/* Kiuas · sito pubblico. Stile «Strumento» (design/tokens.md): grafite, Vermiglio, Ghiacciaio,
   Salvia, giallo «Segnale» solo per la sicurezza. Solo font di sistema, niente JS. */

:root {
  color-scheme: dark light;

  /* Base · scuro (riferimento) */
  --bg: #101112;
  --surface: #16181A;
  --surface2: #1E2023;
  --hairline: #2C2F33;
  --tick: #3A3D41;
  --text: #ECE8E1;
  --text2: #9A9690;
  --primary-bg: #ECE8E1;
  --primary-text: #0B0C0D;

  /* Fasi */
  --hot-ink: #FF5A1F;
  --hot-fill: #FF5A1F;
  --hot-track: #3A1A0D;
  --cold-ink: #4FD1E8;
  --cold-fill: #4FD1E8;
  --cold-track: #0E2A30;
  --rest-ink: #9FB3A6;
  --rest-fill: #9FB3A6;
  --rest-track: #1F2622;

  /* Sicurezza */
  --signal: #FFD23F;
  --on-signal: #14110F;
  --signal-soft-bg: transparent;
  --signal-soft-text: #FFD23F;

  --watch-bezel: #000;

  /* Tipografia */
  --f-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-cond: -apple-system, BlinkMacSystemFont, "SF Pro Display", system-ui, "Roboto Condensed", "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --f-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  /* Spaziature (scala a 4) e raggi */
  --s: 8px;
  --m: 12px;
  --l: 16px;
  --xl: 20px;
  --xxl: 28px;
  --xxxl: 40px;
  --r-button: 10px;
  --r-card: 10px;
  --r-chip: 6px;

  --gutter: max(16px, env(safe-area-inset-left));
  --max: 1120px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #F4F3F0;
    --surface: #FFFFFF;
    --surface2: #E8E7E3;
    --hairline: #D5D3CE;
    --tick: #C9C6C0;
    --text: #141516;
    --text2: #5B5955;
    --primary-bg: #141516;
    --primary-text: #F4F3F0;

    --hot-ink: #B83A0B;
    --hot-fill: #F05A22;
    --hot-track: #FBDCCD;
    --cold-ink: #0B6E80;
    --cold-fill: #36B4CC;
    --cold-track: #D2EEF3;
    --rest-ink: #4E6457;
    --rest-fill: #9FB3A6;
    --rest-track: #E3EAE5;

    --signal-soft-bg: #FFF0C2;
    --signal-soft-text: #5C4300;

    --watch-bezel: #141516;
  }
}

/* ---------- Base ---------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: 80px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--f-sans);
  font-size: 1.0625rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--cold-ink);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: 100%;
  max-width: calc(var(--max) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  z-index: 10;
  background: var(--primary-bg);
  color: var(--primary-text);
  padding: var(--s) var(--l);
  border-radius: var(--r-chip);
  font-weight: 600;
  text-decoration: none;
}
.skip:focus { top: var(--s); }

h1, h2, h3 {
  font-family: var(--f-cond);
  font-stretch: condensed;
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: 0.005em;
  margin: 0;
  text-wrap: balance;
  overflow-wrap: break-word;
  -webkit-hyphens: auto;
  hyphens: auto;
}

h1 {
  font-size: clamp(2.6rem, 8.5vw, 5.4rem);
  text-transform: uppercase;
}

h2 {
  font-size: clamp(1.9rem, 5vw, 2.9rem);
  text-transform: uppercase;
}

h3 {
  font-size: 1.45rem;
  font-weight: 600;
}

p { margin: 0 0 var(--l); }

.eyebrow,
.f-label,
.stat-label,
.meta,
.gallery-title,
figcaption {
  font-family: var(--f-mono);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text2);
}

.eyebrow { margin: 0 0 var(--m); }

.lead,
.section-lead {
  color: var(--text2);
  font-size: 1.15rem;
  max-width: 40em;
}

.i-hot { color: var(--hot-ink); }
.i-cold { color: var(--cold-ink); }
.i-rest { color: var(--rest-ink); }
.i-signal { color: var(--signal-soft-text); }

/* ---------- Testata ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--hairline);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--l);
  min-height: 60px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--f-cond);
  font-stretch: condensed;
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.brand img { border-radius: 8px; }

