/**
 * Sana — Design System
 * Estratto da prototipo/source/shared.jsx
 * Token, reset, base, componenti riusabili, layout.
 */

/* ================================================================
   1. TOKENS (CSS custom properties)
   ================================================================ */
:root {
  /* Brand */
  --sana-teal:        #1E7A8C;
  --sana-teal-dark:   #155765;
  --sana-teal-deep:   #0D3B45;
  --sana-teal-light:  #E8F1F3;
  --sana-orange:      #F5A62E;
  --sana-orange-deep: #E08A18;
  --sana-orange-light:#FDF3E0;

  /* Neutrals (warm) */
  --sana-ink:    #0F1720;
  --sana-ink-80: #2A333F;
  --sana-ink-60: #55606D;
  --sana-ink-40: #8B93A0;
  --sana-ink-20: #CFD4DB;
  --sana-ink-10: #E6E9EE;
  --sana-ink-05: #F1F3F6;
  --sana-paper:  #FAF8F4;
  --sana-white:  #FFFFFF;

  /* Typography */
  --sana-sans:  "Inter Tight", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --sana-serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;
  --sana-mono:  "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  /* Layout */
  --sana-max:    1320px;
  --sana-pad-x:  64px;
  --sana-radius: 4px;
}

/* ================================================================
   2. RESET / BASE
   ================================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sana-sans);
  color: var(--sana-ink);
  background: var(--sana-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
  line-height: 1.5;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
a:hover { opacity: 0.85; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, h4, h5, h6, p, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }

/* ================================================================
   3. LAYOUT PRIMITIVES
   ================================================================ */
.sana-shell {
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
  background: var(--sana-paper);
}
.sana-section {
  padding: 80px var(--sana-pad-x);
}
.sana-section--lg { padding: 96px var(--sana-pad-x); }
.sana-section--sm { padding: 48px var(--sana-pad-x); }
.sana-section--paper { background: var(--sana-paper); }
.sana-section--white { background: var(--sana-white); }
.sana-section--teal-deep { background: var(--sana-teal-deep); color: var(--sana-white); }
.sana-section--teal { background: var(--sana-teal); color: var(--sana-white); }
.sana-section--ink { background: var(--sana-ink); color: var(--sana-white); }
.sana-section--bordered-top { border-top: 1px solid var(--sana-ink-10); }
.sana-section--bordered-bottom { border-bottom: 1px solid var(--sana-ink-10); }
.sana-container {
  max-width: var(--sana-max);
  margin: 0 auto;
}
.sana-container--narrow { max-width: 900px; }
.sana-container--wide  { max-width: 1440px; }

/* ================================================================
   4. TYPOGRAPHY
   ================================================================ */
.sana-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sana-sans);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--sana-teal);
}
.sana-eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: currentColor;
  display: inline-block;
}
.sana-eyebrow--orange { color: var(--sana-orange); }

.sana-h1 {
  font-family: var(--sana-sans);
  font-size: 72px;
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0;
}
.sana-h2 {
  font-family: var(--sana-sans);
  font-size: 48px;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin: 0;
}
.sana-h2--serif {
  font-family: var(--sana-serif);
  font-weight: 500;
}
.sana-h3 {
  font-family: var(--sana-sans);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
}
.sana-lede {
  font-size: 20px;
  line-height: 1.5;
  color: var(--sana-ink-60);
  margin-top: 24px;
  max-width: 720px;
}
.sana-section--teal-deep .sana-lede,
.sana-section--teal .sana-lede,
.sana-section--ink .sana-lede {
  color: rgba(255, 255, 255, 0.75);
}

.sana-mono {
  font-family: var(--sana-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
}

/* ================================================================
   5. BUTTONS
   ================================================================ */
.sana-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sana-sans);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  letter-spacing: -0.01em;
  border-radius: 999px;
  transition: transform 120ms ease, box-shadow 120ms ease, opacity 120ms ease;
  padding: 12px 20px;
  font-size: 14px;
  white-space: nowrap;
}
.sana-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
  opacity: 1;
}
.sana-btn--sm { padding: 8px 14px; font-size: 13px; }
.sana-btn--lg { padding: 16px 28px; font-size: 16px; }

