/* ============ Sanitest — tema allegro ============ */
:root {
  --bg: #ffffff;             /* bianco pulito */
  --bg-soft: #f4f3fb;        /* grigio-lilla tenue, per riquadri interni sul bianco */
  --card: #ffffff;
  --ink: #241c47;            /* blu-viola scuro, più morbido del nero */
  --muted: #666090;
  --line: #e8e6f5;
  --brand: #ff4d36;          /* corallo acceso */
  --brand-2: #ff8a00;        /* arancio acceso */
  --brand-soft: #ffe8e2;
  --sun: #ffb300;            /* giallo sole acceso */
  --mint: #00bf8a;           /* menta acceso */
  --sky: #0d93ef;            /* azzurro acceso */
  --grape: #7c3aed;          /* viola acceso */
  --pink: #ff2d87;           /* magenta acceso */
  --ok: #0ea96f;  --ok-soft: #dcf8ec;
  --bad: #e5304a; --bad-soft: #ffe3e3;
  --warn: #d9780a; --warn-soft: #fff4d6;
  --radius: 20px;
  --shadow: 0 2px 0 rgba(36,28,71,.05), 0 10px 30px -14px rgba(36,28,71,.18);
  --grad: linear-gradient(135deg, var(--brand), var(--brand-2));
  --hero: linear-gradient(120deg, #ffe1d6 0%, #fff2c7 45%, #d2f6ec 100%);
}
/* Sfondo sempre bianco: niente tema scuro automatico in base al sistema. */
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.6 "Nunito", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background-image: radial-gradient(circle at 8% 12%, rgba(255,179,0,.16) 0 140px, transparent 141px),
                    radial-gradient(circle at 92% 30%, rgba(0,191,138,.13) 0 180px, transparent 181px),
                    radial-gradient(circle at 70% 95%, rgba(124,58,237,.09) 0 200px, transparent 201px);
  background-attachment: fixed;
}
a { color: var(--brand); font-weight: 600; }
h1, h2, h3 { line-height: 1.2; font-weight: 800; }
h1 { font-size: 2rem; margin: 0 0 .4rem; }
h2 { font-size: 1.4rem; margin: 1.8rem 0 .9rem; }

/* Barra in alto */
.topbar {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 18px;
  padding: 12px 24px; background: color-mix(in srgb, var(--card) 88%, transparent); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line); flex-wrap: wrap;
}
.logo { font-weight: 900; font-size: 1.3rem; color: var(--ink); text-decoration: none; display: flex; gap: 8px; align-items: center; }
.logo-mark { background: var(--grad); color: #fff; border-radius: 12px; padding: 3px 9px; font-size: 1rem; transform: rotate(-6deg); box-shadow: 0 4px 10px -3px rgba(255,107,87,.6); }
.nav { display: flex; gap: 6px; flex-wrap: wrap; }
.nav a { color: var(--muted); text-decoration: none; padding: 7px 14px; border-radius: 99px; font-weight: 700; }
.nav a:hover { background: var(--brand-soft); color: var(--brand); }
.nav a.active { background: var(--grad); color: #fff; box-shadow: 0 6px 14px -6px rgba(255,107,87,.7); }

main { max-width: 1100px; margin: 0 auto; padding: 30px 20px 60px; }
.footer { text-align: center; color: var(--muted); font-size: .85rem; padding: 24px 16px 40px; }
.muted { color: var(--muted); }