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  display: inline-block;
  padding: 10px 12px;
  min-height: 44px;
  text-decoration: none;
  font-family: var(--f-mono);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text2);
  border-radius: var(--r-chip);
}
.nav-links a:hover { color: var(--text); background: var(--surface2); }
.nav-links a[aria-current="page"] { color: var(--text); box-shadow: inset 0 -2px 0 var(--hot-fill); border-radius: 0; }

/* ---------- Hero ---------- */

.hero {
  display: grid;
  gap: var(--xxl);
  align-items: center;
  padding-block: clamp(40px, 8vw, 96px) clamp(28px, 5vw, 56px);
}

@media (min-width: 860px) {
  .hero { grid-template-columns: 1.15fr 0.85fr; }
}

.hero h1 { margin-bottom: var(--xl); }
.hero .lead { font-size: clamp(1.1rem, 2.2vw, 1.3rem); }

.phases { font-size: 0.85rem; }

.cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--m);
  margin-top: var(--xxl);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 var(--xxl);
  border-radius: var(--r-button);
  font-weight: 600;
  text-decoration: none;
}
.btn-primary { background: var(--primary-bg); color: var(--primary-text); }

.soon {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  min-height: 54px;
  padding: 0 var(--xl);
  border: 1px solid var(--hairline);
  background: var(--surface);
  border-radius: var(--r-button);
  font-family: var(--f-mono);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.soon-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--hot-fill);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--hot-fill) 60%, transparent);
  animation: glow 2.4s ease-out infinite;
}

@keyframes glow {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--hot-fill) 55%, transparent); }
  70%, 100% { box-shadow: 0 0 0 10px color-mix(in srgb, var(--hot-fill) 0%, transparent); }
}

.req { margin: 0; color: var(--text2); font-size: 0.9rem; }

.hero-visual { display: flex; justify-content: center; }

/* Quadrante */
.dial { width: min(100%, 420px); height: auto; overflow: visible; }
.dial .ticks line { stroke: var(--tick); stroke-width: 3; stroke-linecap: butt; }
.dial .track { fill: none; stroke: var(--hot-track); stroke-width: 12; }
.dial .arc {
  fill: none;
  stroke: var(--hot-fill);
  stroke-width: 12;
  stroke-linecap: round;
  stroke-dasharray: 62 100;
  animation: draw 1.6s cubic-bezier(.2,.7,.2,1) both 0.2s;
}
.dial .hand { stroke: var(--text); stroke-width: 6; stroke-linecap: round; }
.dial .d-time {
  fill: var(--text);
  font-family: var(--f-cond);
  font-stretch: condensed;
  font-weight: 600;
  font-size: 104px;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.dial .d-label {
  fill: var(--text2);
  font-family: var(--f-mono);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.12em;
}

@keyframes draw { from { stroke-dasharray: 0 100; } }

/* Righello del protocollo */
.ruler {
  display: flex;
  gap: 3px;
  height: 8px;
  margin-block: var(--s);
}
.ruler .seg { border-radius: 1px; }
.ruler .hot { flex: 12; background: var(--hot-fill); }
.ruler .cold { flex: 2; background: var(--cold-fill); }
.ruler .rest { flex: 15; background: var(--rest-track); }
.ruler .seg:nth-child(n+4) { opacity: 0.55; }

/* ---------- Sezioni ---------- */

.section { padding-block: clamp(56px, 9vw, 112px) 0; }
.section h2 { margin-bottom: var(--l); }
.section-lead { margin-bottom: var(--xxl); }

/* Funzioni */
.features {
  list-style: none;
  margin: var(--xxl) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr));
}

.feature {
  --ink: var(--text);
  --fill: var(--text2);
  position: relative;
  padding: var(--xl) var(--xl) var(--s);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  overflow: hidden;
}
.feature::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--fill);
}
.feature.t-hot { --ink: var(--hot-ink); --fill: var(--hot-fill); }
.feature.t-cold { --ink: var(--cold-ink); --fill: var(--cold-fill); }
.feature.t-rest { --ink: var(--rest-ink); --fill: var(--rest-fill); }
.feature.t-signal { --ink: var(--signal-soft-text); --fill: var(--signal); }

