/* =========================================================
   Valentina Tropeano — Traduzioni EN -> IT
   Direzione: "Il testo a fronte" — editoriale caldo su carta
   ========================================================= */

:root {
  /* Colore — carta / inchiostro / rosso-revisione (OKLCH) */
  --paper:       oklch(0.962 0.012 83);   /* avorio caldo, bg */
  --paper-2:     oklch(0.934 0.015 82);   /* sezione alternata */
  --ink:         oklch(0.235 0.012 60);   /* quasi-nero caldo, fg */
  --ink-soft:    oklch(0.455 0.014 58);   /* fg secondario / source EN */
  --accent:      oklch(0.505 0.155 27);   /* rosso cremisi — segno del revisore */
  --accent-deep: oklch(0.455 0.150 27);   /* rosso per testo piccolo su carta (AA) */
  --border:      oklch(0.862 0.014 80);   /* filetti tenui */
  --paper-glass: oklch(0.962 0.012 83 / 0.92);
  --paper-dim:    oklch(0.78 0.012 80);   /* testo tenue su footer scuro */
  --paper-dimmer: oklch(0.72 0.012 80);   /* meta footer */
  --accent-light: oklch(0.82 0.09 27);    /* hover link su footer scuro */

  /* Tipografia */
  --font-display: "Schibsted Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body:    "Newsreader", Georgia, "Times New Roman", serif;

  /* Spaziatura */
  --space-section: clamp(4.25rem, 9vw, 8rem);
  --container:     72rem;
  --measure:       40rem;

  --radius: 4px;
  --header-h: 64px;
}

/* ---------- Reset essenziale ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 8px);
}

body {
  background-color: var(--paper);
  background-image: url("/images/paper-texture.svg");
  background-repeat: repeat;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;          /* ~17px */
  line-height: 1.65;
  font-optical-sizing: auto;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

::selection { background: var(--accent); color: var(--paper); }

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

.skip-link {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translate(-50%, -120%);
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 1rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  z-index: 200;
  transition: transform 0.18s ease;
}
.skip-link:focus { transform: translate(-50%, 0.5rem); }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.measure { max-width: var(--measure); }

.section { padding-block: var(--space-section); }
.section-alt { background: var(--paper-2); }

/* ---------- Tipografia comune ---------- */
.eyebrow {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  margin-bottom: 1.1rem;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4.4vw, 2.7rem);
  line-height: 1.08;
  letter-spacing: -0.018em;
  color: var(--ink);
  margin-bottom: 1.4rem;
  text-wrap: balance;
}

.section p { color: var(--ink); }
.section p + p { margin-top: 1.1rem; }

.section-intro { color: var(--ink-soft); }

.arrow, .gloss-arrow, .arr { color: var(--accent); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--paper-glass);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
  white-space: nowrap;
}
.wordmark-dot { color: var(--accent); }

.nav-desktop { display: none; }

.nav-desktop a {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink);
  padding: 0.5rem 0;
  position: relative;
}
.nav-desktop a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0.15rem;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s ease;
}
.nav-desktop a:hover::after,
.nav-desktop a:focus-visible::after { transform: scaleX(1); }

/* Hamburger */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 0;
  cursor: pointer;
}
.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  margin-inline: auto;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

/* ---------- Mobile menu (overlay fisso) ---------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--paper);
  background-image: url("/images/paper-texture.svg");
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.mobile-menu-inner {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: center;
}
.mobile-menu-inner a {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.6rem;
  text-decoration: none;
  color: var(--ink);
  padding: 0.7rem 1.5rem;
  min-height: 44px;
}
.mobile-menu-inner a:active { color: var(--accent); }

body.menu-open { overflow: hidden; }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(3.5rem, 9vw, 7rem); }

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.3rem, 7.2vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-top: 0.4rem;
  text-wrap: balance;
}
.hero-title-em { color: var(--accent); }

/* Signature: glossario "testo a fronte" */
.glossary {
  margin-top: clamp(2rem, 5vw, 3.2rem);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding-block: 0.4rem;
  max-width: 30rem;
}
.gloss-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: baseline;
  column-gap: clamp(0.6rem, 3vw, 1.4rem);
  padding-block: 0.7rem;
}
.gloss-row + .gloss-row { border-top: 1px solid var(--border); }

.glossary dt {
  font-family: var(--font-body);
  font-style: italic;
  font-size: clamp(1.25rem, 3.6vw, 1.85rem);
  color: var(--ink-soft);
  text-align: right;
}
.glossary dd {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 3.8vw, 1.95rem);
  letter-spacing: -0.01em;
  color: var(--ink);
}
.gloss-arrow {
  font-size: clamp(1rem, 2.6vw, 1.3rem);
  transform: translateY(-0.05em);
}

.hero-lead {
  font-size: clamp(1.06rem, 1.8vw, 1.28rem);
  line-height: 1.6;
  color: var(--ink);
  max-width: 34rem;
  margin-top: clamp(2rem, 4vw, 2.6rem);
}

.hero-cue {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 2.2rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--ink);
  min-height: 44px;
}
.hero-cue-arrow {
  color: var(--accent);
  transition: transform 0.2s ease;
}
.hero-cue:hover .hero-cue-arrow { transform: translateY(3px); }

/* ---------- Profilo ---------- */
.profilo-grid { display: grid; gap: clamp(2rem, 5vw, 3.5rem); }
.profilo-text p { max-width: 36rem; }
.profilo-text p + p { margin-top: 1.1rem; }

.profilo-figure {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.profilo-figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- Metodo ---------- */
.principles {
  display: grid;
  gap: 1px;
  margin-top: clamp(2.2rem, 5vw, 3.2rem);
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.principle {
  background: var(--paper-2);
  padding: clamp(1.6rem, 4vw, 2.4rem);
}
.principle-head {
  font-size: 1.18rem;
  font-weight: 400;
  margin-bottom: 0.8rem;
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  flex-wrap: wrap;
}
.principle-head .src {
  font-family: var(--font-body);
  font-style: italic;
  color: var(--ink-soft);
}
.principle-head .tgt {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.32rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.principle p { color: var(--ink); max-width: 38rem; }

/* ---------- Contatto ---------- */
.contatto-email {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 4.5vw, 2.1rem);
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-top: 1.6rem;
  word-break: break-word;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}
.contatto-note {
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin-top: 1.3rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: var(--paper);
  padding-block: clamp(2.6rem, 5vw, 3.6rem);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}
.footer-wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  display: block;
}
.footer-tag {
  font-size: 0.95rem;
  color: var(--paper-dim);
  display: block;
  margin-top: 0.4rem;
}
.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--paper-dimmer);
}
.footer-credit a {
  color: var(--paper);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.footer-credit a:hover { color: var(--accent-light); }

/* ---------- Reveal motion ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }

/* =========================================================
   Desktop / breakpoint
   ========================================================= */
@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .nav-desktop { display: flex; gap: 2rem; }
  .mobile-menu { display: none; }

  .header-inner { min-height: 72px; }
  :root { --header-h: 72px; }

  .profilo-grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
  }

  .principles { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1100px) {
  .hero-lead { font-size: 1.32rem; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}