/* Card */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.hero { padding: 40px 32px; background: var(--hero); border: 0; position: relative; overflow: hidden; }
.hero::after { content: "🩺 🧬 ⚗️ 🧲 📐"; position: absolute; right: 24px; bottom: 14px; font-size: 1.8rem; letter-spacing: 8px; opacity: .55; }
.hero h1 { font-size: 2.3rem; }
.hero p { font-size: 1.12rem; color: var(--ink); opacity: .8; max-width: 620px; }
.feature { text-decoration: none; color: inherit; display: block; transition: transform .15s, box-shadow .15s; border-width: 0; border-top: 6px solid var(--accent, var(--brand)); }
.feature:hover { transform: translateY(-4px) rotate(-.4deg); box-shadow: 0 16px 30px -14px var(--accent, var(--brand)); }
.grid > .feature:nth-child(5n+1) { --accent: var(--brand); }
.grid > .feature:nth-child(5n+2) { --accent: var(--mint); }
.grid > .feature:nth-child(5n+3) { --accent: var(--grape); }
.grid > .feature:nth-child(5n+4) { --accent: var(--sky); }
.grid > .feature:nth-child(5n+5) { --accent: var(--sun); }
.feature .ico { font-size: 2.1rem; display: inline-grid; place-items: center; width: 56px; height: 56px; border-radius: 16px; background: color-mix(in srgb, var(--accent, var(--brand)) 18%, transparent); }
.feature h3 { margin: .7rem 0 .3rem; }

/* Pulsanti */
.btn {
  display: inline-flex; align-items: center; gap: 6px; border: 2px solid var(--line); background: var(--card);
  color: var(--ink); padding: 9px 18px; border-radius: 99px; font: inherit; font-weight: 800; cursor: pointer; text-decoration: none;
  transition: transform .1s, box-shadow .15s;
}
.btn:hover { border-color: var(--brand); transform: translateY(-1px); }
.btn.primary { background: var(--grad); border-color: transparent; color: #fff; box-shadow: 0 8px 18px -8px rgba(255,107,87,.8); }
.btn.primary:hover { filter: brightness(1.05); }
.btn.danger { color: var(--bad); }
.btn:disabled { opacity: .45; cursor: default; transform: none; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

.chip { display: inline-block; font-size: .78rem; font-weight: 800; padding: 3px 11px; border-radius: 99px; background: var(--bg-soft); color: var(--muted); border: 1px solid var(--line); }
.chip.subj { color: #fff; border: none; }

/* Elenco test */
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
select, input[type=number], input[type=search] {
  font: inherit; padding: 8px 14px; border-radius: 99px; border: 2px solid var(--line); background: var(--card); color: var(--ink); font-weight: 600;
}
.test-item { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; border-left: 6px solid var(--sun); }
.test-item:nth-child(4n+2) { border-left-color: var(--mint); }
.test-item:nth-child(4n+3) { border-left-color: var(--sky); }
.test-item:nth-child(4n+4) { border-left-color: var(--grape); }
.test-item .year { font-size: 1.6rem; font-weight: 900; min-width: 74px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.test-item .info { flex: 1; min-width: 200px; }

/* Quiz */
.quiz-layout { display: grid; grid-template-columns: 1fr 260px; gap: 20px; align-items: start; }
@media (max-width: 820px) { .quiz-layout { grid-template-columns: 1fr; } }
.quiz-bar { position: sticky; top: 70px; z-index: 5; display: flex; gap: 12px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.timer { font-variant-numeric: tabular-nums; font-weight: 900; font-size: 1.3rem; background: var(--warn-soft); color: var(--warn); padding: 2px 12px; border-radius: 99px; }
.timer.low { color: #fff; background: var(--bad); }
.q-text { white-space: pre-line; font-size: 1.1rem; margin: 10px 0 18px; }
.opts { display: flex; flex-direction: column; gap: 10px; }
.opt {
  display: flex; gap: 12px; text-align: left; width: 100%; padding: 12px 14px; border-radius: 16px;
  border: 2px solid var(--line); background: var(--card); color: var(--ink); font: inherit; cursor: pointer; transition: transform .08s;
}
.opt:hover { border-color: var(--brand-2); transform: translateX(2px); }
.opt .letter { font-weight: 900; min-width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; background: var(--bg-soft); color: var(--muted); }
.opt.sel { border-color: var(--brand); background: var(--brand-soft); }
.opt.sel .letter { background: var(--grad); color: #fff; }
.opt.right { border-color: var(--ok); background: var(--ok-soft); }
.opt.right .letter { background: var(--ok); color: #fff; }
.opt.wrong { border-color: var(--bad); background: var(--bad-soft); }
.opt.wrong .letter { background: var(--bad); color: #fff; }
.opt:disabled { cursor: default; transform: none; }