.f-label { color: var(--ink); margin-bottom: var(--s); }
.f-num { color: var(--text2); margin-right: 6px; }
.feature h3 { margin-bottom: var(--s); }
.feature p:last-child { color: var(--text2); }
.feature strong { color: var(--text); font-weight: 600; }

/* Schermate */
.gallery-group + .gallery-group { margin-top: var(--xxl); }
.gallery-title { margin: 0 auto var(--m); font-size: 0.78rem; font-weight: 600; font-stretch: normal; }

.gallery {
  list-style: none;
  margin: 0 auto;
  display: flex;
  gap: var(--l);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: var(--gutter);
  padding-bottom: var(--l);
  scrollbar-width: thin;
  scrollbar-color: var(--hairline) transparent;
}
.gallery > li { flex: 0 0 auto; scroll-snap-align: start; }

.shot { margin: 0; }
.shot img {
  background: var(--watch-bezel);
  border: 1px solid var(--hairline);
}
.shot-watch img {
  width: 176px;
  padding: 16px;
  border-radius: 44px;
}
.shot-iphone img {
  width: 220px;
  padding: 6px;
  border-radius: 36px;
  aspect-ratio: 780 / 1688;
  object-fit: cover;
}
.shot-iphone img { border-radius: 36px; }
figcaption { margin-top: var(--m); max-width: 220px; font-size: 0.72rem; }
.shot-watch figcaption { max-width: 176px; }

@media (min-width: 720px) {
  .shot-watch img { width: 200px; }
  .shot-watch figcaption { max-width: 200px; }
  .shot-iphone img { width: 240px; }
  .shot-iphone figcaption { max-width: 240px; }
}

/* Sicurezza */
.safety {
  display: grid;
  gap: var(--xxxl);
  align-items: center;
}
@media (min-width: 900px) {
  .safety { grid-template-columns: 1.2fr 0.8fr; }
}

.levels { margin: 0 0 var(--xl); display: grid; gap: var(--m); }
.level {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: var(--l);
  align-items: start;
  padding: var(--l);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
}
.level dd { margin: 0; color: var(--text2); }
.level dd p { margin: 0; }
.level dd strong { color: var(--text); }

@media (max-width: 480px) {
  .level { grid-template-columns: 1fr; gap: var(--s); }
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: var(--r-chip);
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.tag-note { border: 1.5px solid var(--signal); color: var(--signal-soft-text); background: var(--signal-soft-bg); }
.tag-stop { background: var(--signal); color: var(--on-signal); border: 1.5px solid var(--signal); }

.ticks-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--s);
}
.ticks-list li {
  position: relative;
  padding-left: 22px;
  color: var(--text2);
}
.ticks-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.55em;
  width: 10px;
  height: 3px;
  background: var(--text2);
  border-radius: 1px;
}
.ticks-list li p { margin: 0; }
.ticks-list strong { color: var(--text); font-weight: 600; }

.safety-shots {
  display: flex;
  gap: var(--l);
  justify-content: center;
  flex-wrap: wrap;
}
.safety-shots .shot-watch img { width: 168px; }
@media (min-width: 900px) {
  .safety-shots .shot-watch img { width: 200px; }
}

/* Avvertenza medica */
.callout {
  padding: clamp(20px, 4vw, 40px);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  background: var(--surface);
}
.callout h2 { font-size: clamp(1.6rem, 4vw, 2.2rem); }
.callout ul { margin: 0; padding-left: 1.2em; color: var(--text2); display: grid; gap: var(--s); }
.callout li p { margin: 0; }
.callout li::marker { color: var(--text2); }

/* Privacy in breve: celle come le statistiche del riepilogo */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  margin: var(--xl) 0 var(--xxl);
  max-width: 720px;
}
.stat { padding: var(--l) var(--l) var(--m); }
.stat + .stat { border-left: 1px solid var(--hairline); }
.stat-label { margin: 0 0 4px; font-size: 0.72rem; }
.stat-value {
  margin: 0;
  font-family: var(--f-cond);
  font-stretch: condensed;
  font-weight: 600;
  font-size: clamp(2.2rem, 7vw, 3rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat:nth-child(1) .stat-value { color: var(--hot-ink); }
.stat:nth-child(2) .stat-value { color: var(--cold-ink); }
.stat:nth-child(3) .stat-value { color: var(--rest-ink); }