.sana-btn--primary { background: var(--sana-teal); color: var(--sana-white); }
.sana-btn--orange  { background: var(--sana-orange); color: var(--sana-ink); }
.sana-btn--ghost   { background: transparent; color: var(--sana-ink); border: 1px solid var(--sana-ink-20); }
.sana-btn--ghost-light { background: transparent; color: var(--sana-white); border: 1px solid rgba(255,255,255,0.3); }
.sana-btn--dark    { background: var(--sana-ink); color: var(--sana-white); }

.sana-btn .sana-arrow {
  width: 16px; height: 16px; flex-shrink: 0;
}

/* ================================================================
   6. CHIPS
   ================================================================ */
.sana-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sana-sans);
  font-size: 12px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: var(--sana-radius);
  border: 1px solid transparent;
}
.sana-chip--default { background: var(--sana-ink-05); color: var(--sana-ink); }
.sana-chip--teal    { background: var(--sana-teal-light); color: var(--sana-teal-dark); }
.sana-chip--orange  { background: var(--sana-orange-light); color: var(--sana-orange-deep); }
.sana-chip--outline { background: transparent; color: var(--sana-ink); border-color: var(--sana-ink-20); }

/* ================================================================
   7. AVATAR (initials placeholder)
   ================================================================ */
.sana-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--sana-sans);
  font-weight: 600;
  letter-spacing: -0.02em;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}
.sana-avatar::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(135deg, transparent 0, transparent 6px, rgba(0,0,0,0.03) 6px, rgba(0,0,0,0.03) 7px);
}
.sana-avatar > span { position: relative; z-index: 1; font-size: calc(0.34 * 1em); }
.sana-avatar--teal   { background: var(--sana-teal-light); color: var(--sana-teal-dark); }
.sana-avatar--orange { background: var(--sana-orange-light); color: var(--sana-orange-deep); }

.sana-avatar--64  { width: 64px; height: 64px; font-size: 22px; }
.sana-avatar--88  { width: 88px; height: 88px; font-size: 30px; }
.sana-avatar--120 { width: 120px; height: 120px; font-size: 40px; }
.sana-avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; position: relative; z-index: 2; }

/* ================================================================
   8. IMAGE PLACEHOLDER (per default mockup aesthetic)
   ================================================================ */
.sana-img-ph {
  width: 100%;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 300px;
}
.sana-img-ph--teal {
  background:
    repeating-linear-gradient(135deg, transparent 0, transparent 12px, rgba(30,122,140,0.12) 12px, rgba(30,122,140,0.12) 13px),
    var(--sana-teal-light);
}
.sana-img-ph--orange {
  background:
    repeating-linear-gradient(135deg, transparent 0, transparent 12px, rgba(224,138,24,0.12) 12px, rgba(224,138,24,0.12) 13px),
    var(--sana-orange-light);
}
.sana-img-ph__label {
  font-family: var(--sana-mono);
  font-size: 11px;
  background: inherit;
  padding: 6px 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: center;
}
.sana-img-ph--teal .sana-img-ph__label   { color: var(--sana-teal); background: var(--sana-teal-light); }
.sana-img-ph--orange .sana-img-ph__label { color: var(--sana-orange-deep); background: var(--sana-orange-light); }

/* ================================================================
   9. CARDS
   ================================================================ */
.sana-card {
  background: var(--sana-white);
  border: 1px solid var(--sana-ink-10);
  padding: 24px;
}

/* ================================================================
   10. SECTION TITLE block
   ================================================================ */
.sana-section-title { max-width: 720px; }
.sana-section-title--center { margin-left: auto; margin-right: auto; text-align: center; }
.sana-section-title__eyebrow { margin-bottom: 16px; }
.sana-section-title__title { margin: 0; }
.sana-section-title__sub {
  margin-top: 20px;
  font-size: 18px;
  line-height: 1.55;
  color: var(--sana-ink-60);
}
.sana-section--teal-deep .sana-section-title__sub,
.sana-section--teal .sana-section-title__sub { color: rgba(255, 255, 255, 0.75); }

