.15rem; font-weight: 600; }
p { margin: 0; }
.wrap { max-width: var(--wrap); margin-inline: auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.lbl { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }

/* testata */
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--deep); }
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 9; background: var(--deep); color: var(--on-deep); }
.top .wrap { display: flex; align-items: center; gap: 1rem; padding-block: .6rem; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--on-deep); margin-right: auto; }
.logo img { width: 40px; height: 40px; }
.logo b { font-family: var(--f-display); font-weight: 800; font-size: 1.25rem; letter-spacing: -.01em; }
.logo b i { font-style: normal; color: var(--sun); }
.menu { display: flex; gap: .3rem; flex-wrap: wrap; }
.menu a { text-decoration: none; padding: .35rem .75rem; border-radius: 999px; font-weight: 600; font-size: .95rem; color: var(--on-deep); }
.menu a:hover { background: rgba(255,255,255,.1); }
.menu a[aria-current="page"] { background: var(--sun); color: #0b3c49; }

/* bottoni */
.btn { display: inline-flex; align-items: center; gap: .5rem; padding: .7rem 1.2rem; border-radius: 10px; font-weight: 600; text-decoration: none; border: 2px solid var(--ink); background: transparent; color: var(--ink); font: inherit; font-weight: 600; cursor: pointer; }
.btn-main { background: var(--coral); border-color: var(--coral); color: #fff; }
.btn-main:hover { filter: brightness(1.05); }
.btn-row { display: flex; flex-wrap: wrap; gap: .6rem; }

/* home */
.hero { background: var(--sun); color: #0b3c49; }
.hero .wrap { padding-block: clamp(2.2rem, 6vw, 4rem); display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 2.5rem; align-items: end; }
.hero h1 { color: #0b3c49; }
.hero h1 em { font-style: normal; background: linear-gradient(transparent 62%, #ffffff 62%); }
.hero p.lead { font-size: 1.2rem; margin-top: 1rem; max-width: 34rem; color: #183a43; }
.ask-box { background: #0b3c49; color: #f2f6f5; border-radius: var(--r); padding: 1.3rem; display: grid; gap: .7rem; box-shadow: 10px 10px 0 #ff5d3a; }
.ask-box label { font-family: var(--f-display); font-weight: 800; font-size: 1.35rem; color: #f2f6f5; }
.ask-box textarea { font: inherit; border: 0; border-radius: 10px; padding: .8rem; min-height: 6.5rem; resize: vertical; background: #f2f6f5; color: #0b3c49; width: 100%; }
.ask-box p { font-size: .9rem; color: #bfe8de; }
.chapters { display: grid; gap: 0; border-top: 2px solid var(--ink); }
.chapters a { display: grid; grid-template-columns: 4rem minmax(0,1fr) auto; gap: 1rem; align-items: baseline; padding: 1.1rem 0; border-bottom: 1px solid var(--rule); text-decoration: none; }
.chapters a:hover h3 { text-decoration: underline; text-decoration-color: var(--coral); }
.chapters .n { font-family: var(--f-display); font-weight: 800; font-size: 2.2rem; color: var(--coral); line-height: 1; }
.chapters h3 { font-size: 1.4rem; }
.chapters p { color: var(--muted); }
.chapters .go { font-family: var(--f-mono); color: var(--muted); }
.sec { padding-block: clamp(2.2rem, 5vw, 3.5rem); }
.sec-head { display: grid; gap: .4rem; margin-bottom: 1.4rem; max-width: 42rem; }
.cities { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); gap: 1rem; }
.city { background: var(--card); border-radius: var(--r); padding: 1.2rem; display: grid; gap: .4rem; border-left: 6px solid var(--sun); }
.city h3 { font-size: 1.5rem; }
.city.bari { border-left-color: var(--coral); }