@media (max-width: 400px) {
  .stat { padding: var(--m) 10px; }
  .stat-label { font-size: 0.66rem; letter-spacing: 0.06em; }
}

.more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--hot-fill);
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

/* ---------- Pagine di testo ---------- */

.doc-head { padding-block: clamp(40px, 7vw, 80px) var(--l); }
.doc-head h1 { font-size: clamp(2.4rem, 7vw, 4.2rem); margin-bottom: var(--l); }
.meta span { margin-right: 6px; }
.meta time { color: var(--text); }

.prose {
  max-width: calc(46rem + 2 * var(--gutter));
  margin-inline: 0;
  padding-block: var(--xxl) 0;
}
@media (min-width: 1160px) {
  .prose { margin-inline: auto; max-width: calc(var(--max) + 2 * var(--gutter)); }
  .prose > * { max-width: 46rem; }
}

.prose h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin: var(--xxxl) 0 var(--m);
  padding-top: var(--l);
  border-top: 1px solid var(--hairline);
}
.prose h3 {
  font-size: 1.3rem;
  margin: var(--xxl) 0 var(--s);
}
.prose p, .prose li { color: var(--text2); }
.prose strong { color: var(--text); font-weight: 600; }
.prose ul, .prose ol { padding-left: 1.25em; margin: 0 0 var(--l); }
.prose li { margin-bottom: 6px; }
.prose li::marker { color: var(--text2); }
.prose a {
  color: var(--text);
  text-decoration-color: var(--hot-fill);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
}
.prose code {
  font-family: var(--f-mono);
  font-size: 0.88em;
  background: var(--surface2);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--text);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 var(--xl);
  font-size: 0.95rem;
  display: block;
  overflow-x: auto;
}
.prose th, .prose td {
  text-align: left;
  vertical-align: top;
  padding: 10px 12px 10px 0;
  border-bottom: 1px solid var(--hairline);
}
.prose th {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text2);
}
.prose td { color: var(--text2); }
.prose td:first-child { color: var(--text); font-weight: 600; white-space: nowrap; }

/* FAQ */
.prose details {
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  margin: 0 0 10px;
  background: var(--bg);
}
.prose details[open] { background: var(--surface); }
.prose summary {
  cursor: pointer;
  list-style: none;
  padding: var(--l) 48px var(--l) var(--l);
  font-weight: 600;
  color: var(--text);
  position: relative;
  min-height: 44px;
}
.prose summary::-webkit-details-marker { display: none; }
.prose summary::after {
  content: "";
  position: absolute;
  right: 20px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--text2);
  border-bottom: 2px solid var(--text2);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.2s;
}
.prose details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.prose details > :not(summary) { padding-inline: var(--l); }
.prose details > :last-child { padding-bottom: var(--s); }

.contact-card {
  margin: var(--xxl) 0 0;
  padding: var(--xl);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  background: var(--surface);
}
.contact-card p:last-child { margin-bottom: 0; }

/* ---------- Piede ---------- */

.site-footer {
  margin-top: clamp(64px, 10vw, 128px);
  border-top: 1px solid var(--hairline);
  padding-block: var(--xxxl) max(var(--xxxl), env(safe-area-inset-bottom));
}

.footer-inner {
  display: grid;
  gap: var(--xxl);
}
@media (min-width: 860px) {
  .footer-inner { grid-template-columns: 1.2fr 1fr 1fr; align-items: start; }
  .copyright { grid-column: 1 / -1; }
}

.footer-brand { display: flex; gap: var(--m); align-items: center; }
.footer-brand img { border-radius: 10px; }
.footer-name {
  margin: 0;
  font-family: var(--f-cond);
  font-stretch: condensed;
  font-weight: 700;
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.footer-note { margin: 0; color: var(--text2); font-size: 0.92rem; }

.footer-links { display: flex; flex-direction: column; gap: 2px; }
.footer-links a,
.lang a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--text2);
  text-decoration: none;
  overflow-wrap: anywhere;
}
.footer-links a:hover,
.lang a:hover { color: var(--text); text-decoration: underline; }

.lang ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0 var(--l);
}
.lang a[aria-current="true"] { color: var(--text); box-shadow: inset 0 -2px 0 var(--hot-fill); }

.copyright { margin: 0; color: var(--text2); font-size: 0.85rem; }

/* ---------- Movimento ridotto ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}