/* Landing di settore — AI per Aziende. Token dal sito madre (DESIGN.md):
   ciano «Comando» unica voce delle azioni, neutri hue 220, Poppins + PT Sans.
   L'accento del mestiere (--ah/--as, scritti nell'HTML) vive solo in icone, disegno e segni piccoli. */

@font-face { font-family: "Poppins"; font-style: normal; font-weight: 600; font-display: swap; src: url("fonts/poppins-600.woff2") format("woff2"); }
@font-face { font-family: "Poppins"; font-style: normal; font-weight: 700; font-display: swap; src: url("fonts/poppins-700.woff2") format("woff2"); }
@font-face { font-family: "PT Sans"; font-style: normal; font-weight: 400; font-display: swap; src: url("fonts/pt-sans-400.woff2") format("woff2"); }
@font-face { font-family: "PT Sans"; font-style: normal; font-weight: 700; font-display: swap; src: url("fonts/pt-sans-700.woff2") format("woff2"); }

:root {
  color-scheme: light dark;
  --bg: hsl(0 0% 100%);
  --surface-2: hsl(220 14% 97%);
  --surface-3: hsl(220 13% 93%);
  --ink: hsl(224 20% 10%);
  --ink-2: hsl(222 14% 28%);
  --muted: hsl(215 15% 40%);
  --border: hsl(220 13% 90%);
  --border-strong: hsl(220 13% 80%);
  --primary: hsl(199 98% 34%);
  --primary-hover: hsl(199 98% 28%);
  --on-primary: hsl(0 0% 100%);
  --primary-soft: hsl(197 70% 94%);
  --accent: hsl(var(--ah) var(--as) 36%);
  --accent-line: hsl(var(--ah) var(--as) 45% / 0.16);
  --accent-soft: hsl(var(--ah) calc(var(--as) * 0.6) 95%);
  --band-bg: hsl(224 24% 11%);
  --band-ink: hsl(210 20% 94%);
  --band-muted: hsl(215 16% 72%);
  --band-line: hsl(224 14% 24%);
  --danger: hsl(0 63% 42%);
  --danger-soft: hsl(0 80% 97%);
  --success: hsl(142 72% 27%);
  --success-soft: hsl(142 50% 95%);
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-lift: 0 1px 2px hsl(224 30% 10% / 0.05), 0 6px 14px -8px hsl(224 30% 10% / 0.14);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --wrap: 1200px;
  --gutter: clamp(16px, 4vw, 40px);
  --f-head: "Poppins", ui-sans-serif, sans-serif;
  --f-body: "PT Sans", ui-sans-serif, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: hsl(224 20% 8%);
    --surface-2: hsl(224 18% 11%);
    --surface-3: hsl(224 16% 15%);
    --ink: hsl(210 20% 93%);
    --ink-2: hsl(214 16% 80%);
    --muted: hsl(215 15% 68%);
    --border: hsl(224 14% 19%);
    --border-strong: hsl(224 12% 30%);
    --primary: hsl(193 82% 60%);
    --primary-hover: hsl(193 82% 68%);
    --on-primary: hsl(202 40% 12%);
    --primary-soft: hsl(199 50% 16%);
    --accent: hsl(var(--ah) var(--as) 64%);
    --accent-line: hsl(var(--ah) var(--as) 60% / 0.14);
    --accent-soft: hsl(var(--ah) 30% 14%);
    --band-bg: hsl(224 20% 12%);
    --band-line: hsl(224 14% 22%);
    --danger: hsl(0 80% 70%);
    --danger-soft: hsl(0 40% 14%);
    --success: hsl(142 55% 60%);
    --success-soft: hsl(142 30% 13%);
    --shadow-lift: 0 1px 2px hsl(0 0% 0% / 0.3), 0 6px 14px -8px hsl(0 0% 0% / 0.5);
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--f-body); font-size: 1.125rem; line-height: 1.6;
  text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased;
}
::selection { background: hsl(199 98% 34% / 0.22); color: var(--ink); }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 4px; }
a { color: var(--primary); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { color: var(--primary-hover); }
img, svg { display: block; }
html { scrollbar-color: var(--border-strong) var(--bg); }
h1, h2, h3 { font-family: var(--f-head); color: var(--ink); text-wrap: balance; margin: 0; }
h2 { font-size: clamp(1.85rem, 1.2rem + 2.2vw, 2.75rem); line-height: 1.12; letter-spacing: -0.025em; font-weight: 700; }
h3 { font-size: 1.2rem; line-height: 1.3; letter-spacing: -0.01em; font-weight: 600; }
p { margin: 0; text-wrap: pretty; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 50; background: var(--bg); padding: 8px 14px; border-radius: var(--radius-sm); }
.skip:focus { left: 8px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Bottoni */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 22px; border-radius: var(--radius-sm); border: 1px solid transparent;
  font-family: var(--f-head); font-weight: 600; font-size: 1rem; letter-spacing: -0.005em;
  text-decoration: none; cursor: pointer; transition: background-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}
.btn-primary { background: var(--primary); color: var(--on-primary); box-shadow: 0 1px 2px hsl(199 98% 20% / 0.25); }
.btn-primary:hover { background: var(--primary-hover); color: var(--on-primary); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary svg { transition: transform .25s var(--ease); }
.btn-primary:hover svg { transform: translateX(3px); }
.btn-ghost { color: var(--ink); border-color: var(--border-strong); background: transparent; }
.btn-ghost:hover { background: var(--surface-2); color: var(--ink); }
.btn-sm { min-height: 44px; padding: 0 16px; font-size: 0.95rem; }
.btn[disabled] { opacity: .6; cursor: progress; }

