/* ==========================================================================
   timoteopasquali.it — Design system
   Mobile-first. Palette monocromatica su base chiara (#1B3A4B).
   ========================================================================== */

@font-face {
  font-family: "Space Grotesk";
  src: url("../fonts/SpaceGrotesk-Variable.woff2") format("woff2-variations"),
       url("../fonts/SpaceGrotesk-Variable.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Colore primario: testo, icone, accenti, hero/CTA */
  --color-primary: #1B3A4B;
  --color-primary-hover: #234b60;
  --color-primary-tint: #4a6270;

  /* Base chiara */
  --color-bg: #ffffff;
  --color-bg-alt: #f5f8f9;
  --color-bg-institutional: #fafbfb;
  --color-border: #dfe6e9;
  --color-border-strong: #c3ced2;

  /* Testo */
  --color-text: #1B3A4B;
  --color-text-muted: #5c7280;
  --color-on-primary: #ffffff;
  --color-on-primary-muted: #cfdbe1;

  /* Stato */
  --color-success: #1f7a4d;
  --color-error: #b3352b;

  --font-body: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container-max: 74rem;
  --radius: 10px;
  --radius-sm: 6px;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --shadow-sm: 0 1px 3px rgba(27, 58, 75, 0.08);
  --shadow-md: 0 6px 24px rgba(27, 58, 75, 0.10);

  --transition: 180ms ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; height: auto; }
svg { display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { padding: 0; margin: 0; list-style: none; }
h1, h2, h3, h4, p, figure { margin: 0; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ---------- Tipografia ---------- */
h1, h2, h3, h4 { font-weight: 500; line-height: 1.2; }

h1 { font-size: clamp(2rem, 5.5vw, 3.2rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 3.6vw, 2.1rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.15rem, 2.4vw, 1.4rem); }
h4 { font-size: 1.05rem; }

.lead {
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary-tint);
  margin-bottom: var(--space-1);
}

.text-muted { color: var(--color-text-muted); }

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-2);
}

.section { padding-block: var(--space-5); }
.section--tight { padding-block: var(--space-4); }
.section--alt { background: var(--color-bg-alt); }

.stack { display: flex; flex-direction: column; gap: var(--space-3); }

.grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 0.6em 1em;
  z-index: 200;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-1);
  gap: var(--space-2);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 500;
  font-size: 1.05rem;
  color: var(--color-primary);
  flex-shrink: 0;
}
.brand img { width: 34px; height: 34px; }
.brand .brand__name b { font-weight: 700; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: transparent;
}
.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-primary);
  position: relative;
}
.nav-toggle { flex-direction: column; gap: 5px; }

.site-nav {
  position: fixed;
  inset: 0 0 0 auto;
  width: min(80vw, 320px);
  height: 100vh;
  background: var(--color-bg);
  border-left: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-3);
  transform: translateX(100%);
  transition: transform var(--transition);
  overflow-y: auto;
}
.site-nav.is-open { transform: translateX(0); }

.site-nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: 1.1rem;
}
.site-nav__list a {
  display: block;
  padding: 0.4em 0;
  border-bottom: 1px solid var(--color-border);
}
.site-nav__list a[aria-current="page"] { font-weight: 500; color: var(--color-primary); }

.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(27, 58, 75, 0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
  z-index: 90;
}
.nav-backdrop.is-open { opacity: 1; pointer-events: auto; }

@media (min-width: 860px) {
  .nav-toggle, .nav-backdrop { display: none; }
  .site-nav {
    position: static;
    width: auto;
    height: auto;
    background: transparent;
    border: 0;
    padding: 0;
    transform: none;
  }
  .site-nav__list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-3);
    font-size: 0.95rem;
  }
  .site-nav__list a { border: 0; padding: 0.2em 0; }
  .site-nav__list a[aria-current="page"] {
    box-shadow: inset 0 -2px 0 var(--color-primary);
  }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.85em 1.5em;
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.98rem;
  border: 1.5px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}
.btn--primary:hover { background: var(--color-primary-hover); }

.btn--outline {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn--outline:hover { background: var(--color-primary); color: var(--color-on-primary); }

.btn--on-dark {
  background: #ffffff;
  color: var(--color-primary);
}
.btn--on-dark:hover { background: var(--color-on-primary-muted); }

.btn--on-dark-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.6);
  color: var(--color-on-primary);
}
.btn--on-dark-outline:hover { border-color: #fff; background: rgba(255,255,255,0.08); }

