/* Cornetta · sito. Nessuno stile inline: la Content-Security-Policy ammette solo questo file. */
:root {
  --bg: #ffffff;
  --bg-soft: #f5f5f7;
  --bg-deep: #ececf0;
  --ink: #1d1d1f;
  --ink-2: #5f5f66;
  --line: #e3e3e8;
  --accent: #d42a1f;
  --accent-hover: #bb2219;
  --accent-soft: #fdecea;
  --blue: #2f6fe4;
  --green: #2f9e4f;
  --focus: #2f6fe4;
  --radius: 18px;
  --wrap: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 84px; background: var(--bg); }
body { margin: 0; color: var(--ink); background: var(--bg); font: 400 1.125rem/1.6 var(--font); -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--ink); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { color: var(--accent); }
::selection { background: #ffd8d4; color: var(--ink); }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 8px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }

.wrap { width: min(100% - 40px, var(--wrap)); margin-inline: auto; }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 10; }
.skip:focus, .skip:hover { left: 12px; color: #fff; }

/* Navigazione */
.nav { position: sticky; top: 0; z-index: 5; background: rgb(255 255 255 / 86%); backdrop-filter: saturate(180%) blur(16px); -webkit-backdrop-filter: saturate(180%) blur(16px); border-bottom: 1px solid transparent; transition: border-color 200ms; }
.nav.scrolled { border-bottom-color: var(--line); }
.nav .wrap { display: flex; align-items: center; gap: 28px; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font: 700 1.125rem/1 var(--font-display); text-decoration: none; letter-spacing: -0.01em; }
.logo img { width: 30px; height: 30px; }
.nav ul { display: flex; gap: 24px; list-style: none; margin: 0 0 0 auto; padding: 0; font-size: 0.9375rem; }
.nav ul a { text-decoration: none; color: var(--ink-2); }
.nav ul a:hover { color: var(--ink); }
.nav .btn { padding: 9px 16px; font-size: 0.9375rem; }

/* Pulsanti */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 15px 26px; border-radius: 999px; font: 600 1.0625rem/1 var(--font); text-decoration: none; border: 0; cursor: pointer; transition: background-color 150ms, transform 150ms cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 150ms; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 1px 2px rgb(0 0 0 / 12%), 0 8px 20px -8px rgb(212 42 31 / 55%); }
.btn-primary:hover { background: var(--accent-hover); color: #fff; transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary { background: var(--bg-soft); color: var(--ink); }
.btn-secondary:hover { background: var(--bg-deep); color: var(--ink); }
.btn svg { width: 20px; height: 20px; flex: none; }

/* Hero */
.hero { padding: 72px 0 40px; text-align: center; }
.hero h1 { font: 800 clamp(2.75rem, 7vw, 5rem)/1.02 var(--font-display); letter-spacing: -0.035em; margin: 0 auto 22px; max-width: 14ch; text-wrap: balance; }
.hero .lede { font-size: clamp(1.1875rem, 2.2vw, 1.4375rem); line-height: 1.5; color: var(--ink-2); margin: 0 auto 34px; max-width: 34ch; text-wrap: balance; }
.hero .lede strong { color: var(--ink); font-weight: 600; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.meta { margin: 16px 0 0; font-size: 0.9375rem; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.os-note { margin: 14px auto 0; max-width: 46ch; font-size: 0.9375rem; color: var(--ink-2); }
.os-note[hidden] { display: none; }

/* La scena: una porzione di desktop con Cornetta al lavoro. */
.scene { margin: 56px auto 0; width: min(100% - 40px, 1040px); aspect-ratio: 2 / 1; position: relative; border-radius: 22px; overflow: hidden; background: linear-gradient(160deg, #e9edf5 0%, #dfe5ef 45%, #e8e2ea 100%); box-shadow: 0 1px 0 rgb(255 255 255 / 70%) inset, 0 30px 60px -30px rgb(29 29 31 / 35%); }
.menubar { position: absolute; inset: 0 0 auto 0; height: 34px; background: rgb(255 255 255 / 62%); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); display: flex; align-items: center; justify-content: flex-end; gap: 18px; padding: 0 18px; font: 500 0.875rem/1 var(--font); color: #1d1d1f; }
.menubar .rec { display: inline-flex; align-items: center; gap: 7px; font-variant-numeric: tabular-nums; font-weight: 600; }
.menubar .rec i { width: 11px; height: 11px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 2px rgb(212 42 31 / 25%); }
.menubar .muted { color: #3a3a3c; }
.scene .shot { position: absolute; filter: drop-shadow(0 18px 30px rgb(29 29 31 / 18%)); }
.scene .shot-overlay { top: 11%; right: 3%; width: 54%; }
.scene .shot-call { left: 5%; bottom: 8%; width: 50%; }
.scene .caption { position: absolute; left: 5%; top: 20%; max-width: 36%; text-align: left; font: 600 clamp(0.875rem, 1.6vw, 1.125rem)/1.35 var(--font); color: #3a3a3c; }

.works { padding: 40px 0 8px; text-align: center; }
.works p { margin: 0 0 14px; color: var(--ink-2); font-size: 0.9375rem; }
.works ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 28px; font: 600 1.0625rem/1.4 var(--font); color: #3a3a3c; }