/* pagine capitolo */
.chap-head { background: var(--deep); color: var(--on-deep); }
.chap-head .wrap { padding-block: clamp(2rem, 5vw, 3.2rem); display: grid; gap: .6rem; }
.chap-head h1 { color: var(--on-deep); font-size: clamp(2rem, 5vw, 3.2rem); }
.chap-head .lbl { color: var(--sun); }
.chap-head p { max-width: 42rem; color: #cfe3df; font-size: 1.15rem; }
.layout { display: grid; grid-template-columns: 15rem minmax(0, 1fr); gap: 3rem; padding-block: 2.5rem 3.5rem; align-items: start; }
.toc { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 5rem); display: grid; gap: .2rem; }
.toc .lbl { margin-bottom: .4rem; }
.toc a { display: grid; grid-template-columns: 1.6rem 1fr; gap: .4rem; padding: .45rem .6rem; border-radius: 8px; text-decoration: none; font-weight: 600; color: var(--muted); }
.toc a span { font-family: var(--f-mono); color: var(--coral); }
.toc a[aria-current="page"] { background: var(--card); color: var(--ink); }
.read { max-width: 44rem; display: grid; gap: 1.1rem; }
.read h2 { margin-top: 1.2rem; }
.read ul, .read ol { margin: 0; padding-left: 1.3rem; display: grid; gap: .35rem; }
.read b { color: var(--ink); }
.box { background: var(--mint); border-radius: var(--r); padding: 1rem 1.2rem; }
.next { margin-top: 1.5rem; display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; border-top: 2px solid var(--ink); padding-top: 1rem; }
.next a { text-decoration: none; display: grid; }
.next a b { font-family: var(--f-display); font-size: 1.25rem; color: var(--ink); }
.tbl { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; min-width: 34rem; background: var(--card); border-radius: var(--r); overflow: hidden; }
th, td { text-align: left; padding: .7rem .8rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
thead th { background: var(--ink); color: var(--paper); font-family: var(--f-mono); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; }
tbody th { font-weight: 600; color: var(--ink); }

/* video */
.vids { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 17rem), 1fr)); gap: 1.2rem; }
.read .vids { grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); }
.vid { margin: 0; background: var(--card); border-radius: var(--r); overflow: hidden; display: grid; }
.vid-frame { position: relative; aspect-ratio: 16/9; width: 100%; border: 0; padding: 0; cursor: pointer; background: repeating-linear-gradient(-45deg, #0b3c49 0 14px, #0e4755 14px 28px); display: grid; place-items: center; }
.vid-frame img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.vid-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.vid-play { position: relative; width: 62px; height: 62px; border-radius: 50%; background: var(--sun); box-shadow: 0 6px 18px rgba(0,0,0,.35); }
.vid-play::after { content: ""; position: absolute; left: 25px; top: 19px; border-left: 18px solid #0b3c49; border-top: 12px solid transparent; border-bottom: 12px solid transparent; }
.vid figcaption { padding: .9rem 1rem 1.1rem; display: grid; gap: .2rem; }
.vid figcaption b { font-family: var(--f-display); font-size: 1.1rem; color: var(--ink); }
.vid figcaption span:last-child { color: var(--muted); font-size: .95rem; }

/* domande */
details { background: var(--card); border-radius: var(--r); padding: .9rem 1.1rem; }
details + details { margin-top: .6rem; }
summary { cursor: pointer; font-weight: 600; color: var(--ink); list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-family: var(--f-mono); color: var(--coral); font-size: 1.2rem; }
details[open] summary::after { content: "–"; }
details p { margin-top: .6rem; }
.qa { background: var(--card); border-radius: var(--r); padding: 1.1rem 1.2rem; display: grid; gap: .5rem; margin-bottom: .9rem; }
.qa h3 a { text-decoration: none; }
.qa .ans { border-left: 4px solid var(--sun); padding-left: .9rem; display: grid; gap: .5rem; }
.esito { padding: .9rem 1.1rem; border-radius: var(--r); background: var(--mint); margin-bottom: 1rem; }
.esito.err { background: #ffe1d9; color: #6b1d0c; }
.ask-form { display: grid; gap: .6rem; background: var(--card); border-radius: var(--r); padding: 1.2rem; border-top: 6px solid var(--coral); }
.ask-form label { font-weight: 600; color: var(--ink); }
.ask-form select, .ask-form textarea, .ask-form input[type=email] { font: inherit; padding: .65rem .8rem; border: 1px solid var(--rule); border-radius: 10px; background: var(--paper); color: var(--text); width: 100%; }
.ask-form .check { font-weight: 400; display: flex; gap: .5rem; align-items: flex-start; color: var(--text); }
.ask-form .check input { margin-top: .35rem; }
.hp { position: absolute; left: -9999px; }
.note { color: var(--muted); font-size: .93rem; }

.qa-layout { padding-block: 0; grid-template-columns: minmax(0,1fr) 22rem; }
.qa-layout .ask-form { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 5rem); }
.req-form { margin-top: .5rem; scroll-margin-top: 6rem; }
.req-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr)); gap: .6rem; }
.req-row > div { display: grid; gap: .6rem; }
.ask-form input[type=tel], .ask-form input:not([type]) { font: inherit; padding: .65rem .8rem; border: 1px solid var(--rule); border-radius: 10px; background: var(--paper); color: var(--text); width: 100%; }
.city a { font-weight: 600; margin-top: .3rem; }
/* piede */
.foot { background: var(--deep); color: #cfe3df; }
.foot .wrap { padding-block: 2.2rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); gap: 1.5rem; }
.foot h3 { color: var(--sun); font-size: 1rem; margin-bottom: .5rem; }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .3rem; }
.foot a { color: #f2f6f5; }
.legal { background: #06161a; color: #9fb8b6; font-size: .85rem; }
.legal .wrap { padding-block: 1rem; }