/* ================================================================
   11. NAV BAR (header)
   ================================================================ */
.sana-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(1.2) blur(12px);
  -webkit-backdrop-filter: saturate(1.2) blur(12px);
  border-bottom: 1px solid var(--sana-ink-10);
}
.sana-nav__inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 16px 32px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
}
.sana-nav__links {
  display: flex;
  gap: 28px;
  justify-content: center;
  flex-wrap: wrap;
}
.sana-nav__link {
  font-family: var(--sana-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--sana-ink-60);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}
.sana-nav__link.is-current { color: var(--sana-teal); border-bottom-color: var(--sana-teal); }
.sana-nav__cta { display: flex; align-items: center; gap: 10px; }
.sana-nav__area-aziende {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sana-sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--sana-ink);
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--sana-ink-10);
}
.sana-nav__preventivo {
  display: inline-flex;
  align-items: center;
  font-family: var(--sana-sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--sana-white);
  background: var(--sana-teal);
  padding: 9px 16px;
  border-radius: 999px;
}

/* ================================================================
   12. LOGO
   ================================================================ */
.sana-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: inherit;
}
.sana-logo__img { height: 32px; width: auto; }
.sana-logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.sana-logo__name {
  font-family: var(--sana-sans);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.02em;
}
.sana-logo__name .dot { color: var(--sana-orange); }
.sana-logo__tag {
  font-family: var(--sana-sans);
  font-weight: 500;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sana-ink-60);
  margin-top: 2px;
}
.sana-logo--light .sana-logo__name { color: var(--sana-white); }
.sana-logo--light .sana-logo__tag  { color: rgba(255, 255, 255, 0.65); }

/* ================================================================
   13. FOOTER
   ================================================================ */
.sana-footer {
  background: var(--sana-ink);
  color: var(--sana-white);
  padding: 72px 32px 32px;
  font-family: var(--sana-sans);
}
.sana-footer__inner {
  max-width: 1320px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 48px;
}
.sana-footer__intro {
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.65);
  max-width: 320px;
}
.sana-footer__badges { margin-top: 24px; display: flex; gap: 10px; flex-wrap: wrap; }
.sana-footer__badge {
  font-size: 11px;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: var(--sana-radius);
  letter-spacing: 0.05em;
}
.sana-footer__badge--orange {
  background: rgba(245, 166, 46, 0.15);
  color: var(--sana-orange);
}
.sana-footer__badge--neutral {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.8);
}
.sana-footer__col-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 16px;
}
.sana-footer__col ul { display: flex; flex-direction: column; gap: 10px; }
.sana-footer__col a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
}
.sana-footer__bottom {
  max-width: 1320px;
  margin: 56px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}
.sana-footer__legal-links { display: flex; gap: 24px; }
.sana-footer__legal-links a { color: inherit; }

/* ================================================================
   14. UTILITIES
   ================================================================ */
.sana-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.sana-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.sana-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.sana-grid-bordered {
  display: grid;
  gap: 1px;
  background: var(--sana-ink-10);
  border: 1px solid var(--sana-ink-10);
}
.sana-grid-bordered--3 { grid-template-columns: repeat(3, 1fr); }
.sana-grid-bordered > * { background: var(--sana-white); padding: 36px 28px; min-height: 220px; }

.sana-row-baseline {
  display: flex;
  justify-content: space-between;
  align-items: end;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 48px;
}

.sana-list--check {
  list-style: none; padding: 0; margin: 0;
}
.sana-list--check li {
  display: flex; gap: 12px; padding: 12px 0;
  font-size: 15px;
  border-top: 1px solid var(--sana-ink-05);
}
.sana-list--check li:first-child { border-top: 1px solid var(--sana-ink-10); }
.sana-list--check svg { color: var(--sana-teal); flex-shrink: 0; margin-top: 2px; }