/* Testata */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 92%, transparent); border-bottom: 1px solid var(--border); backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px); }
.top .wrap { display: flex; align-items: center; gap: 24px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-family: var(--f-head); font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em; }
.brand svg { color: var(--primary); }
.brand-for { font-family: var(--f-body); font-weight: 400; color: var(--muted); font-size: 0.95rem; padding-left: 12px; margin-left: 2px; border-left: 1px solid var(--border-strong); display: inline-flex; align-items: center; gap: 6px; }
.brand-for svg { color: var(--accent); }
.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a:not(.btn) { color: var(--ink-2); text-decoration: none; font-size: 0.98rem; padding: 10px 12px; border-radius: var(--radius-sm); }
.nav a:not(.btn):hover { color: var(--ink); background: var(--surface-2); }

/* Hero */
.hero { position: relative; padding: clamp(48px, 7vw, 104px) 0 clamp(56px, 7vw, 112px); overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg) 55%, color-mix(in srgb, var(--primary) 5%, var(--bg)) 100%);
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: clamp(40px, 6vw, 88px); align-items: center; }
.hero h1 { font-size: clamp(2.3rem, 1.2rem + 3.3vw, 3.9rem); line-height: 1.05; letter-spacing: -0.032em; font-weight: 700; max-width: 18ch; }
.hero h1 .for { color: var(--primary); }
.hero h1 .nobr { white-space: nowrap; } /* niente «short-/term» spezzato a fine riga */
.hero-intro { margin-top: 26px; font-size: clamp(1.15rem, 1rem + 0.45vw, 1.35rem); line-height: 1.55; color: var(--ink-2); max-width: 58ch; }
.hero-cta { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-cta .btn-primary { min-height: 56px; padding: 0 28px; font-size: 1.05rem; }
.facts { margin: 28px 0 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 10px 22px; color: var(--muted); font-size: 0.98rem; }
.facts li { display: inline-flex; align-items: center; gap: 8px; }
.facts svg { color: var(--success); flex: none; }

