/* ==========================================================================
   Sarullo Engineering — foglio di stile unico per tutte le lingue
   Palette: blu di Prussia (un pigmento cristallino), ghiaccio come accento,
   ottone solo per i segnali luminosi dell'animazione.
   ========================================================================== */

/* ---------- Font (self-hosted, nessuna chiamata a servizi esterni) ---------- */
@font-face {
  font-family: "Commissioner";
  src: url("/assets/fonts/commissioner-latin.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Commissioner";
  src: url("/assets/fonts/commissioner-latin-ext.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Commissioner";
  src: url("/assets/fonts/commissioner-cyrillic.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
}

/* ---------- Token ---------- */
:root {
  --prussian: #0E1A2B;   /* fondo */
  --night:    #09121F;   /* contatti e footer */
  --line:     #22344C;   /* righe e bordi */
  --ice:      #9BE7EE;   /* accento */
  --brass:    #E2B35C;   /* solo segnali */
  --frost:    #E6EEF3;   /* testo principale */
  --mist:     #A3B2C2;   /* testo secondario */

  --font: "Commissioner", system-ui, -apple-system, "Segoe UI", sans-serif;

  --fs-small: 0.875rem;   /* 14 */
  --fs-body:  1.0625rem;  /* 17 */
  --fs-lead:  1.3125rem;  /* 21 */
  --fs-h3:    1.25rem;    /* 20 */
  --fs-h2:    clamp(1.75rem, 3.6vw, 2.25rem);   /* 28–36 */
  --fs-claim: clamp(1.5rem, 3.4vw, 2.375rem);   /* 24–38 */
  --fs-hero:  clamp(2.75rem, 8.4vw, 6.25rem);   /* 44–100 */

  --measure: 34em;
  --gutter: clamp(1rem, 4vw, 3rem);
  --max: 72rem;
  --section-space: clamp(4.5rem, 11vw, 8.5rem);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; background: var(--prussian); }
body {
  margin: 0;
  background: var(--prussian);
  color: var(--frost);
  font-family: var(--font);
  font-size: var(--fs-body);
  font-weight: 360;
  line-height: 1.65;
  font-feature-settings: "kern", "liga";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img, svg, canvas { display: block; max-width: 100%; }
h1, h2, h3 { margin: 0; font-weight: 500; line-height: 1.15; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.22em; }
a:hover { text-decoration-thickness: 2px; }
strong { font-weight: 560; color: var(--frost); }
:focus-visible { outline: 2px solid var(--ice); outline-offset: 3px; border-radius: 2px; }

.skip-link {
  position: absolute; left: var(--gutter); top: -3rem;
  background: var(--ice); color: var(--prussian); padding: .5rem 1rem; z-index: 20;
}
.skip-link:focus { top: .75rem; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Logo (header e footer) ---------- */
.logo { width: 2.25rem; height: 2.25rem; flex: none; color: var(--ice); }

/* ---------- Header ---------- */
.site-header { position: absolute; inset: 0 0 auto 0; z-index: 10; }
.site-header .wrap {
  display: flex; align-items: center; gap: 1.75rem;
  padding-top: 1.25rem; padding-bottom: 1.25rem;
}
.brand {
  display: flex; align-items: center; gap: .75rem;
  text-decoration: none; margin-right: auto;
}
.brand__name { font-size: 1rem; font-weight: 520; letter-spacing: .01em; line-height: 1.2; }

.site-nav ul { display: flex; gap: 1.75rem; list-style: none; margin: 0; padding: 0; }
.site-nav a { text-decoration: none; font-size: .9375rem; color: var(--mist); }
.site-nav a:hover { color: var(--frost); }

.lang-switch { display: flex; gap: .125rem; list-style: none; margin: 0; padding: 0; font-size: .8125rem; }
.lang-switch a {
  display: block; padding: .3rem .55rem; text-decoration: none; border-radius: 3px; color: var(--mist);
}
.lang-switch a:hover { color: var(--frost); }
.lang-switch a[aria-current="true"] { color: var(--ice); box-shadow: inset 0 0 0 1px rgba(155, 231, 238, .35); }

/* ---------- Hero ---------- */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: 100svh;
  display: flex; align-items: flex-end;
  background:
    radial-gradient(ellipse 60% 55% at 72% 42%, #16294A 0%, rgba(14,26,43,0) 70%),
    var(--prussian);
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; }
.hero::after {
  /* velatura che tiene leggibile il testo sopra l'animazione */
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(90deg, rgba(14,26,43,.9) 0%, rgba(14,26,43,.45) 40%, rgba(14,26,43,0) 62%);
}
.hero .wrap { padding-top: 8rem; padding-bottom: clamp(3.5rem, 9vw, 7rem); }
.hero h1 {
  font-size: var(--fs-hero); font-weight: 200; letter-spacing: -0.04em; line-height: .95;
  max-width: 8ch;
}
.hero__claim {
  font-size: var(--fs-claim); font-weight: 340; letter-spacing: -0.015em; line-height: 1.2;
  color: var(--ice); margin: 1.5rem 0 .75rem;
}
.hero__sub { font-size: var(--fs-body); color: var(--mist); max-width: 26em; margin: 0 0 2.5rem; }
.button {
  display: inline-block; padding: .8rem 1.6rem; border-radius: 2rem;
  border: 1px solid var(--ice); color: var(--ice);
  font-weight: 500; text-decoration: none; letter-spacing: .01em;
  transition: background-color .2s, color .2s;
}
.button:hover { background: var(--ice); color: var(--prussian); }