.palette { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; }
.palette button {
  aspect-ratio: 1; border-radius: 10px; border: 2px solid var(--line); background: var(--card); color: var(--ink);
  font: inherit; font-size: .8rem; font-weight: 800; cursor: pointer; position: relative;
}
.palette button.done { background: var(--mint); color: #fff; border-color: var(--mint); }
.palette button.cur { outline: 3px solid var(--brand); outline-offset: 1px; }
.palette button.flag::after { content: ""; position: absolute; top: 3px; right: 3px; width: 8px; height: 8px; border-radius: 50%; background: var(--sun); box-shadow: 0 0 0 2px var(--card); }
.palette button.right { background: var(--ok); border-color: var(--ok); color: #fff; }
.palette button.wrong { background: var(--bad); border-color: var(--bad); color: #fff; }
.legend { font-size: .8rem; color: var(--muted); margin-top: 10px; }

/* Risultati */
.score-big { font-size: 3.2rem; font-weight: 900; line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 12px; margin: 16px 0; }
.stat { background: var(--bg-soft); border-radius: 16px; padding: 12px 14px; }
.stat b { display: block; font-size: 1.5rem; }
.bar { height: 10px; border-radius: 99px; background: var(--line); overflow: hidden; }
.bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--mint), var(--sky)); border-radius: 99px; }
table.subj-table { width: 100%; border-collapse: collapse; }
table.subj-table td, table.subj-table th { padding: 9px 6px; border-bottom: 1px solid var(--line); text-align: left; }
.review-q { margin-bottom: 14px; }

/* Builder */
.builder-row { display: grid; grid-template-columns: 1fr auto 90px; gap: 12px; align-items: center; padding: 10px 0; border-bottom: 1px dashed var(--line); }
.builder-row input { width: 90px; }

/* Teoria */
.theory-layout { display: grid; grid-template-columns: 270px 1fr; gap: 22px; align-items: start; }
@media (max-width: 820px) { .theory-layout { grid-template-columns: 1fr; } }
.toc { position: sticky; top: 76px; max-height: calc(100vh - 96px); overflow: auto; }
.toc a { display: block; padding: 7px 12px; border-radius: 12px; text-decoration: none; color: var(--ink); font-size: .95rem; font-weight: 600; }
.toc a:hover { background: var(--bg-soft); }
.toc a.active { background: var(--grad); color: #fff; }
.toc a.active .freq { color: #fff; }
.toc a.empty { color: var(--muted); }
.toc h4 { margin: 14px 10px 4px; font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.lesson { font-size: 1.03rem; }
.lesson h2 { color: var(--brand); }
.lesson h3 { margin-top: 1.4rem; padding-left: 10px; border-left: 5px solid var(--sun); }
.lesson table { border-collapse: separate; border-spacing: 0; width: 100%; margin: 14px 0; font-size: .95rem; border-radius: 14px; overflow: hidden; border: 1px solid var(--line); }
.lesson th, .lesson td { border-bottom: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
.lesson th { background: color-mix(in srgb, var(--sky) 18%, var(--card)); }
.lesson tr:nth-child(even) td { background: color-mix(in srgb, var(--sun) 7%, var(--card)); }
.lesson li { margin: 3px 0; }
.tip { background: var(--warn-soft); border-left: 6px solid var(--sun); padding: 12px 16px; border-radius: 14px; margin: 16px 0; }
.tip::before { content: "💡 "; }
.freq { color: var(--brand-2); letter-spacing: 1px; }

