/* ============================================================
   STUDIO TECNICO GEOM. MARCO ROSSI — sito dimostrativo
   style.css

   TEMPLATE RIUTILIZZABILE
   Per adattarlo a un altro cliente basta intervenire qui sotto:
   1. --brand / --brand-dark  → colore principale
   2. --font-title            → carattere dei titoli
   3. --radius                → angoli piu o meno morbidi
   Il resto del file non contiene nulla di specifico dell'attivita.
   ============================================================ */

:root {
  --brand:      #1d4e89;
  --brand-dark: #163c6b;
  --brand-soft: #eef3f9;

  --ink:        #1f2933;
  --ink-soft:   #3e4c59;
  --muted:      #64748b;

  --bg:         #ffffff;
  --bg-soft:    #f6f7f9;
  --line:       #e2e6ea;

  --font-title: Georgia, "Times New Roman", serif;
  --font-body:  -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                "Helvetica Neue", Arial, sans-serif;

  --radius:     4px;
  --wrap:       1080px;
  --shadow:     0 1px 2px rgba(31, 41, 51, 0.06),
                0 8px 24px rgba(31, 41, 51, 0.06);
}

/* ── RESET ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a   { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
ul  { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-title);
  color: var(--ink);
  line-height: 1.25;
  font-weight: 700;
}

/* ── LAYOUT ───────────────────────────────────────────────── */
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

.section { padding: 72px 0; }
.section--soft { background: var(--bg-soft); border-block: 1px solid var(--line); }

.section__head { max-width: 640px; margin-bottom: 40px; }
.section__head--center { margin-inline: auto; text-align: center; }

.eyebrow {
  font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--brand); font-weight: 600; margin-bottom: 10px;
}

.section h2 { font-size: 1.85rem; margin-bottom: 12px; }
.section p  { color: var(--ink-soft); }

.lead { font-size: 1.05rem; color: var(--muted); }

/* ── BOTTONI ──────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: var(--radius);
  background: var(--brand);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid var(--brand);
  transition: background 0.18s ease, border-color 0.18s ease;
}
.btn:hover { background: var(--brand-dark); border-color: var(--brand-dark); text-decoration: none; }

.btn--ghost { background: transparent; color: var(--brand); }
.btn--ghost:hover { background: var(--brand-soft); color: var(--brand-dark); }

/* ── HEADER ───────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; min-height: 76px;
}

.brand { display: flex; align-items: center; gap: 12px; color: inherit; }
.brand:hover { text-decoration: none; }
.brand__mark {
  width: 42px; height: 42px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--brand); color: #fff;
  font-family: var(--font-title); font-size: 0.95rem; letter-spacing: 0.04em;
  border-radius: var(--radius);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.25; }
.brand__text strong {
  font-family: var(--font-title); font-size: 1rem; color: var(--ink);
}
.brand__text span { font-size: 0.8rem; color: var(--muted); }

.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav a { color: var(--ink-soft); font-size: 0.93rem; }
.site-nav a:hover { color: var(--brand); text-decoration: none; }
.site-nav a.is-current { color: var(--brand); font-weight: 600; }

.site-nav__phone {
  padding: 9px 18px; border: 1px solid var(--line);
  border-radius: var(--radius); font-weight: 600; color: var(--brand) !important;
}
.site-nav__phone:hover { background: var(--brand-soft); }

.nav-toggle {
  display: none; width: 42px; height: 42px;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  background: none; border: 1px solid var(--line); border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle span {
  display: block; width: 18px; height: 2px; background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ── HERO ─────────────────────────────────────────────────── */
.hero {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  padding: 76px 0;
}
.hero__grid {
  display: grid; grid-template-columns: 1.15fr 0.85fr;
  gap: 48px; align-items: center;
}
.hero h1 { font-size: 2.5rem; margin-bottom: 18px; }
.hero p  { font-size: 1.05rem; color: var(--ink-soft); margin-bottom: 26px; max-width: 46ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; }

.hero__card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 28px 30px;
}
.hero__card h2 { font-size: 1.1rem; margin-bottom: 16px; }
.hero__card dl { display: grid; gap: 14px; }
.hero__card dt {
  font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted);
}
.hero__card dd { font-size: 0.95rem; color: var(--ink); }

/* ── PAGE HEADER (pagine interne) ─────────────────────────── */
.page-head {
  background: var(--bg-soft); border-bottom: 1px solid var(--line);
  padding: 54px 0;
}
.page-head h1 { font-size: 2.1rem; margin-bottom: 10px; }
.page-head p  { color: var(--muted); max-width: 60ch; }