/* Funzioni: righe alternate, testo e immagine */
.section { padding: 112px 0; }
.section-soft { background: var(--bg-soft); }
.section h2 { font: 800 clamp(2.125rem, 4.4vw, 3.25rem)/1.06 var(--font-display); letter-spacing: -0.03em; margin: 0 0 18px; text-wrap: balance; }
.section .intro { color: var(--ink-2); font-size: 1.25rem; max-width: 52ch; margin: 0; }
.section-head { margin-bottom: 64px; }
.section-head.center { text-align: center; }
.section-head.center .intro { margin-inline: auto; }

.feature { display: grid; grid-template-columns: 1fr 1.1fr; gap: 72px; align-items: center; }
.feature + .feature { margin-top: 112px; }
.feature.flip .feature-text { order: 2; }
.feature h3 { font: 700 clamp(1.625rem, 3vw, 2.125rem)/1.15 var(--font-display); letter-spacing: -0.02em; margin: 0 0 14px; }
.feature p { color: var(--ink-2); margin: 0 0 14px; max-width: 46ch; }
.feature ul { margin: 18px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.feature li { display: flex; gap: 12px; align-items: baseline; }
.feature li::before { content: ""; flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); transform: translateY(-2px); }
.feature-media { background: var(--bg-soft); border-radius: var(--radius); padding: clamp(20px, 3.5vw, 40px); display: grid; place-items: center; }
.section-soft .feature-media { background: var(--bg); }
.feature-media img { width: 100%; max-width: 520px; }

/* Elenco dei dettagli: icona, titolo, testo. Niente schede. */
.details { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px 56px; margin: 0; padding: 0; list-style: none; }
.details li { display: grid; gap: 8px; }
.details svg { width: 28px; height: 28px; color: var(--accent); margin-bottom: 6px; }
.details h3 { font: 650 1.1875rem/1.3 var(--font); margin: 0; }
.details p { margin: 0; color: var(--ink-2); font-size: 1.0625rem; }

/* Installazione */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin: 0; padding: 0; list-style: none; }
.steps li { counter-increment: step; border-top: 2px solid var(--ink); padding-top: 20px; }
.steps li::before { content: counter(step); display: block; font: 800 2.5rem/1 var(--font-display); letter-spacing: -0.03em; margin-bottom: 14px; }
.steps h3 { font: 650 1.25rem/1.3 var(--font); margin: 0 0 8px; }
.steps p { margin: 0 0 10px; color: var(--ink-2); }
.key { font: 600 0.9em/1 var(--font); white-space: nowrap; padding: 3px 8px; border: 1px solid #c7c7cc; border-radius: 6px; background: var(--bg); color: var(--ink); box-shadow: 0 1px 0 #c7c7cc; }
.callout { margin-top: 48px; padding: 22px 26px; border-radius: var(--radius); background: #fff7e0; color: #5c4400; display: flex; gap: 16px; align-items: flex-start; }
.callout svg { width: 24px; height: 24px; flex: none; margin-top: 2px; color: #b07a00; }
.callout p { margin: 0; }

/* FAQ */
.faq { max-width: 820px; margin: 0 auto; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 24px; padding: 24px 0; font: 650 1.1875rem/1.4 var(--font); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; flex: none; width: 12px; height: 12px; margin-top: 7px; border-right: 2px solid var(--ink-2); border-bottom: 2px solid var(--ink-2); transform: rotate(45deg); transition: transform 200ms; }
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: 12px; }
.faq .answer { padding: 0 0 26px; color: var(--ink-2); max-width: 68ch; }
.faq .answer p { margin: 0 0 10px; }

/* Chiusura */
.closing { padding: 120px 0; text-align: center; }
.closing img { width: 96px; height: 96px; margin: 0 auto 28px; }
.closing h2 { font: 800 clamp(2.25rem, 5vw, 3.5rem)/1.05 var(--font-display); letter-spacing: -0.035em; margin: 0 0 16px; }
.closing p { color: var(--ink-2); font-size: 1.25rem; margin: 0 0 32px; }

footer { border-top: 1px solid var(--line); padding: 36px 0 48px; font-size: 0.9375rem; color: var(--ink-2); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; }
footer ul { display: flex; flex-wrap: wrap; gap: 8px 22px; list-style: none; margin: 0; padding: 0; }
footer a { color: var(--ink-2); }
footer small { display: block; font-size: 0.875rem; margin-top: 6px; }

@media (max-width: 900px) {
  .nav ul { display: none; }
  .nav .btn { margin-left: auto; }
  .hero { padding-top: 48px; }
  .scene { aspect-ratio: 1 / 1; }
  .scene .shot-overlay { top: 15%; right: 3%; width: 94%; }
  .scene .shot-call { left: 5%; bottom: 7%; width: 88%; }
  .scene .caption { display: none; }
  .menubar .muted { display: none; }
  .section { padding: 80px 0; }
  .feature, .feature.flip { grid-template-columns: 1fr; gap: 32px; }
  .feature.flip .feature-text { order: 0; }
  .feature + .feature { margin-top: 80px; }
  .details { grid-template-columns: 1fr; gap: 32px; }
  .steps { grid-template-columns: 1fr; gap: 32px; }
}
@media (min-width: 901px) and (max-width: 1100px) { .details { grid-template-columns: repeat(2, 1fr); } }