/* Schemi illustrati nelle lezioni */
.fig { margin: 18px 0; padding: 16px; border-radius: 18px; background: color-mix(in srgb, var(--sky) 8%, var(--card)); border: 2px dashed color-mix(in srgb, var(--sky) 45%, transparent); text-align: center; }
.fig svg { max-width: 100%; height: auto; }
.fig figcaption { margin-top: 8px; font-size: .9rem; color: var(--muted); font-weight: 600; }
/* colori usati negli SVG (cambiano da soli in tema scuro) */
.fig .s { stroke: var(--ink); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.fig .t { fill: var(--ink); font: 600 13px "Nunito", system-ui, sans-serif; }
.fig .tm { fill: var(--muted); font: 600 11px "Nunito", system-ui, sans-serif; }
.fig .c1 { fill: color-mix(in srgb, var(--brand) 30%, var(--card)); }
.fig .c2 { fill: color-mix(in srgb, var(--mint) 35%, var(--card)); }
.fig .c3 { fill: color-mix(in srgb, var(--sky) 35%, var(--card)); }
.fig .c4 { fill: color-mix(in srgb, var(--sun) 45%, var(--card)); }
.fig .c5 { fill: color-mix(in srgb, var(--grape) 30%, var(--card)); }
.fig .c6 { fill: color-mix(in srgb, var(--pink) 30%, var(--card)); }
.fig .k1 { stroke: var(--brand); } .fig .k2 { stroke: var(--mint); } .fig .k3 { stroke: var(--sky); } .fig .k5 { stroke: var(--grape); }
.fig .f1 { fill: var(--brand); } .fig .f2 { fill: var(--mint); } .fig .f3 { fill: var(--sky); } .fig .f5 { fill: var(--grape); }

.empty-state { text-align: center; padding: 40px 20px; color: var(--muted); }

/* Selettore del corso */
.corso-switch { display: flex; background: var(--bg-soft); border: 2px solid var(--line); border-radius: 99px; padding: 3px; gap: 2px; }
.corso-switch button { border: 0; background: transparent; color: var(--muted); font: inherit; font-size: .9rem; font-weight: 800; padding: 6px 14px; border-radius: 99px; cursor: pointer; }
.corso-switch button.active { background: linear-gradient(135deg, var(--mint), var(--sky)); color: #fff; }

/* Foto nelle lezioni */
.foto-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin: 18px 0; }
.foto { margin: 0; background: var(--card); border-radius: 18px; overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); }
.foto img { display: block; width: 100%; height: 220px; object-fit: cover; background: var(--bg-soft); }
.foto-row:has(.foto:only-child) .foto img { height: auto; max-height: 360px; object-fit: contain; }
.foto figcaption { padding: 10px 12px; font-size: .9rem; font-weight: 600; }
.foto .credit { display: block; margin-top: 4px; font-size: .74rem; font-weight: 500; color: var(--muted); }
.foto .credit a { font-weight: 600; }

/* ============ Teoria: copertina e indice per materia, come un libro ============ */
.m-tocbtn { width: 100%; justify-content: center; margin-bottom: 8px; }
.toc a.m-tocbtn { color: #fff; }
.toc-index { display: block; margin-bottom: 10px; padding: 7px 12px; border-radius: 12px; font-weight: 700; color: var(--grape); background: color-mix(in srgb, var(--grape) 10%, transparent); text-decoration: none; }
.book-cover { text-align: center; padding: 36px 24px; border-radius: var(--radius); margin: 18px 0 22px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--c) 16%, var(--bg-soft)), color-mix(in srgb, var(--c) 6%, var(--bg-soft))); border: 1px solid color-mix(in srgb, var(--c) 30%, transparent); }
.book-cover .book-ico { font-size: 2.6rem; }
.book-cover h1 { margin: 6px 0 2px; color: color-mix(in srgb, var(--c) 70%, var(--ink)); }
.book-cover .btn { margin-top: 14px; }
.book-index { padding: 8px 10px; }
.book-part { margin: 18px 10px 6px; font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.book-index .book-part:first-child { margin-top: 4px; }
.book-chap { display: flex; align-items: center; gap: 14px; padding: 12px 14px; border-radius: 14px; text-decoration: none; color: var(--ink); }
.book-chap:hover { background: var(--bg-soft); }
.book-chap.empty { color: var(--muted); }
.chap-n { flex: 0 0 auto; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: .85rem; background: var(--bg-soft); color: var(--muted); }
.chap-t { flex: 1; font-weight: 700; }
.chap-meta { flex: 0 0 auto; font-size: .85rem; color: var(--muted); white-space: nowrap; }
/* navigazione tra capitoli in fondo a ogni lezione, come le pagine di un libro */
.chap-nav { display: flex; gap: 14px; margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line); }
.chap-nav-btn { flex: 1; display: block; padding: 12px 16px; border-radius: 14px; background: var(--bg-soft); text-decoration: none; color: var(--ink); font-weight: 700; }
.chap-nav-btn:hover { background: color-mix(in srgb, var(--brand) 10%, var(--bg-soft)); }
.chap-nav-btn small { display: block; font-weight: 600; color: var(--muted); margin-bottom: 2px; }
.chap-nav-btn.next { text-align: right; }
@media print { .topbar, .footer, .no-print { display: none !important; } body { background: #fff; } main { padding: 0; } }

