/* ============================================================
   Studio Dentistico Bianchi – San Donato Milanese
   Foglio di stile principale
   ============================================================ */

:root {
  --primary: #235787;
  --primary-dark: #08306a;
  --primary-light: #e6eef6;
  --accent: #1e73be;
  --ink: #0f172a;
  --muted: #475569;
  --bg: #ffffff;
  --bg-alt: #f2f6fb;
  --border: #d8e0ea;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(8, 48, 106, 0.12);
  --maxw: 1140px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
}

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

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Top bar ---------- */
.topbar {
  background: var(--primary-dark);
  color: #fff;
  font-size: 14px;
  padding: 6px 0;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.topbar a { color: #fff; font-weight: 600; }
.topbar a:hover { color: var(--accent); }

/* ---------- Header / Nav ---------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.05);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 700;
}
.brand:hover { color: var(--primary-dark); }
.brand .logo-mark { width: 44px; height: 44px; flex-shrink: 0; }
.brand .site-logo { height: 50px; width: auto; max-width: 62vw; display: block; }
.brand .brand-name { font-size: 19px; line-height: 1.2; }
.brand .brand-sub {
  display: block;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.main-nav ul {
  display: flex;
  gap: 6px;
  list-style: none;
}
.main-nav a {
  display: block;
  padding: 10px 16px;
  border-radius: 8px;
  color: var(--ink);
  font-weight: 600;
  font-size: 15.5px;
}
.main-nav a:hover { background: var(--primary-light); color: var(--primary-dark); }
.main-nav a.active { background: var(--primary); color: #fff; }

.nav-toggle {
  display: none;
  background: none;
  border: 2px solid var(--primary);
  border-radius: 8px;
  padding: 8px 12px;
  color: var(--primary);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 55%, #1e73be 100%);
  color: #fff;
  padding: 90px 0;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 460px;
  height: 460px;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 50%;
}
.hero .container { position: relative; z-index: 1; max-width: 820px; text-align: center; }
.hero h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.15; margin-bottom: 18px; }
.hero p.lead { font-size: clamp(17px, 2.2vw, 21px); opacity: 0.92; margin-bottom: 32px; }
.hero .btn-group { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  padding: 54px 0;
  text-align: center;
}
.page-hero h1 { font-size: clamp(26px, 4vw, 38px); }
.page-hero p { opacity: 0.9; margin-top: 8px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 16px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-primary { background: #fff; color: var(--primary-dark); }
.btn-primary:hover { color: var(--primary-dark); }
.btn-outline { border-color: #fff; color: #fff; }
.btn-outline:hover { background: #fff; color: var(--primary-dark); }
.btn-solid { background: var(--primary); color: #fff; }
.btn-solid:hover { background: var(--primary-dark); color: #fff; }

/* ---------- Sections ---------- */
.section { padding: 72px 0; }
.section.alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 44px; }
.section-head h2 { font-size: clamp(24px, 3.4vw, 34px); color: var(--primary-dark); margin-bottom: 12px; }
.section-head p { color: var(--muted); }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.two-col h2, .prose h2 { color: var(--primary-dark); font-size: 28px; margin-bottom: 16px; }
.two-col h3, .prose h3 { color: var(--primary-dark); font-size: 21px; margin: 22px 0 10px; }
.two-col p, .prose p { color: var(--muted); margin-bottom: 14px; }
.prose ul { color: var(--muted); margin: 0 0 14px 22px; }
.prose li { margin-bottom: 8px; }

.figure {
  background: var(--primary-light);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

/* ---------- Cards ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card .icon {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.card .icon svg { width: 32px; height: 32px; }
.card h3 { color: var(--primary-dark); font-size: 19px; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15.5px; }

/* ---------- Staff ---------- */
.staff-card {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 36px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
  align-items: start;
}
.staff-photo {
  background: var(--primary-light);
  border-radius: var(--radius);
  overflow: hidden;
}
.staff-card h3 { color: var(--primary-dark); font-size: 24px; margin-bottom: 4px; }
.staff-card .role { color: var(--primary); font-weight: 700; margin-bottom: 16px; }

.badge {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 13.5px;
  font-weight: 700;
  margin: 0 6px 8px 0;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 44px;
  align-items: start;
}
.info-list { list-style: none; }
.info-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}
.info-list li:last-child { border-bottom: 0; }
.info-list .icon {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
}
.info-list .icon svg { width: 22px; height: 22px; }
.info-list strong { display: block; color: var(--ink); }

.form-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px;
  box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; font-size: 14.5px; margin-bottom: 6px; }
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font: inherit;
  font-size: 15.5px;
  color: var(--ink);
  background: #fbfdfe;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: 2px solid var(--accent);
  border-color: var(--accent);
  background: #fff;
}
.form-check { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 20px; font-size: 14px; color: var(--muted); }
.form-check input { margin-top: 4px; }
.form-note { font-size: 13px; color: var(--muted); margin-top: 14px; }

.map-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-top: 56px;
}
.map-wrap iframe { display: block; width: 100%; height: 420px; border: 0; }

/* ---------- CTA strip ---------- */
.cta-strip {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff;
  padding: 56px 0;
  text-align: center;
}
.cta-strip h2 { font-size: clamp(22px, 3vw, 30px); margin-bottom: 10px; }
.cta-strip p { opacity: 0.9; margin-bottom: 24px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #cbd5e1; padding: 56px 0 0; font-size: 15px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.site-footer h4 { color: #fff; font-size: 16px; margin-bottom: 14px; }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: #cbd5e1; }
.site-footer a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 18px 0;
  font-size: 13.5px;
  text-align: center;
  color: #94a3b8;
}

/* ---------- Cookie banner ---------- */
.cookie-banner {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 999;
  background: var(--ink);
  color: #e2e8f0;
  border-radius: var(--radius);
  padding: 18px 22px;
  display: none;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  font-size: 14.5px;
}
.cookie-banner.visible { display: flex; }
.cookie-banner a { color: var(--accent); }
.cookie-banner .btn { padding: 10px 22px; font-size: 14.5px; }

/* ---------- Alert (form feedback) ---------- */
.alert {
  border-radius: 10px;
  padding: 14px 18px;
  margin-bottom: 18px;
  font-size: 15px;
  display: none;
}
.alert.visible { display: block; }
.alert.error { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.alert.success { background: #f0fdf4; color: #15803d; border: 1px solid #bbf7d0; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .two-col, .contact-grid { grid-template-columns: 1fr; }
  .staff-card { grid-template-columns: 1fr; }
  .staff-photo { max-width: 280px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.12);
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; padding: 12px 20px 18px; }
  .grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding: 64px 0; }
}