/* ==========================================================================
   Studio Scarantino – Safety First
   Foglio di stile principale
   Palette dal manuale del marchio (#1388a5) e dalla carta intestata.
   ========================================================================== */

/* Tektur (SIL Open Font License) – sottoinsieme: lettere senza accenti, cifre, spazio.
   Per i caratteri non inclusi il browser usa automaticamente il font di sistema. */
@font-face {
  font-family: "Tektur";
  src: url("../fonts/tektur-400.woff") format("woff");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0020, U+0030-0039, U+0041-005A, U+0061-007A;
}
@font-face {
  font-family: "Tektur";
  src: url("../fonts/tektur-800.woff") format("woff");
  font-weight: 800;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0020, U+0030-0039, U+0041-005A, U+0061-007A;
}

:root {
  --blu: #1388a5;
  --blu-scuro: #0e6c84;
  --blu-notte: #0b4a5b;
  --azzurro: #8ac4d2;
  --azzurro-tenue: #eef6f8;
  --inchiostro: #14323b;
  --testo: #2a3a40;
  --testo-tenue: #5b6c72;
  --linea: #d6e5ea;
  --bianco: #ffffff;

  --font-brand: "Tektur", "Segoe UI", system-ui, sans-serif;
  --font-testo: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Liberation Sans", Arial, sans-serif;

  --wrap: 1120px;
  --gutter: clamp(16px, 4vw, 32px);
  --raggio: 4px;
  --taglio: clamp(28px, 5vw, 64px);   /* altezza del taglio diagonale, ripreso dalla carta intestata */

  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bianco);
  color: var(--testo);
  font-family: var(--font-testo);
  font-size: 1.0625rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--blu-scuro); text-underline-offset: 3px; }
a:hover { color: var(--blu-notte); }

:focus-visible { outline: 3px solid var(--azzurro); outline-offset: 2px; }

h1, h2, h3 { color: var(--inchiostro); line-height: 1.15; margin: 0 0 .5em; }
h3 { font-size: 1.125rem; font-weight: 700; }
p { margin: 0 0 1em; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 16px; top: -48px; z-index: 100;
  background: var(--blu-notte); color: var(--bianco); padding: 8px 14px; border-radius: var(--raggio);
}
.skip-link:focus { top: 12px; color: var(--bianco); }

/* --- Tipografia di marca --------------------------------------------- */
.display, .display-2 {
  font-family: var(--font-brand);
  font-weight: 800;
  letter-spacing: .005em;
}
.display   { font-size: clamp(2rem, 4.6vw, 3.25rem); max-width: 20em; }
.display-2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }

.eyebrow {
  font-family: var(--font-brand);
  font-weight: 400;
  color: var(--blu);
  font-size: 1rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: .6em;
}

/* --- Pulsanti ---------------------------------------------------------- */
.btn {
  display: inline-block;
  font-family: var(--font-testo);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.2;
  text-decoration: none;
  padding: 14px 24px;
  border-radius: var(--raggio);
  border: 2px solid var(--blu);
  background: var(--blu);
  color: var(--bianco);
  transition: background-color .15s, color .15s, border-color .15s;
}
.btn:hover { background: var(--blu-scuro); border-color: var(--blu-scuro); color: var(--bianco); }
.btn-small { padding: 9px 16px; font-size: .9375rem; }
.btn-light { background: var(--bianco); border-color: var(--bianco); color: var(--blu-notte); }
.btn-light:hover { background: var(--azzurro-tenue); border-color: var(--azzurro-tenue); color: var(--blu-notte); }
.btn-ghost { background: transparent; border-color: rgba(255,255,255,.75); color: var(--bianco); }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: var(--bianco); color: var(--bianco); }

/* --- Header ------------------------------------------------------------ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.97);
  border-bottom: 1px solid var(--linea);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 76px; }
.brand img { width: clamp(190px, 26vw, 260px); }