.breadcrumb { font-size: 0.82rem; color: var(--muted); margin-bottom: 14px; }
.breadcrumb a { color: var(--muted); }

/* ── GRIGLIE E CARD ───────────────────────────────────────── */
.grid { display: grid; gap: 22px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.card:hover { border-color: #c9d4e0; box-shadow: var(--shadow); }
.card h3 { font-size: 1.12rem; margin-bottom: 10px; }
.card p  { font-size: 0.94rem; }

.card__num {
  font-family: var(--font-title); font-size: 0.85rem;
  color: var(--brand); margin-bottom: 12px; display: block;
}

/* ── ELENCHI ──────────────────────────────────────────────── */
.ticks { display: grid; gap: 11px; }
.ticks li { position: relative; padding-left: 26px; font-size: 0.95rem; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 0.5em;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--brand); opacity: 0.55;
}

.detail { border-top: 1px solid var(--line); padding-top: 26px; margin-top: 26px; }
.detail:first-child { border-top: 0; padding-top: 0; margin-top: 0; }
.detail h3 { font-size: 1.2rem; margin-bottom: 8px; }
.detail p  { margin-bottom: 12px; }

/* ── CTA ──────────────────────────────────────────────────── */
.cta {
  background: var(--brand); color: #fff;
  padding: 56px 0; text-align: center;
}
.cta h2 { color: #fff; font-size: 1.7rem; margin-bottom: 10px; }
.cta p  { color: rgba(255, 255, 255, 0.85); margin-bottom: 24px; }
.cta .btn { background: #fff; color: var(--brand); border-color: #fff; }
.cta .btn:hover { background: var(--brand-soft); }

/* ── CONTATTI ─────────────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }

.contact-list { display: grid; gap: 20px; }
.contact-list dt {
  font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 3px;
}
.contact-list dd { font-size: 1rem; color: var(--ink); }

.form { display: grid; gap: 16px; }
.form label { font-size: 0.85rem; font-weight: 600; color: var(--ink); display: block; margin-bottom: 6px; }
.form input,
.form textarea {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--line); border-radius: var(--radius);
  font-family: inherit; font-size: 0.95rem; color: var(--ink); background: #fff;
}
.form input:focus,
.form textarea:focus { outline: 2px solid var(--brand); outline-offset: 1px; border-color: var(--brand); }
.form textarea { min-height: 130px; resize: vertical; }

.note {
  font-size: 0.85rem; color: var(--muted);
  background: var(--brand-soft); border-left: 3px solid var(--brand);
  padding: 12px 16px; border-radius: 0 var(--radius) var(--radius) 0;
}

/* ── FOOTER ───────────────────────────────────────────────── */
.site-footer {
  background: #1b2430; color: #b6c2cf;
  padding: 52px 0 26px; font-size: 0.9rem;
}
.site-footer h4 {
  color: #fff; font-size: 0.95rem; margin-bottom: 12px;
  font-family: var(--font-body); letter-spacing: 0.02em;
}
.site-footer a { color: #b6c2cf; }
.site-footer a:hover { color: #fff; }
.site-footer__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.site-footer__grid p { color: #b6c2cf; margin-bottom: 4px; }

.site-footer__bottom {
  margin-top: 40px; padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px;
  font-size: 0.82rem;
}
.site-footer__demo { color: #8fa0b2; }

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 860px) {
  .hero__grid    { grid-template-columns: 1fr; gap: 34px; }
  .grid--3       { grid-template-columns: repeat(2, 1fr); }
  .contact-grid  { grid-template-columns: 1fr; gap: 32px; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .nav-toggle { display: flex; }

  .site-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 8px 24px 18px;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .site-nav a:last-child { border-bottom: 0; }
  .site-nav__phone { margin-top: 12px; text-align: center; }

  .site-header__inner { position: relative; min-height: 66px; }

  .hero    { padding: 52px 0; }
  .hero h1 { font-size: 1.95rem; }
  .section { padding: 52px 0; }
  .section h2 { font-size: 1.5rem; }

  .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; gap: 26px; }
}

@media (max-width: 400px) {
  .wrap { padding: 0 18px; }
  .brand__text strong { font-size: 0.92rem; }
  .hero h1 { font-size: 1.7rem; }
  .hero__actions .btn { width: 100%; text-align: center; }
}