.sana-only-desktop { display: block; }
.sana-only-mobile  { display: none; }

/* ================================================================
   15. PAGE HERO (interno)
   ================================================================ */
.sana-page-hero {
  padding: 80px var(--sana-pad-x) 96px;
  background: var(--sana-paper);
  border-bottom: 1px solid var(--sana-ink-10);
}
.sana-page-hero--dark {
  background: var(--sana-teal-deep);
  border-bottom: none;
  color: var(--sana-white);
}
.sana-page-hero__inner { max-width: 1320px; margin: 0 auto; }
.sana-page-hero__title {
  font-family: var(--sana-sans);
  font-size: 72px;
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 20px 0 0;
  max-width: 1000px;
}
.sana-page-hero__sub {
  margin-top: 24px;
  font-size: 20px;
  line-height: 1.5;
  max-width: 720px;
  color: var(--sana-ink-60);
}
.sana-page-hero--dark .sana-page-hero__sub { color: rgba(255, 255, 255, 0.75); }

/* ================================================================
   16. FORMS
   ================================================================ */
.sana-form {
  background: var(--sana-white);
  padding: 40px;
  border: 1px solid var(--sana-ink-10);
}
.sana-form__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.sana-form__field--full { grid-column: 1 / -1; }
.sana-form__label {
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sana-ink-60);
  margin-bottom: 8px;
  display: block;
}
.sana-form__input,
.sana-form__select,
.sana-form__textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--sana-ink-20);
  border-radius: var(--sana-radius);
  font-family: var(--sana-sans);
  font-size: 15px;
  background: var(--sana-white);
  color: var(--sana-ink);
  outline: none;
  box-sizing: border-box;
  appearance: none;
  -webkit-appearance: none;
}
.sana-form__select {
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2355606D' stroke-width='2' xmlns='http://www.w3.org/2000/svg'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}
.sana-form__textarea { min-height: 100px; resize: vertical; }
.sana-form__input:focus,
.sana-form__select:focus,
.sana-form__textarea:focus {
  border-color: var(--sana-teal);
  box-shadow: 0 0 0 3px rgba(30, 122, 140, 0.12);
}
.sana-form__honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.sana-form__privacy {
  display: flex;
  gap: 10px;
  font-size: 13px;
  color: var(--sana-ink-60);
  align-items: flex-start;
}
.sana-form__privacy input { margin-top: 3px; flex-shrink: 0; }
.sana-form__privacy a { color: var(--sana-teal); }
.sana-form__error {
  padding: 14px;
  background: #FEF2F2;
  border: 1px solid #FCA5A5;
  color: #991B1B;
  font-size: 14px;
  border-radius: var(--sana-radius);
}
.sana-form__success {
  background: var(--sana-white);
  padding: 48px;
  border: 1px solid var(--sana-ink-10);
  text-align: center;
}
.sana-form__success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: var(--sana-teal);
  color: var(--sana-white);
  display: flex;
  align-items: center;
  justify-content: center;
}
.sana-form__success-title {
  font-family: var(--sana-sans);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.sana-form__success-msg {
  font-size: 15px;
  color: var(--sana-ink-60);
  margin-top: 12px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* ================================================================
   17. CONTACT BLOCKS
   ================================================================ */
.sana-contact-row {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 20px;
}
.sana-contact-row__icon { color: var(--sana-teal); padding-top: 2px; }
.sana-contact-row__title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sana-ink-60);
}
.sana-contact-row__lines {
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sana-contact-row__lines a,
.sana-contact-row__lines span {
  font-size: 16px;
  font-weight: 500;
  color: inherit;
  text-decoration: none;
}

/* ================================================================
   18. ICONS (svg base)
   ================================================================ */
.sana-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.sana-icon--lg { width: 28px; height: 28px; }
.sana-icon--sm { width: 14px; height: 14px; }

/* ================================================================
   19. STAT NUMBERS
   ================================================================ */
.sana-stat__value {
  font-family: var(--sana-serif);
  font-size: 48px;
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1;
  color: var(--sana-teal);
}
.sana-stat__label {
  font-size: 14px;
  color: var(--sana-ink-60);
  margin-top: 4px;
}

/* ================================================================
   20. ANIMATIONS / MOTION
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}