/* figure delle domande ritagliate dai PDF ufficiali */
.q-img { margin: 6px 0 14px; background: #fff; border-radius: 12px; padding: 8px; border: 1px solid var(--line, #e6e6ef); }
.q-img img { display: block; width: auto; height: auto; max-width: 100%; max-height: 420px; margin: 0 auto; }
.opt-img { height: 64px; width: auto; background: #fff; border-radius: 6px; }

/* ---------- spiegazioni, correzione immediata, punti deboli, ripasso, simulazione nuova ---------- */
.why { margin: 16px 0 4px; padding: 14px 18px; border-radius: 16px; background: linear-gradient(135deg, #fff7e0, #fff1ec); border: 1px solid #ffe2b8; }
.why-h { font-weight: 900; color: var(--warn); margin-bottom: 4px; }
.why p { margin: 0; line-height: 1.65; }
.why b { color: var(--ink); }
.why-f { margin-top: 10px; font-size: .9rem; color: var(--muted); display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.why-h + p + .why-f { border-top: 1px dashed #f3d2a6; padding-top: 10px; }
.topic-link { display: inline-flex; gap: 6px; align-items: center; font-weight: 800; color: var(--brand); text-decoration: none; background: var(--card); border: 1px solid var(--line); padding: 3px 12px; border-radius: 99px; }
.topic-link:hover { border-color: var(--brand); }
.verdict { margin-top: 14px; font-weight: 900; padding: 8px 14px; border-radius: 12px; display: inline-block; }
.verdict.ok { background: var(--ok-soft); color: var(--ok); }
.verdict.ko { background: var(--bad-soft); color: var(--bad); }
.weak { border-left: 6px solid var(--grape); }
.weak-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; margin: 12px 0; }
.weak-item { display: flex; flex-direction: column; gap: 4px; padding: 12px 14px; border-radius: 14px; border: 1px solid var(--line); text-decoration: none; color: var(--ink); background: var(--bg-soft); transition: transform .15s, border-color .15s; }
.weak-item:hover { transform: translateY(-2px); border-color: var(--grape); }
.weak-item .chip { align-self: flex-start; }
.practice { margin-top: 24px; padding: 16px 18px; border-radius: 16px; background: var(--hero); display: flex; gap: 14px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.practice .muted { font-size: .92rem; }
.sim-new { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; background: var(--hero); border: none; margin-bottom: 18px; }
.sim-new .sim-ico { font-size: 2.2rem; }
.sim-new .info { flex: 1; min-width: 220px; }
.ripasso-hero { text-align: center; }
.ripasso-hero .stats { max-width: 560px; margin: 0 auto 16px; }
.ripasso-build { display: flex; flex-wrap: wrap; gap: 14px; align-items: end; justify-content: center; margin-bottom: 10px; }
.ripasso-build label { display: flex; flex-direction: column; gap: 5px; font-size: .85rem; font-weight: 700; color: var(--muted); text-align: left; }
.ripasso-build select, .ripasso-build input[type=number] {
  font: inherit; font-weight: 700; color: var(--ink); background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 12px; padding: 9px 12px;
}
.ripasso-build input[type=number] { width: 100px; }
.ripasso-build .btn.big { margin: 0; }
.btn.big { font-size: 1.1rem; padding: 14px 28px; }
.nav .badge { display: inline-block; min-width: 20px; padding: 0 6px; margin-left: 4px; border-radius: 99px; background: var(--brand); color: #fff; font-size: .75rem; line-height: 20px; text-align: center; }
.nav a.active .badge { background: #fff; color: var(--brand); }