.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav ul { display: flex; gap: 24px; list-style: none; margin: 0; padding: 0; }
.site-nav ul a {
  color: var(--inchiostro); text-decoration: none; font-weight: 600; font-size: .9875rem;
  padding: 6px 0; border-bottom: 2px solid transparent;
}
.site-nav ul a:hover { color: var(--blu); border-bottom-color: var(--blu); }

.nav-toggle {
  display: none; width: 44px; height: 44px; border: 1px solid var(--linea); border-radius: var(--raggio);
  background: var(--bianco); cursor: pointer; position: relative;
}
.nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after {
  position: absolute; left: 11px; width: 20px; height: 2px; background: var(--inchiostro); content: "";
  transition: transform .2s, opacity .2s;
}
.nav-toggle-bar { top: 21px; }
.nav-toggle-bar::before { left: 0; top: -6px; }
.nav-toggle-bar::after  { left: 0; top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after  { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bianco); border-bottom: 1px solid var(--linea);
    padding: 8px var(--gutter) 20px;
  }
  .site-nav.is-open { display: flex; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav ul a { display: block; padding: 14px 0; border-bottom: 1px solid var(--linea); }
  .site-nav ul a:hover { border-bottom-color: var(--linea); }
  .site-nav .btn { margin-top: 16px; text-align: center; }
}

/* --- Hero (taglio diagonale della carta intestata) ------------------- */
.hero {
  position: relative; overflow: hidden;
  background: var(--blu);
  color: var(--bianco);
  padding: calc(var(--taglio) + clamp(40px, 7vw, 88px)) 0 clamp(64px, 9vw, 112px);
  clip-path: polygon(0 var(--taglio), 100% 0, 100% 100%, 0 100%);
}
.hero-panel {
  position: absolute; inset: 0;
  background: var(--azzurro);
  opacity: .32;
  clip-path: polygon(58% 0, 100% 0, 100% 100%, 76% 100%);
}
.hero-inner { position: relative; max-width: var(--wrap); }
.hero h1 { color: var(--bianco); margin-bottom: .4em; }
.kicker {
  font-size: .9375rem; font-weight: 700; letter-spacing: .02em;
  color: var(--azzurro); margin-bottom: 1em;
}
.lead { font-size: clamp(1.0625rem, 1.6vw, 1.25rem); max-width: 40em; color: rgba(255,255,255,.92); margin-bottom: 2em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* --- Sezioni ----------------------------------------------------------- */
.section { padding: clamp(64px, 9vw, 112px) 0; scroll-margin-top: 76px; }
.section + .section { border-top: 1px solid var(--linea); }

/* Audit */
.audit-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: start; }
.audit-text .btn { margin: .5em 0 1.4em; }
.note { font-size: .875rem; color: var(--testo-tenue); border-left: 3px solid var(--azzurro); padding-left: 12px; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.steps li {
  display: grid; grid-template-columns: 64px 1fr; gap: 16px; align-items: start;
  background: var(--azzurro-tenue); border-radius: var(--raggio); padding: 22px 22px 18px;
  border-left: 4px solid var(--blu);
}
.steps h3 { margin-bottom: .3em; }
.steps p { margin: 0; color: var(--testo-tenue); font-size: .9875rem; }
.step-num { font-family: var(--font-brand); font-weight: 800; font-size: 2rem; line-height: 1; color: var(--blu); }

/* Servizi */
.services { background: var(--azzurro-tenue); }
.services .display-2 { margin-bottom: 1.2em; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--bianco); border: 1px solid var(--linea); border-radius: var(--raggio);
  padding: 28px 26px; position: relative;
}
.card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 56px; height: 4px; background: var(--blu);
}
.card h3 { font-size: 1.3rem; }
.card p { margin: 0; color: var(--testo-tenue); font-size: .9875rem; }
.card-tag {
  display: inline-block; font-size: .75rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--blu-scuro); margin-bottom: 14px;
}

/* Studio */
.studio-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: clamp(32px, 6vw, 80px); }
.refs { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--linea); }
.refs li { display: grid; grid-template-columns: 200px 1fr; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--linea); }
.refs strong { color: var(--inchiostro); }
.refs span { color: var(--testo-tenue); }