/* Pannello «giornata»: carta da disegno tecnico del mestiere */
.board {
  position: relative; border: 1px solid var(--border); border-radius: 14px; background-color: var(--bg);
  background-image: linear-gradient(var(--accent-line) 1px, transparent 1px), linear-gradient(90deg, var(--accent-line) 1px, transparent 1px);
  background-size: 28px 28px; background-position: -1px -1px;
  box-shadow: var(--shadow-lift); padding: 32px; isolation: isolate; overflow: hidden;
}
.board-icon { position: absolute; right: -70px; bottom: -80px; color: var(--accent); opacity: 0.12; z-index: -1; }
.board-icon path { stroke-dasharray: 120; stroke-dashoffset: 0; }
.board-head { display: flex; align-items: center; gap: 14px; }
.board-badge { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); flex: none; }
.board-label { font-size: 0.95rem; color: var(--muted); line-height: 1.3; }
.board-label strong { display: block; color: var(--ink); font-family: var(--f-head); font-weight: 600; font-size: 1.05rem; }
.board-quote { margin: 24px 0 0; padding: 22px 22px 22px 24px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); font-size: 1.12rem; line-height: 1.55; color: var(--ink); position: relative; }
.board-quote::before { content: ""; position: absolute; left: -1px; top: 18px; bottom: 18px; width: 1px; background: var(--accent); }
.board-draft { margin-top: 14px; padding: 18px 20px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); }
.board-draft-k { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--muted); }
.board-draft-k .ai { display: inline-flex; align-items: center; height: 22px; padding: 0 8px; border-radius: 999px; background: hsl(263 70% 58% / 0.12); color: hsl(263 60% 46%); font-family: var(--f-head); font-weight: 600; font-size: 0.78rem; }
.board-draft p { margin-top: 8px; color: var(--ink); font-size: 1rem; line-height: 1.5; }
.board-draft-actions { margin-top: 14px; display: flex; gap: 8px; }
.board-draft-actions span { display: inline-flex; align-items: center; gap: 6px; height: 36px; padding: 0 14px; border-radius: var(--radius-sm); font-family: var(--f-head); font-weight: 600; font-size: 0.88rem; border: 1px solid var(--border-strong); color: var(--ink-2); }
.board-draft-actions span:first-child { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
@media (prefers-color-scheme: dark) { .board-draft-k .ai { color: hsl(263 80% 78%); background: hsl(263 50% 30% / 0.5); } }
.board-foot { margin-top: 18px; display: flex; align-items: center; gap: 10px; font-size: 0.95rem; color: var(--ink-2); } /* ink-2: resta leggibile sopra disegno e griglia del pannello */
.board-foot .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 4px var(--success-soft); flex: none; }

/* Sezioni */
.sec { padding: clamp(72px, 9vw, 128px) 0; }
.sec-alt { background: var(--surface-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.sec-head { max-width: 760px; }
.sec-head p { margin-top: 18px; color: var(--muted); font-size: 1.15rem; }

/* Problemi: titolo fermo a sinistra, elenco a righe a destra */
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.split > .sec-head { position: sticky; top: 112px; }
.rows { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--border-strong); }
.rows li { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 16px; padding: 28px 0; border-bottom: 1px solid var(--border); }
.rows .mark { width: 28px; height: 28px; margin-top: 2px; border-radius: 50%; border: 1px solid var(--border-strong); display: grid; place-items: center; color: var(--accent); }
.rows h3 { margin-bottom: 8px; }
.rows p { color: var(--ink-2); max-width: 62ch; }

/* Soluzioni: righe alternate testo / esempio di giornata */
.solutions { margin-top: clamp(40px, 5vw, 64px); display: grid; gap: 0; border-top: 1px solid var(--border-strong); }
.sol { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 64px); padding: clamp(28px, 3.4vw, 44px) 0; border-bottom: 1px solid var(--border); align-items: start; }
.sol h3 { font-size: clamp(1.25rem, 1.1rem + 0.5vw, 1.5rem); margin-bottom: 10px; }
.sol-text p { color: var(--ink-2); max-width: 56ch; }
.sol-ex { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px; font-size: 1.04rem; line-height: 1.55; color: var(--ink-2); }
.sol-ex-k { display: flex; align-items: center; gap: 8px; font-family: var(--f-head); font-weight: 600; font-size: 0.9rem; color: var(--accent); margin-bottom: 8px; }