/* ---------- account ---------- */
#acctBox { display: flex; align-items: center; }
.acct-chip { display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: 99px; font-weight: 700; color: var(--grape); background: color-mix(in srgb, var(--grape) 12%, transparent); text-decoration: none; }
.acct-login { background: var(--grad); color: #fff; }
.account-gate { text-align: center; max-width: 480px; margin: 0 auto; padding: 40px 28px; }
.account-gate .ico { font-size: 2.4rem; margin-bottom: 6px; }
.account-gate h3 { margin: 0 0 8px; }
.account-gate .btn { margin-top: 18px; }

@media (max-width: 680px) {
  #acctBox { width: 100%; justify-content: flex-end; order: 99; }
}
/* ---------- pagina "Il concorso" ---------- */
.conc-hero { padding-bottom: 64px; }
.conc-hero h1 { margin-top: 0; }
.conc-stats { margin-bottom: 0; }
.conc-bar { display: flex; height: 44px; border-radius: 14px; overflow: hidden; margin: 14px 0 10px; box-shadow: inset 0 0 0 1px rgba(0,0,0,.04); }
.conc-bar span { display: grid; place-items: center; color: #fff; font-weight: 900; min-width: 28px; }
.conc-legend { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-bottom: 14px; font-size: .92rem; }
.conc-legend i { display: inline-block; width: 12px; height: 12px; border-radius: 4px; margin-right: 6px; vertical-align: -1px; }
.conc-score { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.conc-score > div { text-align: center; padding: 14px 8px; border-radius: 16px; background: var(--bg-soft); border: 1px solid var(--line); }
.conc-score b { display: block; font-size: 1.8rem; font-weight: 900; }
.conc-score .ok b { color: var(--ok); } .conc-score .ko b { color: var(--bad); }
.conc-score span { color: var(--muted); font-size: .9rem; }
.conc-classi { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 14px; }
.conc-classi .card { margin: 0; }
.conc-classe { display: flex; gap: 12px; align-items: center; }
.conc-classe > span { font-size: 1.8rem; }
.conc-classi ul { margin: 12px 0 0; padding-left: 20px; line-height: 1.7; }
.conc-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.conc-steps .card { margin: 0; text-decoration: none; color: var(--ink); transition: transform .15s; }
.conc-steps .card:hover { transform: translateY(-3px); }
.conc-steps .card > b { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--grad); color: #fff; }
.conc-steps h3 { margin: 10px 0 4px; }
.conc-fonti { margin-top: 22px; font-size: .88rem; }
@media (max-width: 560px) { .conc-score b { font-size: 1.4rem; } }

/* telefono: menu su una sola riga scorrevole, così l'intestazione resta bassa */
@media (max-width: 640px) {
  .nav { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; margin: 0 -16px; padding: 0 16px 4px; width: calc(100% + 32px); }
  .nav::-webkit-scrollbar { display: none; }
  .nav a { white-space: nowrap; flex: 0 0 auto; }
  .chap-nav { flex-direction: column; }
  .chap-nav-btn.next { text-align: left; }
}