/* Valore della prevenzione */
.section-intro { max-width: 44em; color: var(--testo-tenue); font-size: 1.0625rem; margin-bottom: 2em; }
.value-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 48px; border-top: 1px solid var(--linea); }
.value-item { padding: 26px 0 22px; border-bottom: 1px solid var(--linea); }
.value-item h3 { color: var(--blu-scuro); }
.value-item p { margin: 0; color: var(--testo-tenue); font-size: .9875rem; }

/* Settori */
.refs-title { font-size: .8125rem; letter-spacing: .1em; text-transform: uppercase; color: var(--blu-scuro); margin: 1.8em 0 .8em; }
.sectors { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.sectors li {
  font-family: var(--font-brand); font-weight: 800; font-size: 1.05rem; color: var(--inchiostro);
  background: var(--azzurro-tenue); border-top: 3px solid var(--blu); padding: 14px 12px; text-align: center;
}

/* Contatti */
.contacts { background: var(--azzurro-tenue); }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.contact-item { background: var(--bianco); border-radius: var(--raggio); padding: 24px 26px; border: 1px solid var(--linea); }
.contact-item h3 { font-size: .8125rem; letter-spacing: .1em; text-transform: uppercase; color: var(--blu-scuro); }
.contact-item p { margin: 0; font-size: 1.125rem; color: var(--inchiostro); word-break: break-word; }
.contact-item a { color: var(--inchiostro); font-weight: 600; }

/* --- Pagine di testo (privacy, cookie) ------------------------------- */
.page-head { background: var(--blu); color: var(--bianco); padding: clamp(48px, 7vw, 80px) 0 clamp(40px, 6vw, 64px); }
.page-head h1 { color: var(--bianco); }
.page-head p { color: rgba(255,255,255,.88); margin: 0; }
.prose { max-width: 760px; padding-top: clamp(40px, 6vw, 64px); padding-bottom: clamp(56px, 8vw, 96px); }
.prose h2 { font-size: 1.35rem; margin-top: 2em; }
.prose ul { padding-left: 1.2em; }
.prose li { margin-bottom: .4em; }

/* --- Footer ------------------------------------------------------------ */
.site-footer { position: relative; background: var(--blu-notte); color: rgba(255,255,255,.85); font-size: .9375rem; }
.footer-cut {
  position: absolute; left: 0; right: 0; top: calc(-1 * var(--taglio) + 1px); height: var(--taglio);
  background: var(--blu-notte); clip-path: polygon(0 100%, 100% 0, 100% 100%);
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 32px;
  padding-top: clamp(48px, 6vw, 72px); padding-bottom: 40px;
}
.footer-brand img { width: 230px; margin-bottom: 16px; }
.footer-title {
  font-family: var(--font-brand); font-weight: 400; font-size: .9375rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--azzurro); margin-bottom: .9em;
}
.site-footer address { font-style: normal; margin-bottom: .6em; }
.site-footer a { color: var(--bianco); }
.site-footer a:hover { color: var(--azzurro); }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: .4em; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.18); padding-top: 18px; padding-bottom: 24px;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; font-size: .8125rem; color: rgba(255,255,255,.7);
}
.footer-bottom p { margin: 0; }

/* --- Responsive ---------------------------------------------------- */
@media (max-width: 960px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 860px) {
  .audit-grid, .studio-grid { grid-template-columns: 1fr; }
  .cards, .contact-grid, .value-grid { grid-template-columns: 1fr; }
  .sectors { grid-template-columns: repeat(2, 1fr); }
  .refs li { grid-template-columns: 1fr; gap: 2px; }
  .hero-panel { clip-path: polygon(70% 0, 100% 0, 100% 100%, 88% 100%); }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; text-align: center; }
  .steps li { grid-template-columns: 48px 1fr; padding: 18px 16px 14px; }
  .step-num { font-size: 1.6rem; }
}

@media print {
  .site-header, .nav-toggle, .hero-actions, .footer-cut { display: none; }
  .hero { clip-path: none; background: none; color: #000; margin: 0; padding: 0 0 24px; }
  .hero h1, .lead { color: #000; }
}