@font-face { font-family: "EB Garamond"; src: url("fonts/fino-garamond-500.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "EB Garamond"; src: url("fonts/fino-garamond-italic-400.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("fonts/IBMPlexSans-Regular-Latin1.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("fonts/IBMPlexSans-Medium-Latin1.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("fonts/IBMPlexMono-Medium-Latin1.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }

/* FINO · pagina in arrivo · v1
   Layout: una schermata. A sinistra la tesi (stato, titolo, una frase, contatto); a destra il diagramma
   alla Byrne del simbolo, cerchio e quadrato di pari area. Sotto gli 860px, una colonna. */
:root {
  --carta: #f2f3ee; --carta-2: #e2e4de; --inchiostro: #1d2230; --inchiostro-2: #2d3442; --grigio: #5e676d; --filo: #d9dcd4; --blu: #1e4fa3; --blu-2: #193f84; --rosso: #c63a2b; --giallo: #e9b21b; --su-colore: #f2f3ee; --fuoco: #1e4fa3;
  --serif: "EB Garamond", Garamond, "Times New Roman", serif;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) { --carta: #0e1a32; --carta-2: #16243f; --inchiostro: #f2f3ee; --inchiostro-2: #d9dcd4; --grigio: #a3abb1; --filo: #2a3956; --blu: #5b8de6; --blu-2: #7aa3ec; --rosso: #e45a45; --giallo: #e9b21b; --su-colore: #0e1a32; --fuoco: #5b8de6; color-scheme: dark; } }
:root[data-theme="dark"] { --carta: #0e1a32; --carta-2: #16243f; --inchiostro: #f2f3ee; --inchiostro-2: #d9dcd4; --grigio: #a3abb1; --filo: #2a3956; --blu: #5b8de6; --blu-2: #7aa3ec; --rosso: #e45a45; --giallo: #e9b21b; --su-colore: #0e1a32; --fuoco: #5b8de6; color-scheme: dark; }

html { height: 100%; box-sizing: border-box; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
*, *::before, *::after { box-sizing: inherit; }
body {
  margin: 0; min-height: 100%; display: flex; flex-direction: column;
  background: var(--carta); color: var(--inchiostro);
  font: 400 17px/1.6 var(--sans);
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  font-kerning: normal; font-variant-ligatures: common-ligatures;
}
.page {
  flex: 1 0 auto; width: 100%; max-width: 1280px; margin-inline: auto;
  display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto 1fr auto;
  padding-inline: clamp(0px, 6vw - 24px, 48px);
}
a { color: inherit; }
a:focus-visible { outline: 2px solid var(--fuoco); outline-offset: 2px; }

/* barra */
.top { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 24px; }
.brand { display: block; border-radius: 2px; }
.logo { display: block; height: 36px; width: auto; }
.lg-b { fill: var(--blu); } .lg-r { fill: var(--rosso); } .lg-t { fill: var(--inchiostro); }
.lang { display: flex; gap: 8px; }
.lang a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 6px;
  font: 500 15px/1 var(--sans); letter-spacing: .04em; text-decoration: none; color: var(--grigio);
  border-bottom: 3px solid transparent; padding-top: 3px;
}
.lang a:hover { color: var(--inchiostro); }
.lang a[aria-current] { color: var(--inchiostro); border-bottom-color: var(--giallo); }