/* ---------- punteggi minimi e obiettivo ---------- */
.soglie { border-left: 6px solid var(--brand); }
.soglie-pick { display: grid; grid-template-columns: 1fr 2fr; gap: 12px; margin: 12px 0; }
.soglie-pick label { display: flex; flex-direction: column; gap: 4px; font-weight: 800; font-size: .85rem; color: var(--muted); }
.soglie-pick select { width: 100%; font: inherit; color: var(--ink); padding: 9px 12px; border-radius: 12px; border: 1px solid var(--line); background: var(--card); }
.soglia-big { display: flex; gap: 18px; align-items: center; background: var(--hero); border-radius: 16px; padding: 14px 18px; }
.soglia-big > div { text-align: center; min-width: 96px; }
.soglia-big > div b { display: block; font-size: 2.3rem; font-weight: 900; line-height: 1.1; color: var(--brand); }
.soglia-big > div span { font-size: .8rem; color: var(--muted); }
.soglia-big p { margin: 0; }
.soglie-alt { margin: 8px 0; }
.soglie-alt summary { cursor: pointer; font-weight: 800; color: var(--brand); }
.soglie-fonte { font-size: .82rem; margin-bottom: 0; }
.sim-ob { flex-basis: 100%; margin: 0; font-size: .9rem; }
.esito { border-left: 6px solid var(--mint); }
.esito-ob { display: flex; gap: 12px; align-items: center; padding: 12px 16px; border-radius: 14px; font-size: 1.6rem; }
.esito-ob div { display: flex; flex-direction: column; font-size: 1rem; }
.esito-ob span { color: var(--muted); font-size: .9rem; }
.esito-ob.ok { background: var(--ok-soft); } .esito-ob.ok b { color: var(--ok); }
.esito-ob.ko { background: var(--warn-soft); } .esito-ob.ko b { color: var(--warn); }
.esito-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.esito-list .chip b { color: var(--brand); margin-left: 4px; }
@media (max-width: 560px) { .soglie-pick { grid-template-columns: 1fr; } .soglia-big { flex-direction: column; text-align: center; } }

/* ---------- formulario ---------- */
.form-tabs { margin: 6px 0 16px; gap: 8px; }
.form-tabs .chip { text-decoration: none; font-size: .9rem; padding: 6px 14px; }
.form-tabs .chip.on { background: var(--grad); color: #fff; border-color: transparent; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(330px, 1fr)); gap: 16px; align-items: start; }
.form-sez { margin: 0; border-top: 5px solid var(--c); }
.form-sez h2 { margin: 0 0 10px; font-size: 1.15rem; }
.form-sez dl { margin: 0 0 10px; }
.form-sez dl > div { padding: 8px 0; border-bottom: 1px dashed var(--line); }
.form-sez dl > div:last-child { border-bottom: 0; }
.form-sez dt { font-weight: 800; font-size: .85rem; color: var(--muted); }
.form-sez dd { margin: 2px 0 0; }
.form-sez code { font-family: "Nunito", system-ui, sans-serif; font-weight: 800; font-size: 1.02rem; color: var(--ink); background: none; white-space: normal; }
.form-sez small { display: block; color: var(--muted); font-size: .82rem; margin-top: 2px; }
.only-print { display: none; }
@media print {
  .only-print { display: block; font-size: 16pt; margin: 0 0 8pt; }
  .form-grid { display: block; column-count: 2; column-gap: 14pt; }
  .form-sez { break-inside: avoid; box-shadow: none; border: 1px solid #ccc; border-top: 4px solid var(--c); padding: 8pt 10pt; margin: 0 0 10pt; }
  .form-sez h2 { font-size: 11pt; } .form-sez dt { font-size: 7.5pt; } .form-sez code { font-size: 9pt; } .form-sez small { font-size: 7pt; }
  .form-sez dl > div { padding: 3pt 0; }
}
.form-sez dd code { display: inline-block; margin-right: 4px; }
.form-sez .f-sep { display: inline-block; width: 1px; height: 1em; background: var(--line); margin: 0 10px; vertical-align: -2px; }