@media (max-width: 820px) {
  .hero .wrap, .layout { grid-template-columns: 1fr; }
  .layout, .qa-layout { gap: 1.5rem; grid-template-columns: 1fr; }
  .qa-layout .ask-form { position: static; order: -1; }
  .ask-box { box-shadow: 6px 6px 0 #ff5d3a; margin-right: 6px; }
  .toc { position: static; display: flex; flex-wrap: wrap; gap: .3rem; }
  .toc .lbl { flex-basis: 100%; margin: 0; }
  .toc a { grid-template-columns: auto auto; padding: .3rem .6rem; background: var(--card); }
  .chapters a { grid-template-columns: 3rem minmax(0,1fr); }
  .chapters .go { display: none; }
}
@media (max-width: 520px) { .logo b { font-size: 1.1rem; } .menu a { padding: .3rem .55rem; font-size: .9rem; } }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* strumenti */
.tool fieldset { border: 0; padding: 1.2rem; margin: 0; background: var(--card); border-radius: var(--r); display: grid; gap: .6rem; }
.tool legend { font-family: var(--f-display); font-weight: 800; font-size: 1.3rem; color: var(--ink); padding: 0; float: left; width: 100%; margin-bottom: .3rem; }
.tool-form { display: grid; gap: 1rem; }
.tool input:not([type=radio]):not([type=range]):not([type=file]) { font: inherit; padding: .6rem .7rem; border: 1px solid var(--rule); border-radius: 10px; background: var(--paper); color: var(--text); width: 100%; min-width: 0; }
.rx { display: grid; grid-template-columns: minmax(6.5rem, auto) repeat(3, minmax(0, 1fr)); gap: .5rem; align-items: center; }
.rx b { color: var(--ink); font-size: .95rem; }
.reading { background: var(--mint); border-radius: 10px; padding: 0; }
.reading:not(:empty) { padding: .8rem 1rem; }
.reading ul { margin: .3rem 0 0; }
.q { font-weight: 600; color: var(--ink); margin-top: .4rem; }
.chips { display: flex; flex-wrap: wrap; gap: .4rem; }
.chips label { display: inline-flex; align-items: center; gap: .4rem; padding: .45rem .8rem; border: 1px solid var(--rule); border-radius: 999px; cursor: pointer; background: var(--paper); font-weight: 600; font-size: .95rem; }
.chips input { position: absolute; opacity: 0; pointer-events: none; }
.chips label:has(input:checked) { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.chips label:has(input:focus-visible) { outline: 3px solid var(--coral); outline-offset: 2px; }
.chips .upl { border-style: dashed; }
.result { border-radius: var(--r); padding: 1.3rem; display: grid; gap: .7rem; background: var(--card); border-left: 8px solid var(--rule); scroll-margin-top: 6rem; }
.result.green { border-left-color: #2bb673; }
.result.yellow { border-left-color: var(--sun); }
.result.blue { border-left-color: #3b82f6; }
.result h2 { margin: 0; }
.result ul { margin: 0; }
.sim { position: relative; border-radius: var(--r); overflow: hidden; background: #0b3c49; }
.sim canvas { display: block; width: 100%; height: auto; }
.sim-toggle { position: absolute; right: 12px; bottom: 12px; display: flex; background: rgba(11,60,73,.85); border-radius: 999px; padding: 4px; gap: 4px; }
.sim-toggle button { font: inherit; font-weight: 600; border: 0; border-radius: 999px; padding: .45rem .9rem; background: transparent; color: #f2f6f5; cursor: pointer; }
.sim-toggle button.on { background: var(--sun); color: #0b3c49; }
.sim-ctrl { display: grid; gap: .45rem; background: var(--card); border-radius: var(--r); padding: 1.1rem; }
.sim-ctrl input[type=range] { width: 100%; accent-color: var(--coral); }
.sim-ctrl label b { font-family: var(--f-mono); color: var(--coral); }
.tools-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); gap: 1rem; }
.tool-card { background: var(--deep); color: var(--on-deep); border-radius: var(--r); padding: 1.4rem; display: grid; gap: .5rem; text-decoration: none; }
.tool-card h3 { color: var(--sun); font-size: 1.5rem; }
.tool-card p { color: #cfe3df; }
.tool-card span.go { font-family: var(--f-mono); color: var(--coral); }
@media (max-width: 520px) { .rx { grid-template-columns: repeat(3, minmax(0, 1fr)); } .rx > span:first-child { display: none; } .rx > b { grid-column: 1 / -1; } .sim-toggle { position: static; margin: 8px; justify-content: center; } }