/* tesi */
.hero {
  display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(40px, 6vw, 96px); align-items: center; padding-block: clamp(24px, 7vh, 80px);
}
.copy { container-type: inline-size; min-width: 0; display: flex; flex-direction: column; align-items: flex-start; gap: 24px; }
.copy > * { margin: 0; }
.status {
  display: inline-flex; align-items: center; gap: 10px;
  font: 500 13px/1.5 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--grigio);
}
.status::before { content: ""; width: 8px; height: 8px; background: var(--giallo); flex: none; }
h1 {
  font-family: var(--serif); font-weight: 500; line-height: .98; letter-spacing: -.012em;
  font-size: clamp(38px, 5.6vw, 88px); font-size: clamp(38px, 13.6cqi, 88px);
  color: var(--inchiostro); text-wrap: balance;
}
h1.h1-long { font-size: clamp(34px, 5.2vw, 88px); font-size: clamp(34px, 13.1cqi, 88px); }
.lead {
  font: 400 clamp(18px, 16.6px + .36vw, 21px)/1.5 var(--sans); color: var(--inchiostro-2);
  max-width: 31em; text-wrap: balance;
}
h1 + .lead { margin-top: 4px; }
.lead-alt { font-size: 17px; color: var(--grigio); margin-top: -12px; }
.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; margin-top: 16px; }
.btn {
  display: inline-flex; align-items: center; min-height: 48px; padding: 12px 24px;
  background: var(--blu); color: var(--su-colore); border-radius: 4px;
  font: 500 16px/1.4 var(--sans); text-decoration: none;
}
.btn:hover { background: var(--blu-2); }
.mail {
  font: 500 17px/1.4 var(--sans); color: var(--inchiostro); overflow-wrap: anywhere;
  text-decoration: underline; text-decoration-color: var(--giallo);
  text-decoration-thickness: 3px; text-underline-offset: 7px;
}
.mail:hover { color: var(--blu); }
.note { font: 400 14px/1.5 var(--sans); color: var(--grigio); max-width: 46em; }

/* diagramma */
.figure { margin: 0; min-width: 0; display: grid; justify-items: center; gap: 20px; }
.diagram { display: block; width: 100%; max-width: 460px; height: auto; overflow: visible; }
.caps { fill: var(--blu); }
.cors { fill: var(--rosso); }
.ring { fill: none; stroke: var(--blu); stroke-width: 1.4; }
.sq { fill: none; stroke: var(--rosso); stroke-width: 1.4; transform-box: fill-box; transform-origin: center; }
.rad { stroke: var(--giallo); stroke-width: 1.8; }
.pt { fill: var(--inchiostro); }
.lbl { fill: var(--inchiostro); font-family: var(--serif); font-style: italic; font-weight: 400; font-size: 17px; }
.diagram-off { max-width: 400px; }
figcaption { display: grid; justify-items: center; gap: 10px; text-align: center; }
.eq { display: inline-flex; align-items: center; gap: 12px; }
.glyph { display: block; }
.eqsign { font: 500 24px/1 var(--serif); color: var(--inchiostro-2); }
.cap-text { font: italic 400 19px/1.4 var(--serif); color: var(--inchiostro-2); }

/* piede */
.foot {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 24px;
  padding-block: 18px 28px; border-top: 1px solid var(--filo);
  font: 400 14px/1.5 var(--sans); color: var(--grigio);
}

@media (max-width: 860px) {
  .hero { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .diagram { max-width: min(320px, 80vw); }
  .diagram-off { max-width: min(280px, 72vw); }
}
@media (max-width: 480px) {
  .logo { height: 28px; }
  .top { padding-block: 16px; gap: 12px; }
  .copy { gap: 20px; }
}
@media (max-width: 360px) {
  .logo { height: 24px; }
  .lang { gap: 2px; }
  .lang a { padding: 3px 5px 0; font-size: 14px; }
}

/* movimento: un solo momento, il quadrato entra nel cerchio */
@media (prefers-reduced-motion: no-preference) {
  .copy > *, figcaption { animation: rise .5s cubic-bezier(.2, .7, .2, 1) both; }
  .copy > :nth-child(2) { animation-delay: .05s; }
  .copy > :nth-child(3) { animation-delay: .1s; }
  .copy > :nth-child(4) { animation-delay: .15s; }
  .copy > :nth-child(5) { animation-delay: .2s; }
  figcaption { animation-delay: .3s; }
  .diagram:not(.diagram-off) .sq { animation: settle .9s cubic-bezier(.25, .8, .25, 1) .25s both; }
  .diagram .fills { animation: fade .45s ease-out 1.05s both; }
  .diagram .rad { stroke-dasharray: 1; animation: draw .45s cubic-bezier(.4, 0, .2, 1) 1.3s both; }
  .diagram:not(.diagram-off) .pt, .diagram .lbl { animation: fade .3s ease-out 1.3s both; }
}
@keyframes rise { from { opacity: .35; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes settle { from { transform: rotate(-45deg); } to { transform: none; } }
@keyframes draw { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }