/*
  Differen — static bilingual preview, V2
  Design system: editorial, photographic, listed-ready.
  No external fonts/imports — system font stacks only. No web fonts, no analytics.
*/

:root {
  --paper: #f6f7f9;
  --paper-raised: #ffffff;
  --ink: #101b35;
  --ink-rgb: 16, 27, 53;
  --ink-soft: #536078;
  --hairline: #dce1ea;
  --accent: #174f8f;
  --accent-rgb: 23, 79, 143;
  --accent-soft: #eaf2fa;
  --gold: #b48a43;
  --focus: #1257c9;
  --radius: 2px;
  --radius-lg: 6px;
  --max: 74rem;
  --serif: ui-serif, Georgia, "Iowan Old Style", "Palatino Linotype", "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.6em;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.1rem, 4vw + 1rem, 3.4rem); }
h2 { font-size: clamp(1.5rem, 2vw + 1rem, 2.1rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1.1em; color: var(--ink-soft); max-width: 62ch; }

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}
a:hover { color: var(--gold); }

img, svg { max-width: 100%; display: block; }

.container {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--ink);
  color: #fff;
  padding: 0.75rem 1.25rem;
  z-index: 100;
  border-radius: var(--radius);
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* Focus visibility (accessible microinteractions, not decorative) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

/* ---------- Header / nav ---------- */
.site-header {
  border-bottom: 1px solid var(--hairline);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 20;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
  gap: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.brand:hover { color: var(--ink); }
.brand-logo { width: 142px; height: auto; flex: none; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 1.4rem;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
.main-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  padding-block: 0.25rem;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] {
  border-bottom-color: var(--accent);
  color: var(--accent);
}

.lang-switch {
  display: flex;
  gap: 0.4rem;
  font-size: 0.85rem;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  padding: 0.2rem;
}
.lang-switch a {
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  text-decoration: none;
  color: var(--ink-soft);
}
.lang-switch a[aria-current="true"] {
  background: var(--ink);
  color: #fff;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 0.4rem 0.6rem;
  font: inherit;
  cursor: pointer;
}

@media (max-width: 780px) {
  .nav-toggle { display: inline-flex; align-items: center; gap: 0.4rem; }
  .main-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: var(--paper-raised);
    border-bottom: 1px solid var(--hairline);
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 1.5rem 1.5rem;
    gap: 1rem;
    display: none;
  }
  .main-nav.is-open { display: flex; }
  .main-nav ul { flex-direction: column; gap: 0.9rem; }
}

/* ---------- Photographic hero (home) ---------- */
.hero-photo {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--hairline);
  padding-block: clamp(3.5rem, 9vw, 8rem) clamp(3rem, 6vw, 5rem);
  color: #fff;
  isolation: isolate;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image: linear-gradient(160deg, rgba(var(--ink-rgb), .78) 10%, rgba(var(--ink-rgb), .55) 45%, rgba(8, 14, 28, .82) 100%), url("../img/hero-circuit.jpg");
  background-size: cover;
  background-position: center;
  transform: scale(1.06);
  animation: heroDrift 46s ease-in-out infinite alternate;
}
@keyframes heroDrift {
  from { transform: scale(1.06) translate3d(0,0,0); }
  to   { transform: scale(1.14) translate3d(-1%, -1%, 0); }
}
.hero-photo .eyebrow { color: #bcd2ef; }
.hero-photo h1 { color: #fff; }
.hero-photo .lede { color: #dbe3f0; }
.hero-grid { display:grid; grid-template-columns:minmax(0,1.08fr) minmax(330px,.92fr); gap:clamp(2rem,5vw,5rem); align-items:center; }
.hero h1 { font-size:clamp(2.6rem,4.2vw,4.2rem); max-width:14ch; letter-spacing:-.045em; }
.hero-actions { display:flex; align-items:center; gap:1.4rem; flex-wrap:wrap; margin-top:1.8rem; }
.hero-photo .text-link { color: #fff; }
.hero-photo .text-link:hover { color: var(--gold); }
.text-link { font-weight:650; text-decoration:none; }

.capital-map { position:relative; display:block; aspect-ratio:1; max-width:520px; justify-self:end; width:100%; color:var(--ink); text-decoration:none; isolation:isolate; }
.capital-map svg { position:absolute; inset:4%; width:92%; height:92%; z-index:-1; animation:orbit 24s linear infinite; }
.capital-map svg circle,.capital-map svg path { fill:none; stroke:rgba(255,255,255,.45); stroke-width:1.2; stroke-dasharray:3 8; }
.capital-core,.capital-node { position:absolute; display:flex; flex-direction:column; justify-content:center; border:1px solid rgba(255,255,255,.28); background:rgba(255,255,255,.94); box-shadow:0 24px 60px rgba(2,6,16,.35); backdrop-filter:blur(8px); }
.capital-core { inset:34%; border-radius:50%; align-items:center; text-align:center; background:var(--ink); color:#fff; border-color: rgba(255,255,255,.35); }
.capital-core strong { font-family:var(--sans); letter-spacing:.12em; font-size:clamp(.85rem,1.6vw,1.2rem); }
.capital-core small { color:#b8c8df; margin-top:.25rem; }
.capital-node { width:34%; min-height:22%; padding:1rem; font-family:var(--serif); font-weight:600; line-height:1.2; color: var(--ink); transition:transform .25s ease,border-color .25s ease; }
.capital-node i { font-family:var(--sans); font-size:.65rem; color:var(--gold); font-style:normal; letter-spacing:.14em; margin-bottom:.45rem; }
.capital-map:hover .capital-node, .capital-map:focus-within .capital-node { border-color:var(--accent); }
.capital-node.node-1 { left:4%; top:8%; border-radius:42% 58% 46% 54%; }
.capital-node.node-2 { right:3%; top:12%; border-radius:58% 42% 55% 45%; }
.capital-node.node-3 { left:5%; bottom:8%; border-radius:55% 45% 58% 42%; }
.capital-node.node-4 { right:2%; bottom:7%; border-radius:46% 54% 42% 58%; }
@keyframes orbit { to { transform:rotate(360deg); } }
.eyebrow {
  display: block;
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 0.9rem;
}
.hero .lede, .hero-photo .lede {
  font-size: 1.15rem;
  max-width: 46rem;
}

/* Plain (non-photographic) inner-page hero, still on brand paper */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(3rem, 6vw, 6rem) clamp(2rem, 4vw, 4rem);
  border-bottom: 1px solid var(--hairline);
  background:
    radial-gradient(circle at 82% 20%, rgba(40, 127, 181, .12), transparent 28rem),
    linear-gradient(135deg, #fff 0%, #f5f8fc 72%);
}

section {
  padding-block: clamp(2.5rem, 5vw, 4.5rem);
  border-bottom: 1px solid var(--hairline);
}
section:last-of-type { border-bottom: none; }

.section-head {
  display: flex;
  gap: 1.5rem;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.section-num {
  font-family: var(--serif);
  font-style: italic;
  color: var(--gold);
  font-size: 1rem;
}

.grid {
  display: grid;
  gap: 1.75rem;
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.card {
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: 0 12px 32px rgba(16,27,53,.045);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform:translateY(-4px); box-shadow:0 20px 45px rgba(16,27,53,.09); border-color:#b9c7da; }
.card h3 { margin-bottom: 0.5rem; }
.card p { margin-bottom: 0; }

.tag {
  display: inline-block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  border: 1px solid var(--hairline);
  border-radius: 999px;
  padding: 0.15rem 0.65rem;
  margin-bottom: 0.75rem;
}

/* ---------- Editorial platform image cards ---------- */
.platform-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 0;
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 32px rgba(16,27,53,.06);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.platform-card:hover { transform: translateY(-5px); box-shadow: 0 24px 50px rgba(16,27,53,.14); border-color: #b9c7da; }
.platform-card .platform-media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--ink);
}
.platform-card .platform-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.platform-card:hover .platform-media img { transform: scale(1.05); }
.platform-card .platform-body { padding: 1.5rem 1.5rem 1.7rem; }
.platform-card .tag { margin-bottom: 0.6rem; }
.platform-card h3 { margin-bottom: 0.4rem; }
.platform-card p { margin-bottom: 0; font-size: .96rem; }

/* ---------- Split hero/visual (inner pages) ---------- */
.split-hero .container {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, .95fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.split-visual {
  position: relative;
  aspect-ratio: 4 / 5;
  max-height: min(540px, 60svh);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 30px 70px rgba(16,27,53,.18);
  border: 1px solid rgba(var(--ink-rgb), .08);
}
.split-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.split-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, transparent 55%, rgba(var(--ink-rgb), .35) 100%);
  pointer-events: none;
}
.split-visual figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: .9rem 1.1rem;
  font-size: .78rem;
  letter-spacing: .03em;
  color: #fff;
  background: linear-gradient(0deg, rgba(var(--ink-rgb), .82), transparent);
}
/* Duotone treatment for the two illustrative (non-photographic) source assets,
   so their raw stock colour palette matches the site's ink/gold system. */
.split-visual.duo img { filter: grayscale(1) contrast(1.08) brightness(.92); }
.split-visual.duo::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(150deg, rgba(var(--ink-rgb), .82), rgba(var(--accent-rgb), .55));
  mix-blend-mode: multiply;
}
.split-visual.duo::after { background: linear-gradient(200deg, transparent 40%, rgba(var(--ink-rgb), .45) 100%); }

@media (max-width: 860px) {
  .split-hero .container { grid-template-columns: 1fr; }
  .split-visual { aspect-ratio: 16 / 10; max-width: 620px; }
}

/* ---------- Platform diagram (geometric, accessible) ---------- */
.platform-diagram {
  display: grid;
  grid-template-columns: minmax(220px, 380px) 1fr;
  gap: 2.5rem;
  align-items: start;
}
@media (max-width: 820px) {
  .platform-diagram { grid-template-columns: 1fr; }
}
.diagram-figure {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  background:
    linear-gradient(rgba(255,255,255,.93), rgba(255,255,255,.93)),
    url("../img/hero-blockchain.jpg");
  background-size: cover;
  background-position: center;
  border: 1px solid var(--hairline);
}
.diagram-figure svg { width: 100%; height: auto; }

.diagram-quad {
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
  transform-origin: center;
  transform-box: fill-box;
}
.diagram-quad rect,
.diagram-quad path,
.diagram-quad polygon {
  fill: var(--accent-soft);
  stroke: var(--accent);
  stroke-width: 1;
  transition: fill 0.2s ease, stroke-width 0.2s ease;
}
.diagram-quad text {
  font-family: var(--sans);
  letter-spacing: 0.01em;
  fill: var(--ink);
}
.diagram-quad:hover,
.diagram-quad:focus-visible {
  transform: scale(1.035);
  outline: none;
}
.diagram-quad:hover rect,
.diagram-quad:focus-visible rect,
.diagram-quad:hover path,
.diagram-quad:focus-visible path,
.diagram-quad:hover polygon,
.diagram-quad:focus-visible polygon,
.diagram-quad.is-active rect,
.diagram-quad.is-active path,
.diagram-quad.is-active polygon {
  fill: var(--accent);
  stroke-width: 1.5;
}
.diagram-quad:hover text,
.diagram-quad:focus-visible text,
.diagram-quad.is-active text {
  fill: #fff;
}
.diagram-quad:focus-visible rect,
.diagram-quad:focus-visible path,
.diagram-quad:focus-visible polygon {
  stroke: var(--focus);
}

.platform-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}
.platform-list li {
  display: flex;
  gap: 1rem;
  align-items: stretch;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: var(--paper-raised);
  padding: 0.75rem;
  overflow: hidden;
}
.platform-list .platform-thumb {
  flex: none;
  width: 108px;
  border-radius: var(--radius);
  overflow: hidden;
}
.platform-list .platform-thumb img { width: 100%; height: 100%; object-fit: cover; }
.platform-list .platform-copy { padding-block: 0.15rem; }
.platform-list h3 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.platform-list p { margin-bottom: 0; font-size: 0.95rem; }
.platform-list li.is-current {
  border-color: var(--accent);
  box-shadow: inset 3px 0 0 var(--accent);
}
@media (max-width: 480px) {
  .platform-list li { flex-direction: column; }
  .platform-list .platform-thumb { width: 100%; aspect-ratio: 16/9; }
}

@media (prefers-reduced-motion: reduce) {
  .diagram-quad,
  .diagram-quad rect,
  .diagram-quad path,
  .diagram-quad text,
  .card,
  .platform-card,
  .platform-card .platform-media img {
    transition: none !important;
  }
  .capital-map svg { animation:none !important; }
  .hero-media { animation: none !important; transform: scale(1); }
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns:1fr; }
  .capital-map { justify-self:center; max-width:460px; }
}

@media (max-width: 480px) {
  .brand-logo { width:118px; }
  .hero h1, .hero-photo h1 { font-size:clamp(2.65rem,14vw,4rem); }
  .capital-map { width:calc(100% + 1rem); margin-inline:-.5rem; }
  .capital-node { font-size:.78rem; padding:.65rem; }
  .capital-core small { display:none; }
}

/* ---------- Notices / demo banners ---------- */
.notice {
  border: 1px solid var(--gold);
  background: #fbf6ea;
  color: var(--ink);
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.92rem;
  margin-bottom: 2rem;
}
.notice strong { color: var(--ink); }

/* ---------- Forms ---------- */
.form-grid {
  display: grid;
  gap: 1.1rem;
  max-width: 34rem;
}
label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}
input, textarea {
  width: 100%;
  font: inherit;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--paper-raised);
  color: var(--ink);
}
textarea { min-height: 8rem; resize: vertical; }

button.btn, a.btn {
  display: inline-block;
  font: inherit;
  font-weight: 600;
  background: var(--ink);
  color: #fff;
  border: 1px solid var(--ink);
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  width: fit-content;
}
button.btn:hover, a.btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.hero-photo .btn { background:#fff; color:var(--ink); border-color:#fff; }
.hero-photo .btn:hover { background:var(--gold); border-color:var(--gold); color:#fff; }

.form-status {
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  font-size: 0.92rem;
}
.form-status[data-state="success"] {
  border: 1px solid var(--accent);
  background: var(--accent-soft);
}
.form-status[hidden] { display: none; }
.form-status[data-state="pending"] {
  border: 1px solid var(--hairline);
}
.form-status[data-state="error"] {
  border: 1px solid #b3261e;
  background: #fdecea;
  color: #7a1a13;
}
.form-hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--hairline);
  padding-block: 2.5rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.site-footer nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
  margin: 0;
  padding: 0;
}
.site-footer a { color: var(--ink-soft); }

.list-plain {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}
.list-plain li {
  padding-left: 1.1rem;
  position: relative;
}
.list-plain li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--gold);
}

.definition-list dt {
  font-weight: 600;
  margin-top: 1.1rem;
}
.definition-list dd {
  margin: 0.2rem 0 0;
  color: var(--ink-soft);
}

/* ---------- V3: evoluzione conservativa del linguaggio Differen ---------- */
:root {
  --paper: #f3f6f1;
  --paper-raised: #ffffff;
  --ink: #102b24;
  --ink-rgb: 16, 43, 36;
  --ink-soft: #52655f;
  --hairline: #d9e3dc;
  --accent: #16765a;
  --accent-rgb: 22, 118, 90;
  --accent-soft: #e3f1e9;
  --gold: #b79b59;
  --focus: #12664f;
  --radius: 4px;
  --radius-lg: 18px;
}

body {
  background:
    radial-gradient(circle at 90% 8%, rgba(75, 151, 111, .08), transparent 24rem),
    var(--paper);
}

.site-header {
  background: rgba(243, 246, 241, .9);
  backdrop-filter: blur(18px) saturate(125%);
  -webkit-backdrop-filter: blur(18px) saturate(125%);
}

.main-nav a:hover,
.main-nav a[aria-current="page"] { color: var(--accent); border-bottom-color: var(--accent); }
.lang-switch a[aria-current="true"] { background: var(--ink); }

.hero-photo {
  min-height: min(850px, 88vh);
  display: grid;
  align-items: center;
  padding-block: clamp(5rem, 10vw, 9rem);
}

.hero-media {
  background-image:
    linear-gradient(105deg, rgba(4, 35, 25, .91) 0%, rgba(7, 54, 38, .71) 43%, rgba(10, 52, 37, .24) 72%, rgba(5, 26, 20, .38) 100%),
    url("../img/hero-differen-green.jpg");
  background-position: center 42%;
  transform: scale(1.03);
  animation: heroDrift 34s cubic-bezier(.45,0,.55,1) infinite alternate;
}

.hero-photo::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 35%;
  z-index: -1;
  background: linear-gradient(to top, rgba(4, 31, 22, .46), transparent);
  pointer-events: none;
}

.hero-photo .eyebrow { color: #bfe6d3; }
.hero-photo .lede { color: #e1eee8; }
.hero-photo h1 { font-size: clamp(3.2rem, 6vw, 6.8rem); max-width: 9ch; letter-spacing: -.045em; }
.hero-photo .btn { color: var(--ink); border-radius: 999px; padding-inline: 1.7rem; }
.hero-photo .btn:hover { background: #d8c17d; border-color: #d8c17d; color: var(--ink); }

.capital-map { max-width: 540px; }
.capital-map::before {
  content: "";
  position: absolute;
  inset: 12%;
  z-index: -2;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(118, 198, 156, .24), rgba(38, 108, 77, .06) 58%, transparent 72%);
  filter: blur(8px);
}
.capital-map svg circle,
.capital-map svg path { stroke: rgba(214, 240, 226, .52); }
.capital-core { background: rgba(9, 46, 34, .93); border-color: rgba(255,255,255,.34); }
.capital-core small { color: #bee0cf; }
.capital-node {
  background: rgba(248, 252, 249, .92);
  border-color: rgba(215, 235, 224, .7);
  box-shadow: 0 24px 70px rgba(2, 30, 20, .28);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.capital-node i { color: #8d743d; }
.capital-map:hover .capital-node,
.capital-map:focus-within .capital-node { border-color: #82bca3; }

section { position: relative; }
section:nth-of-type(even):not(.hero-photo):not(.hero):not(.value-flow):not(.method-stage):not(.platform-showcase):not(.investor-gateway) { background: rgba(255,255,255,.48); }
.section-num { color: var(--accent); }
.section-head > a { color: var(--accent); font-weight: 650; }

.platform-card {
  border: 0;
  border-radius: 20px;
  box-shadow: 0 18px 50px rgba(16, 55, 42, .09);
}
.platform-card .platform-media { aspect-ratio: 5 / 4; }
.platform-card .platform-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 45, 32, .38), transparent 58%);
  pointer-events: none;
}
.platform-card:hover { transform: translateY(-8px); box-shadow: 0 28px 70px rgba(16, 55, 42, .16); border-color: transparent; }
.platform-card:hover .platform-media img { transform: scale(1.065); }
.platform-card .tag { color: var(--accent); border-color: #bad6c7; }

.hero {
  background:
    radial-gradient(circle at 82% 15%, rgba(52, 143, 102, .18), transparent 24rem),
    linear-gradient(135deg, #ffffff 0%, #eaf2ec 76%);
}
.split-visual { border-radius: 22px; box-shadow: 0 30px 75px rgba(16, 55, 42, .19); }
.split-visual::after { background: linear-gradient(200deg, transparent 48%, rgba(8, 52, 35, .48) 100%); }
.split-visual.duo::before { background: linear-gradient(150deg, rgba(7, 44, 31, .82), rgba(27, 126, 87, .46)); }

.card { border-radius: 14px; box-shadow: 0 14px 38px rgba(16, 55, 42, .055); }
.card:hover { border-color: #9dc8b2; box-shadow: 0 22px 50px rgba(16, 55, 42, .12); }
.notice { background: #f4f0df; border-color: #c7af70; }
.list-plain li::before { background: var(--accent); }

.diagram-figure {
  background: linear-gradient(rgba(246,250,247,.91), rgba(246,250,247,.91)), url("../img/hero-blockchain.jpg");
  border-radius: 18px;
}
.diagram-quad rect,
.diagram-quad path,
.diagram-quad polygon { fill: var(--accent-soft); stroke: var(--accent); }
.platform-list li.is-current { border-color: var(--accent); box-shadow: inset 3px 0 0 var(--accent); }

button.btn, a.btn { background: var(--ink); border-color: var(--ink); border-radius: 999px; }
button.btn:hover, a.btn:hover { background: var(--accent); border-color: var(--accent); }
.form-status[data-state="success"] { background: var(--accent-soft); border-color: var(--accent); }
.site-footer { background: #0d2b22; color: #c9d8d1; border-top: 0; }
.site-footer p, .site-footer a { color: #c9d8d1; }

/* Progressive enhancement: reveal only after JS marks the page ready. */
.motion-ready [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .78s ease, transform .78s cubic-bezier(.2,.7,.2,1);
}
.motion-ready [data-reveal].is-visible { opacity: 1; transform: none; }
.motion-ready [data-reveal-delay="1"] { transition-delay: .08s; }
.motion-ready [data-reveal-delay="2"] { transition-delay: .16s; }
.motion-ready [data-reveal-delay="3"] { transition-delay: .24s; }

@media (max-width: 860px) {
  .hero-photo { min-height: auto; }
  .hero-media { background-position: 58% center; }
  .capital-map { max-width: 470px; }
}

@media (max-width: 480px) {
  .hero-photo { padding-block: 4.5rem 3.5rem; }
  .hero-photo h1 { font-size: clamp(2.8rem, 15vw, 4.2rem); }
  .hero-media {
    background-image:
      linear-gradient(115deg, rgba(4, 35, 25, .93) 0%, rgba(7, 54, 38, .76) 58%, rgba(5, 26, 20, .48) 100%),
      url("../img/hero-differen-green.jpg");
    background-position: 61% center;
  }
  .platform-card { border-radius: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .motion-ready [data-reveal] { opacity: 1 !important; transform: none !important; transition: none !important; }
  .hero-media { animation: none !important; transform: scale(1.03); }
}

/* V4 homepage: a rigorous strategic path replaces the organic platform nodes. */
.hero-photo h1 { max-width: 11ch; }
.strategy-panel {
  position: relative;
  width: min(100%, 500px);
  justify-self: end;
  padding: clamp(1.5rem, 3vw, 2.4rem);
  color: #f4faf6;
  background: linear-gradient(145deg, rgba(6, 43, 31, .88), rgba(12, 66, 47, .68));
  border: 1px solid rgba(220, 241, 230, .28);
  border-radius: 4px;
  box-shadow: 0 32px 80px rgba(2, 24, 17, .32);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  overflow: hidden;
}
.strategy-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, #c7ad68 0 33%, #75b997 33% 67%, #dcece3 67%);
}
.strategy-panel::after {
  content: "";
  position: absolute;
  width: 210px;
  height: 210px;
  right: -105px;
  bottom: -125px;
  border: 1px solid rgba(219, 239, 228, .18);
  transform: rotate(45deg);
}
.strategy-kicker {
  display: block;
  margin-bottom: 1.1rem;
  color: #bddfcd;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.strategy-path { list-style: none; margin: 0; padding: 0; }
.strategy-path li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: .15rem 1rem;
  padding: 1rem 0;
  border-top: 1px solid rgba(222, 241, 231, .18);
}
.strategy-path li > span {
  grid-row: 1 / 3;
  color: #cdb875;
  font-family: var(--serif);
  font-size: 1.35rem;
  line-height: 1;
}
.strategy-path strong { font-size: 1.08rem; color: #fff; }
.strategy-path small { color: #bfd3c8; font-size: .86rem; }
.strategy-panel > a {
  display: flex;
  justify-content: space-between;
  margin-top: 1rem;
  color: #fff;
  font-weight: 650;
  text-decoration: none;
}
.strategy-panel > a:hover { color: #dccb98; }

.philosophy-intro {
  max-width: 940px;
  margin: 0 0 clamp(2rem, 4vw, 3.5rem);
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(1.45rem, 2.5vw, 2.25rem);
  line-height: 1.35;
}
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid #9fc4b1;
  border-bottom: 1px solid #9fc4b1;
}
.philosophy-grid article { padding: 1.8rem clamp(1rem, 2.5vw, 2rem) 2rem; }
.philosophy-grid article + article { border-left: 1px solid #9fc4b1; }
.philosophy-grid article > span {
  display: block;
  margin-bottom: 2.2rem;
  color: var(--accent);
  font-size: .7rem;
  font-weight: 750;
  letter-spacing: .14em;
}
.philosophy-grid h3 { margin-bottom: .65rem; }
.philosophy-grid p { margin: 0; }

@media (max-width: 860px) {
  .strategy-panel { justify-self: start; }
  .philosophy-grid { grid-template-columns: 1fr; }
  .philosophy-grid article + article { border-left: 0; border-top: 1px solid #9fc4b1; }
  .philosophy-grid article > span { margin-bottom: 1rem; }
}


/* ---------- V5 homepage: dynamic, geometric, distinctly Differen ---------- */
.home-v5 { overflow: clip; }
.home-v5 section { border-bottom: 0; }
.hero-v5 {
  min-height: min(590px, 66svh);
  padding-block: clamp(3.5rem, 5.5vw, 5rem) clamp(2.75rem, 4.5vw, 4rem);
}
.hero-v5 .hero-media {
  background-image:
    linear-gradient(108deg, rgba(3, 31, 22, .95) 0%, rgba(5, 54, 38, .80) 44%, rgba(4, 44, 31, .38) 72%, rgba(2, 25, 18, .72) 100%),
    url("../img/hero-differen-green.jpg");
}
.hero-grid-v5 {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(420px, 1.05fr);
  gap: clamp(2.5rem, 7vw, 7rem);
  align-items: center;
}
.hero-v5 h1 { max-width: 10ch; font-size: clamp(3rem, 5.4vw, 5.6rem); }
.hero-v5 h1 em { color: #d6c27f; font-weight: 500; }
.hero-index {
  position: absolute;
  right: clamp(1.5rem, 4vw, 4rem);
  bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  color: rgba(255,255,255,.72);
  font-size: .68rem;
  letter-spacing: .12em;
}
.hero-index i { width: 5rem; height: 1px; background: rgba(255,255,255,.42); }

/* The four modules follow an ellipse via JS; no organic blob geometry. */
.orbit-system {
  --tilt-x: 0deg;
  --tilt-y: 0deg;
  position: relative;
  width: min(100%, 580px);
  aspect-ratio: 1.12;
  justify-self: end;
  transform: perspective(1100px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y));
  transform-style: preserve-3d;
  transition: transform .7s cubic-bezier(.2,.8,.2,1);
}
.orbit-system::before {
  content: "";
  position: absolute;
  inset: 13% 16%;
  background: radial-gradient(circle, rgba(85, 181, 133, .28), rgba(15, 84, 58, .08) 58%, transparent 72%);
  filter: blur(18px);
}
.orbit-track {
  position: absolute;
  inset: 14% 8%;
  border: 1px solid rgba(210, 239, 224, .35);
  border-radius: 50%;
  transform: rotate(-14deg);
}
.orbit-track::after {
  content: "";
  position: absolute;
  width: 8px; height: 8px;
  left: 12%; top: 8%;
  border-radius: 50%;
  background: #d6c27f;
  box-shadow: 0 0 20px rgba(214,194,127,.8);
}
.orbit-track-b { inset: 24% 18%; transform: rotate(23deg); border-style: dashed; opacity: .65; }
.orbit-track-a { animation: orbitRing 28s linear infinite; }
.orbit-track-b { animation: orbitRingBack 34s linear infinite; }
@keyframes orbitRing { to { transform: rotate(346deg); } }
@keyframes orbitRingBack { to { transform: rotate(-337deg); } }

.orbit-core {
  position: absolute;
  left: 50%; top: 50%;
  width: clamp(150px, 31%, 190px);
  aspect-ratio: 1;
  translate: -50% -50%;
  display: grid;
  place-content: center;
  text-align: center;
  border: 1px solid rgba(229, 244, 236, .42);
  background: rgba(5, 42, 30, .84);
  clip-path: polygon(50% 0, 91% 24%, 91% 76%, 50% 100%, 9% 76%, 9% 24%);
  box-shadow: 0 24px 80px rgba(1,18,12,.36);
  backdrop-filter: blur(12px);
}
.orbit-core::after {
  content: "";
  position: absolute;
  inset: 9%;
  border: 1px solid rgba(214,194,127,.36);
  clip-path: inherit;
}
.orbit-core span { color: #fff; font-weight: 800; letter-spacing: .19em; font-size: clamp(.8rem, 1.4vw, 1.1rem); }
.orbit-core small { margin-top: .4rem; color: #bddbcb; font-size: .61rem; letter-spacing: .07em; }

.orbit-node {
  --orbit-x: 0px;
  --orbit-y: 0px;
  position: absolute;
  left: 50%; top: 50%;
  width: clamp(126px, 29%, 166px);
  min-height: 72px;
  padding: .9rem 1rem;
  transform: translate(calc(-50% + var(--orbit-x)), calc(-50% + var(--orbit-y)));
  display: grid;
  align-content: center;
  background: rgba(245, 250, 247, .94);
  color: var(--ink);
  border: 1px solid rgba(219, 238, 228, .75);
  box-shadow: 0 18px 45px rgba(1, 24, 16, .24);
  text-decoration: none;
  font-family: var(--serif);
  font-weight: 650;
  line-height: 1.08;
  backdrop-filter: blur(14px);
  transition: background .3s ease, color .3s ease, box-shadow .3s ease;
}
.orbit-node::after {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1px solid rgba(22,118,90,.17);
  pointer-events: none;
}
.orbit-node span { font-family: var(--sans); color: #8f7435; font-size: .62rem; letter-spacing: .16em; margin-bottom: .32rem; }
.orbit-node:hover, .orbit-node:focus-visible { background: #d6c27f; color: #09291f; box-shadow: 0 24px 60px rgba(1,24,16,.4); }
.orbit-node.node-a { --orbit-x: -170px; --orbit-y: -105px; }
.orbit-node.node-b { --orbit-x: 170px; --orbit-y: -105px; }
.orbit-node.node-c { --orbit-x: 170px; --orbit-y: 105px; }
.orbit-node.node-d { --orbit-x: -170px; --orbit-y: 105px; }

.principle-marquee {
  overflow: hidden;
  background: #d6c27f;
  color: #0b2c22;
  padding: .9rem 0;
  border: 0;
}
.principle-marquee > div {
  width: max-content;
  display: flex;
  align-items: center;
  gap: 1.8rem;
  font-size: .76rem;
  font-weight: 750;
  letter-spacing: .13em;
  text-transform: uppercase;
  animation: marqueeFlow 32s linear infinite;
}
.principle-marquee b { font-size: .55rem; color: #16765a; }
@keyframes marqueeFlow { to { transform: translateX(-40%); } }

.method-stage { padding-block: clamp(5rem, 9vw, 9rem); background: #edf3ee; }
.method-layout { display: grid; grid-template-columns: minmax(300px,.88fr) minmax(0,1.12fr); gap: clamp(2.5rem,6vw,5rem); align-items: start; }
.method-layout > * { min-width: 0; }
.method-heading { position: sticky; top: 8rem; }
.method-heading h2, .section-head-v5 h2, .value-layout h2, .investor-card-v5 h2 {
  font-size: clamp(2.3rem,3.8vw,4rem);
  letter-spacing: -.035em;
  overflow-wrap: break-word;
}
.method-heading h2 { font-size: clamp(2.2rem,3.2vw,3.3rem); overflow-wrap: break-word; }
.method-heading p { font-size: 1.08rem; }
.method-console { display: grid; grid-template-columns: 1fr 1fr; min-height: 500px; background: #0b3025; color: #fff; border-radius: 22px; overflow: hidden; box-shadow: 0 28px 80px rgba(7,48,36,.18); }
.method-visual { position: relative; display: flex; flex-direction: column; justify-content: flex-end; padding: clamp(2rem,4vw,3.5rem); overflow: hidden; }
.method-visual > span { color: #d6c27f; font-size: .72rem; letter-spacing: .18em; }
.method-visual > strong { position: relative; z-index: 2; margin: .7rem 0; font-family: var(--serif); font-size: clamp(1.45rem,1.9vw,1.75rem); overflow-wrap: break-word; }
.method-visual > p { position: relative; z-index: 2; color: #c9ded3; margin: 0; }
.method-radar { position: absolute; width: 360px; aspect-ratio: 1; left: -90px; top: -80px; border-radius: 50%; border: 1px solid rgba(214,194,127,.22); animation: radarSpin 22s linear infinite; }
.method-radar::before, .method-radar::after, .method-radar i { content:""; position:absolute; inset:17%; border-radius:50%; border:1px solid rgba(214,194,127,.18); }
.method-radar::after { inset:35%; }
.method-radar i:first-child { inset:50% 0 auto 0; border:0; border-top:1px solid rgba(214,194,127,.22); border-radius:0; }
.method-radar i:nth-child(2) { inset:0 auto 0 50%; border:0; border-left:1px solid rgba(214,194,127,.22); border-radius:0; }
.method-radar i:last-child { inset:50% auto auto 50%; width:44%; height:1px; border:0; border-top:1px solid #d6c27f; border-radius:0; transform-origin:left; transform:rotate(-28deg); }
@keyframes radarSpin { to { transform: rotate(360deg); } }
.method-steps { display: grid; background: #f7faf8; }
.method-step { position: relative; overflow: hidden; isolation: isolate; display: grid; grid-template-columns: 2.3rem 1fr; gap: .2rem 1rem; align-content: center; text-align: left; padding: 1.5rem; border: 0; border-bottom: 1px solid #dbe6df; background: transparent; color: var(--ink); cursor: pointer; font: inherit; transition: padding-left .3s ease; }
.method-step:last-child { border-bottom: 0; }
.method-step::before { content: ""; position: absolute; inset: 0; z-index: -2; background-size: cover; background-position: center; opacity: .25; filter: saturate(.55); transition: opacity .35s ease, transform .7s ease; }
.method-step::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(to right, #f7faf8 30%, rgba(247,250,248,.55)); transition: background .35s ease; }
.method-step[data-index="01"]::before { background-image: url("../img/hero-circuit.jpg"); }
.method-step[data-index="02"]::before { background-image: url("../img/hero-genova.jpg"); }
.method-step[data-index="03"]::before { background-image: url("../img/hero-blockchain.jpg"); }
.method-step > span { grid-row: 1/3; color: var(--accent); font-size: .68rem; letter-spacing: .12em; }
.method-step strong { font-family: var(--serif); font-size: 1.3rem; }
.method-step small { color: var(--ink-soft); }
.method-step:hover, .method-step.is-active { padding-left: 2rem; }
.method-step:hover::before, .method-step.is-active::before { opacity: .42; transform: scale(1.05); }
.method-step:hover::after, .method-step.is-active::after { background: linear-gradient(to right, #dfece4 30%, rgba(223,236,228,.42)); }
@media (prefers-reduced-motion: reduce) {
  .method-step::before { transition: none; }
  .method-step:hover::before, .method-step.is-active::before { transform: none; }
}

.platform-showcase { padding-block: clamp(5rem,9vw,9rem); background: #fff; }
.section-head-v5 { display:grid; grid-template-columns:1.1fr .65fr; gap:clamp(2rem,8vw,8rem); align-items:end; margin-bottom:3rem; }
.section-head-v5 p { font-size:1.08rem; }
.section-head-v5.section-head-sub { align-items:start; margin-top:clamp(3.5rem,6vw,5rem); }
.section-head-v5.section-head-sub h3 { font-family:var(--serif); font-size:clamp(1.55rem,2.3vw,2.1rem); line-height:1.12; letter-spacing:-.02em; margin:0; }
.section-head-v5.section-head-sub p { margin:0; }
.platform-mosaic { display:grid; grid-template-columns:repeat(2,1fr); grid-auto-rows:clamp(250px,25vw,360px); gap:1rem; }
.platform-tile { position:relative; overflow:hidden; border-radius:18px; color:#fff; text-decoration:none; isolation:isolate; }
.platform-tile::after { content:""; position:absolute; inset:0; z-index:-1; background:linear-gradient(to top,rgba(3,29,21,.9),rgba(3,29,21,.08) 62%); }
.platform-tile img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:-2; transition:transform .9s cubic-bezier(.2,.8,.2,1), filter .5s ease; }
.platform-tile > span { position:absolute; inset:auto 0 0; padding:clamp(1.5rem,3vw,2.6rem); display:grid; grid-template-columns:2rem 1fr; gap:.2rem 1rem; align-items:end; }
.platform-tile i { grid-row:1/3; color:#d6c27f; font-style:normal; font-size:.7rem; letter-spacing:.12em; align-self:start; }
.platform-tile strong { font-family:var(--serif); font-size:clamp(1.45rem,2vw,2.1rem); line-height:1.05; }
.platform-tile small { color:#d8e7df; }
.platform-tile:hover img, .platform-tile:focus-visible img { transform:scale(1.07); filter:saturate(1.12); }
.platform-tile:hover { color:#fff; }
.platform-tile:nth-child(2), .platform-tile:nth-child(3) { min-height: 290px; }

.value-flow { padding-block:clamp(5rem,9vw,9rem); background:#092c22; color:#fff; }
.value-layout { display:grid; grid-template-columns:.8fr 1.2fr; gap:clamp(3rem,8vw,8rem); }
.value-layout h2 { color:#fff; }
.value-layout .section-num { color:#d6c27f; }
.value-line { position:relative; display:grid; grid-template-columns:repeat(3,1fr); gap:1.2rem; padding-top:2.6rem; }
.value-line::before { content:""; position:absolute; top:1rem; left:0; right:0; height:1px; background:rgba(255,255,255,.2); }
.value-line > i { position:absolute; top:.72rem; left:0; width:8px; height:8px; border-radius:50%; background:#d6c27f; box-shadow:0 0 0 6px rgba(214,194,127,.13); transition:left 1.4s cubic-bezier(.2,.8,.2,1); }
.value-line.is-live > i { left:calc(100% - 8px); }
.value-line article > span { color:#d6c27f; font-size:.68rem; letter-spacing:.14em; }
.value-line h3 { color:#fff; margin:.8rem 0 .45rem; }
.value-line p { color:#bcd1c7; font-size:.9rem; }

.investor-gateway { padding-block:clamp(4rem,7vw,7rem); background:#d6c27f; }
.investor-card-v5 { display:grid; grid-template-columns:1fr auto; gap:3rem; align-items:end; }
.investor-card-v5 h2 { max-width:12ch; color:#092c22; }
.investor-card-v5 p { color:#30493f; }
.investor-card-v5 .section-num { color:#36584b; }
.investor-actions { display:grid; gap:1rem; min-width:220px; }
.investor-actions a:not(.btn) { color:#092c22; font-weight:700; text-decoration:none; }

.motion-ready .home-v5 [data-reveal] { transform:translateY(30px); opacity:0; }
.motion-ready .home-v5 [data-reveal].is-visible { transform:none; opacity:1; }

@media (max-width: 900px) {
  .hero-v5 { min-height:auto; }
  .hero-grid-v5, .method-layout, .section-head-v5, .value-layout { grid-template-columns:1fr; }
  .orbit-system { justify-self:center; max-width:560px; }
  .method-heading { position:static; }
  .investor-card-v5 { grid-template-columns:1fr; }
}
@media (max-width: 600px) {
  .hero-v5 { padding-block:4.5rem 3.5rem; }
  .hero-grid-v5 { gap:2rem; }
  .hero-v5 h1 { font-size:clamp(2.9rem,14vw,4.7rem); }
  .orbit-system { aspect-ratio:.92; width:calc(100% + 1rem); margin-inline:-.5rem; }
  .orbit-core { width:132px; }
  .orbit-node { width:118px; min-height:64px; padding:.7rem; font-size:.82rem; }
  .orbit-node.node-a { --orbit-x:-108px; --orbit-y:-105px; }
  .orbit-node.node-b { --orbit-x:108px; --orbit-y:-105px; }
  .orbit-node.node-c { --orbit-x:108px; --orbit-y:105px; }
  .orbit-node.node-d { --orbit-x:-108px; --orbit-y:105px; }
  .method-console { grid-template-columns:1fr; min-height:0; }
  .method-visual { min-height:330px; }
  .platform-mosaic { grid-template-columns:1fr; grid-auto-rows:360px; }
  .platform-tile:nth-child(n) { min-height:0; }
  .value-line { grid-template-columns:1fr; gap:2rem; padding-left:2rem; padding-top:0; }
  .value-line::before { top:0; bottom:0; left:.2rem; right:auto; width:1px; height:auto; }
  .value-line > i { top:0; left:calc(.2rem - 3px); transition:top 1.4s cubic-bezier(.2,.8,.2,1); }
  .value-line.is-live > i { left:calc(.2rem - 3px); top:calc(100% - 8px); }
  .hero-index { display:none; }
}
@media (prefers-reduced-motion: reduce) {
  .orbit-track, .principle-marquee > div, .method-radar { animation:none !important; }
  .orbit-system, .orbit-node, .platform-tile img, .value-line > i { transition:none !important; }
}

/* Loghi società del gruppo */
.company-logo { display:block; width:auto; height:auto; margin:0 0 1.15rem; }
.card .company-logo { margin:.2rem 0 1rem; }

/* Indice di pagina sticky (Piattaforme) */
.page-index { position:sticky; top:0; z-index:60; background:rgba(243,246,241,.92); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px); border-bottom:1px solid var(--hairline); }
.page-index ul { display:flex; gap:1.6rem; list-style:none; margin:0; padding:.65rem 0; overflow-x:auto; }
.page-index a { font-size:.82rem; letter-spacing:.04em; text-transform:uppercase; color:var(--ink-soft); text-decoration:none; white-space:nowrap; }
.page-index a:hover, .page-index a:focus { color:var(--accent); }
.page-index .idx-page { color:var(--accent); font-weight:600; }
main section[id], main li[id] { scroll-margin-top:3.8rem; }