/* Come funziona: tre tappe su una linea */
.steps { list-style: none; margin: clamp(40px, 5vw, 64px) 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(24px, 3vw, 48px); counter-reset: step; position: relative; }
.steps::before { content: ""; position: absolute; left: 22px; right: 22px; top: 22px; height: 1px; background: var(--border-strong); }
.steps li { position: relative; counter-increment: step; }
.steps .n { position: relative; width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; background: var(--bg); border: 1px solid var(--primary); color: var(--primary); font-family: var(--f-head); font-weight: 600; font-variant-numeric: tabular-nums; }
.steps li:first-child .n { background: var(--primary); color: var(--on-primary); }
.steps h3 { margin: 22px 0 8px; }
.steps p { color: var(--ink-2); max-width: 40ch; }

/* Perché: fascia scura */
.band { background: var(--band-bg); color: var(--band-ink); }
.band h2, .band h3 { color: var(--band-ink); }
.band .sec-head p { color: var(--band-muted); }
.whys { margin-top: clamp(40px, 5vw, 64px); display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--band-line); }
.whys > div { padding: 28px 28px 0 0; }
.whys > div + div { padding-left: 28px; border-left: 1px solid var(--band-line); }
.whys h3 { margin-bottom: 10px; }
.whys p { color: var(--band-muted); }

/* FAQ */
.faq { border-top: 1px solid var(--border-strong); }
.faq details { border-bottom: 1px solid var(--border); }
.faq summary { list-style: none; cursor: pointer; display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; padding: 22px 0; font-family: var(--f-head); font-weight: 600; font-size: 1.1rem; line-height: 1.4; color: var(--ink); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--primary); }
.faq .pm { flex: none; width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--border-strong); display: grid; place-items: center; color: var(--muted); transition: transform .3s var(--ease), border-color .2s; margin-top: -1px; }
.faq details[open] .pm { transform: rotate(45deg); border-color: var(--primary); color: var(--primary); }
.faq .a { padding: 0 48px 24px 0; color: var(--ink-2); max-width: 70ch; }
.sources { margin-top: 32px; font-size: 0.95rem; color: var(--muted); }
.sources ol { margin: 8px 0 0; padding-left: 20px; }
.sources a { word-break: break-word; }

/* Contatto */
.contact { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 88px); align-items: start; }
.contact-side p { margin-top: 18px; color: var(--ink-2); font-size: 1.15rem; max-width: 46ch; }
.direct { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); display: grid; gap: 14px; font-size: 1rem; color: var(--muted); }
.direct a { font-family: var(--f-head); font-weight: 600; font-size: 1.05rem; }
.direct div { display: flex; gap: 12px; align-items: flex-start; }
.direct svg { color: var(--muted); margin-top: 3px; flex: none; }
.card { background: var(--bg); border: 1px solid var(--border); border-radius: 14px; padding: clamp(22px, 3vw, 40px); box-shadow: var(--shadow-lift); }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 18px; }
.field { display: grid; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-family: var(--f-head); font-weight: 600; font-size: 0.92rem; color: var(--ink); }
.field .opt { font-family: var(--f-body); font-weight: 400; color: var(--muted); }
.field input, .field textarea {
  width: 100%; font: inherit; font-size: 1.05rem; color: var(--ink); background: var(--bg);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm); padding: 12px 14px; min-height: 50px;
  transition: border-color .15s, box-shadow .15s; caret-color: var(--primary);
}
.field textarea { min-height: 132px; resize: vertical; line-height: 1.5; }
.field input::placeholder, .field textarea::placeholder { color: hsl(215 12% 52%); }
.field input:hover, .field textarea:hover { border-color: var(--muted); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px hsl(199 98% 34% / 0.18); }
.field input:user-invalid, .field textarea:user-invalid { border-color: var(--danger); }
.consent { grid-column: 1 / -1; display: flex; gap: 12px; align-items: flex-start; font-size: 0.98rem; color: var(--ink-2); line-height: 1.45; }
.consent input { width: 22px; height: 22px; margin: 1px 0 0; accent-color: var(--primary); flex: none; }
.form-foot { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-top: 4px; }
.form-foot .btn { min-height: 54px; padding: 0 28px; }
.form-foot small { color: var(--muted); font-size: 0.92rem; }
.hp { position: absolute !important; left: -10000px !important; width: 1px; height: 1px; overflow: hidden; }
.ts { grid-column: 1 / -1; }
.spin { width: 18px; height: 18px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; animation: spin .8s linear infinite; display: none; }
.is-sending .spin { display: inline-block; }
.is-sending .arrow { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

.state { display: none; border-radius: var(--radius); padding: 20px 22px; margin-bottom: 22px; }
.state h3 { font-size: 1.1rem; margin-bottom: 6px; }
.state p { color: var(--ink-2); }
.state-ok { background: var(--success-soft); border: 1px solid color-mix(in srgb, var(--success) 35%, transparent); }
.state-ok h3 { color: var(--success); }
.state-err { background: var(--danger-soft); border: 1px solid color-mix(in srgb, var(--danger) 35%, transparent); }
.state-err h3 { color: var(--danger); }
.card.is-ok .state-ok, .card.is-err .state-err { display: block; }
.card.is-ok .form { display: none; }
/* senza JS: il server rimanda a #inviato o #errore-invio */
#inviato:target, #errore-invio:target { display: block; }

/* Piede */
.foot { border-top: 1px solid var(--border); background: var(--surface-2); padding: 40px 0 48px; font-size: 0.95rem; color: var(--muted); }
.foot-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 4px 18px; }
.foot nav a { color: var(--muted); text-decoration: none; min-height: 44px; display: inline-flex; align-items: center; }
.foot nav a:hover { color: var(--primary); }
.foot-legal { margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--border); font-size: 0.88rem; line-height: 1.6; }

/* Movimento: un solo momento, il disegno del mestiere che si traccia */
@media (prefers-reduced-motion: no-preference) {
  .board-icon path { animation: draw 2.4s var(--ease) both .2s; }
  @keyframes draw { from { stroke-dashoffset: 120; } to { stroke-dashoffset: 0; } }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }

/* Telefono prima: si stringe sotto i 960 */
@media (max-width: 960px) {
  .hero-grid, .split, .contact, .sol { grid-template-columns: minmax(0, 1fr); }
  .split > .sec-head { position: static; }
  .steps { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .steps::before { left: 22px; right: auto; top: 22px; bottom: 22px; width: 1px; height: auto; }
  .steps li { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 0 18px; padding-bottom: 32px; }
  .steps li:last-child { padding-bottom: 0; }
  .steps h3 { margin: 9px 0 6px; }
  .steps p { grid-column: 2; }
  .steps .n { grid-row: 1 / span 2; }
  .whys { grid-template-columns: minmax(0, 1fr); }
  .whys > div, .whys > div + div { padding: 24px 0; border-left: 0; border-bottom: 1px solid var(--band-line); }
  .nav a:not(.btn) { display: none; }
  .board-icon { width: 220px; height: 220px; right: -20px; bottom: -28px; }
}
@media (max-width: 640px) {
  body { font-size: 1.0625rem; }
  .brand-for { display: none; }
  .top .wrap { min-height: 60px; gap: 12px; }
  .hero-cta .btn-primary { width: 100%; }
  .form { grid-template-columns: minmax(0, 1fr); }
  .board { padding: 20px; }
  .faq .a { padding-right: 0; }
  .rows li { grid-template-columns: 32px minmax(0, 1fr); gap: 12px; }
}