/* ---------- Sezioni ---------- */
.section { padding: var(--section-space) 0; }
.section + .section { padding-top: 0; }
.section__grid {
  display: grid; gap: 1.75rem 3rem;
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 56rem) {
  .section__grid { grid-template-columns: 15rem minmax(0, 1fr); }
}
.section h2, .contact h2 { font-size: var(--fs-h2); font-weight: 300; letter-spacing: -0.02em; }
.prose { max-width: var(--measure); }
.prose p { color: var(--mist); }
.prose .lead { font-size: var(--fs-lead); line-height: 1.5; color: var(--frost); font-weight: 340; }

/* Chi sono: testo + ritratto esagonale */
.about { display: grid; gap: 2.5rem; align-items: start; }
@media (min-width: 44rem) {
  .about { grid-template-columns: minmax(0, 1fr) 12rem; gap: 3rem; }
}
.portrait {
  width: 12rem; aspect-ratio: 0.866; margin: 0;
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
  background:
    radial-gradient(circle at 50% 35%, #1E3556 0%, #122239 70%);
  display: grid; place-items: center;
}
.portrait img { width: 100%; height: 100%; object-fit: cover; }
.portrait svg { width: 45%; color: rgba(155, 231, 238, .55); }

/* Competenze: griglia 2×2 con righe sottili */
.skills {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 0 3rem; grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 40rem) { .skills { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.skills li { border-top: 1px solid var(--line); padding: 1.5rem 0 2rem; }
.skills h3 { font-size: var(--fs-h3); font-weight: 480; margin-bottom: .5rem; }
.skills p { color: var(--mist); margin: 0; }

/* Passioni: icona lineare + testo */
.passions {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 2rem 3rem; grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 40rem) { .passions { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.passions li { display: grid; grid-template-columns: 2.75rem minmax(0, 1fr); gap: 1rem; align-items: start; }
.passions svg { width: 2.75rem; height: 2.75rem; color: var(--ice); }
.passions h3 { font-size: var(--fs-h3); font-weight: 480; margin: .45rem 0 .35rem; }
.passions p { color: var(--mist); margin: 0; }

/* ---------- Contatti ---------- */
.contact { background: var(--night); padding: var(--section-space) 0; border-top: 1px solid var(--line); }
.contact .prose p { color: var(--mist); }
.contact__mail {
  display: inline-block; margin: .5rem 0 2rem;
  font-size: clamp(1.3rem, 4.4vw, 2.25rem); font-weight: 280; letter-spacing: -0.01em;
  color: var(--ice); text-decoration: none; border-bottom: 1px solid rgba(155,231,238,.5); overflow-wrap: anywhere;
}
.contact__mail:hover { border-bottom-color: var(--ice); }
.contact__list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem 2rem; color: var(--mist); }

/* ---------- Footer ---------- */
.site-footer { background: var(--night); color: var(--mist); font-size: var(--fs-small); border-top: 1px solid var(--line); }
.site-footer .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 2rem; padding-top: 1.5rem; padding-bottom: 1.5rem; }
.site-footer .logo { width: 1.5rem; height: 1.5rem; }
.site-footer p { margin: 0; }
.site-footer .lang-switch { margin-left: auto; }
.site-footer a { color: var(--frost); }

/* ---------- Pagina privacy ---------- */
.page-legal .site-header { position: static; border-bottom: 1px solid var(--line); }
.legal { padding: 4rem 0 var(--section-space); }
.legal h1 { font-size: var(--fs-h2); font-weight: 300; margin-bottom: 1.5rem; }
.legal h2 { font-size: var(--fs-h3); font-weight: 480; margin: 2.5rem 0 .75rem; }
.legal .prose { max-width: var(--measure); }
.legal a { color: var(--ice); }

/* ---------- 404 ---------- */
.page-404 a { color: var(--ice); }
.notfound { min-height: 100svh; display: grid; place-content: center; gap: 2rem; padding: var(--gutter); }
.notfound .logo { width: 4.5rem; height: 4.5rem; }
.notfound__langs { display: grid; gap: 1.5rem; }
.notfound h1, .notfound h2 { font-size: var(--fs-h3); font-weight: 420; margin-bottom: .25rem; }
.notfound p { color: var(--mist); }

/* ---------- Mobile ---------- */
@media (max-width: 47.99rem) {
  .site-header .wrap { flex-wrap: wrap; gap: .75rem 1rem; }
  .site-nav { order: 3; width: 100%; }
  .site-nav ul { gap: 1.25rem; }
  .hero { align-items: flex-end; }
  .hero::after { background: linear-gradient(0deg, rgba(14,26,43,.96) 20%, rgba(14,26,43,.6) 48%, rgba(14,26,43,0) 72%); }
  .hero .wrap { padding-top: 55svh; padding-bottom: 3rem; }
  .hero__claim { margin-top: 1.1rem; }
  .hero__sub { margin-bottom: 2rem; }
  .site-footer .lang-switch { margin-left: 0; }
}

/* ---------- Movimento ridotto ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}