.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-2); }

/* ---------- Hero ---------- */
.hero {
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding-block: var(--space-6) var(--space-5);
}
.hero .eyebrow { color: var(--color-on-primary-muted); }
.hero h1 { color: #fff; max-width: 20ch; }
.hero .lead { color: var(--color-on-primary-muted); max-width: 48ch; margin-top: var(--space-2); }
.hero .btn-row { margin-top: var(--space-3); }

.page-hero {
  padding-block: var(--space-5) var(--space-4);
  border-bottom: 1px solid var(--color-border);
}
.page-hero .eyebrow { color: var(--color-primary-tint); }

/* ---------- Cards ---------- */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  transition: box-shadow var(--transition), border-color var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); border-color: var(--color-border-strong); }
.card h3 { color: var(--color-primary); }
.card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4em;
  margin-top: var(--space-1);
}
.tag {
  font-size: 0.78rem;
  padding: 0.25em 0.75em;
  border-radius: 999px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}
.card__status {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}
.card__status::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  flex-shrink: 0;
}

.flag-card {
  border: 1.5px solid var(--color-primary);
  background: var(--color-bg-alt);
}

/* ---------- Project detail sections ---------- */
.project {
  padding-block: var(--space-5);
  border-bottom: 1px solid var(--color-border);
  scroll-margin-top: 90px;
}
.project:last-of-type { border-bottom: 0; }
.project__header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-1);
  margin-bottom: var(--space-2);
}
.project__grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
  margin-top: var(--space-3);
}
@media (min-width: 760px) {
  .project__grid { grid-template-columns: repeat(2, 1fr); }
}
.project__block h3 {
  color: var(--color-primary-tint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.78rem;
  font-weight: 500;
  margin-bottom: 0.5em;
}
.project__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4em;
  margin-top: var(--space-2);
}

/* ---------- Institutional section (più sobria) ---------- */
.institutional {
  background: var(--color-bg-institutional);
}
.institutional .card {
  border-radius: var(--radius-sm);
  box-shadow: none;
}
.institutional .card:hover { box-shadow: none; border-color: var(--color-border-strong); }
.disclaimer {
  border-left: 3px solid var(--color-primary);
  padding: var(--space-2) var(--space-3);
  background: #fff;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---------- Forms ---------- */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4em;
}
.form-field label { font-size: 0.9rem; font-weight: 500; }
.form-field input,
.form-field textarea {
  padding: 0.85em 1em;
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: 1rem;
}
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 58, 75, 0.12);
}
.form-field textarea { resize: vertical; min-height: 140px; }
.form-honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-status {
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  display: none;
}
.form-status.is-visible { display: block; }
.form-status--success { background: #eaf5ef; color: var(--color-success); border: 1px solid #bfe3cc; }
.form-status--error { background: #fbeceb; color: var(--color-error); border: 1px solid #f0c6c2; }

/* ---------- Contact page extras ---------- */
.vcard-block {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
}
.vcard-block__qr {
  width: 140px;
  height: 140px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-1);
  background: #fff;
  flex-shrink: 0;
}
.contact-links { display: flex; flex-direction: column; gap: var(--space-1); margin-top: var(--space-2); }
.contact-links a { color: var(--color-primary); font-weight: 500; }
.contact-links a:hover { text-decoration: underline; }

/* ---------- CTA final ---------- */
.cta-final {
  background: var(--color-primary);
  color: var(--color-on-primary);
  text-align: center;
  padding-block: var(--space-6);
}
.cta-final h2 { color: #fff; }
.cta-final p { color: var(--color-on-primary-muted); margin-top: var(--space-1); }
.cta-final .btn-row { justify-content: center; margin-top: var(--space-3); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-4);
  background: var(--color-bg-alt);
}
.site-footer__grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}
@media (min-width: 700px) {
  .site-footer__grid { grid-template-columns: 2fr 1fr 1fr; }
}
.site-footer h3 { font-size: 0.85rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-primary-tint); margin-bottom: 0.8em; }
.site-footer nav a,
.site-footer address a {
  display: block;
  padding-block: 0.25em;
  color: var(--color-text-muted);
}
.site-footer nav a:hover,
.site-footer address a:hover { color: var(--color-primary); }
.site-footer address { font-style: normal; }
.site-footer__bottom {
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}
.site-footer__bottom a:hover { color: var(--color-primary); }

/* ---------- Legal pages ---------- */
.legal { max-width: 68ch; }
.legal h2 { margin-top: var(--space-4); }
.legal p, .legal li { color: var(--color-text-muted); }
.legal ul { list-style: disc; padding-left: 1.3em; margin-top: 0.5em; }
.legal li { margin-bottom: 0.4em; }
.legal strong { color: var(--color-text); }

/* ---------- Utilities ---------- */
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.center { text-align: center; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}