/* Pomice — sito. Palette "petrolio e vetro", font di sistema, niente risorse esterne. */
:root {
  color-scheme: dark;
  --bg: #0B1B1A;
  --bg-2: #0F2422;
  --paper: #F6F8F7;
  --ink: #E3ECEA;
  --muted: #9AB0AC;
  --line: rgba(246, 248, 247, 0.12);
  --glass: rgba(21, 48, 45, 0.55);
  --accent: #4CC3AE;
  --accent-ink: #0F2422;
  --accent-2: #8FE3D3;
  --warn: #F2B3A0;
  --radius: 22px;
  --radius-s: 12px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", sans-serif;
  --font-mark: ui-rounded, "SF Pro Rounded", system-ui, -apple-system, sans-serif;
  --step-0: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --step-1: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --step-2: clamp(1.5rem, 1.2rem + 1.4vw, 2.25rem);
  --step-3: clamp(2.25rem, 1.6rem + 3.2vw, 4.5rem);
  --max: 1180px;
}
@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #F1F5F4;
    --bg-2: #FFFFFF;
    --paper: #0F2422;
    --ink: #1B2A2A;
    --muted: #5E706E;
    --line: rgba(15, 36, 34, 0.12);
    --glass: rgba(255, 255, 255, 0.62);
    --accent: #0F7B6C;
    --accent-ink: #FFFFFF;
    --accent-2: #0F7B6C;
    --warn: #A33A3A;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font: 400 var(--step-0)/1.55 var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 700px at 85% -10%, rgba(76, 195, 174, 0.22), transparent 60%),
    radial-gradient(900px 600px at -10% 40%, rgba(15, 123, 108, 0.25), transparent 55%),
    linear-gradient(180deg, var(--bg-2), var(--bg) 40%);
  background-attachment: fixed;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-mark); font-weight: 700; letter-spacing: -0.02em; line-height: 1.08; margin: 0; text-wrap: balance; }
h2 { font-size: var(--step-2); }
h3 { font-size: var(--step-1); }
p { text-wrap: pretty; }
.fine { color: var(--muted); font-size: 0.9rem; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: 8px 12px; border-radius: 8px; }
.skip:focus { left: 8px; z-index: 100; }

/* ---- barra superiore ---- */
.top {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 16px;
  padding: 12px clamp(16px, 4vw, 40px);
  background: color-mix(in oklab, var(--bg-2) 70%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--line);
}
@supports not (backdrop-filter: blur(1px)) { .top { background: var(--bg-2); } }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.wordmark { font: 700 1.25rem var(--font-mark); letter-spacing: -0.02em; }
.nav { display: none; gap: 18px; margin-left: 14px; }
.nav a { text-decoration: none; color: var(--muted); font-size: 0.95rem; }
.nav a:hover, .nav a:focus-visible { color: var(--ink); }
.top-actions { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.lang { appearance: none; border: 1px solid var(--line); background: transparent; color: var(--ink); border-radius: 999px; padding: 6px 12px; font: 600 0.85rem var(--font); cursor: pointer; }
@media (min-width: 900px) { .nav { display: flex; } }

/* ---- pulsanti ---- */
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--glass); color: var(--ink); text-decoration: none; font-weight: 650;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}
.button:hover, .button:focus-visible { transform: translateY(-1px); border-color: var(--accent); }
.button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.button.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; box-shadow: 0 10px 30px -12px var(--accent); }
.button.ghost { background: transparent; }
.button.small { padding: 8px 14px; font-size: 0.9rem; }
.button.big { padding: 16px 28px; font-size: 1.1rem; }
.button[aria-disabled="true"] { opacity: 0.6; cursor: not-allowed; }

/* ---- hero ---- */
main { max-width: var(--max); margin: 0 auto; padding: 0 clamp(16px, 4vw, 40px); }
.hero { display: grid; gap: 40px; padding: clamp(40px, 8vw, 96px) 0 40px; align-items: center; }
@media (min-width: 960px) { .hero { grid-template-columns: 1fr 1.1fr; } }
.eyebrow { margin: 0 0 12px; color: var(--accent-2); font-weight: 650; font-size: 0.9rem; letter-spacing: 0.02em; text-transform: uppercase; }
h1 { font-size: var(--step-3); }
.lede { font-size: var(--step-1); color: var(--muted); margin: 20px 0 28px; max-width: 34em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.detected { margin: 12px 0 0; color: var(--muted); font-size: 0.92rem; }
.proof { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 8px 18px; color: var(--muted); font-size: 0.92rem; }
.proof li::before { content: "●"; color: var(--accent); margin-right: 8px; font-size: 0.7em; vertical-align: 1px; }

/* ---- demo "Erosione" ---- */
.demo-wrap { margin: 0; }
.demo {
  position: relative; aspect-ratio: 16 / 10; border-radius: var(--radius);
  overflow: hidden; border: 1px solid var(--line);
  background: #0a0f10; box-shadow: 0 40px 80px -40px rgba(0, 0, 0, 0.8);
  touch-action: pan-y; user-select: none; cursor: ew-resize;
}
.layer { position: absolute; inset: 0; display: flex; flex-direction: column; background: #0f0f0f; color: #eee; font-family: var(--font); }
.layer.dirty {
  -webkit-mask-image: linear-gradient(112deg, transparent calc(var(--p) * 140% - 40%), #000 calc(var(--p) * 140% - 12%));
  mask-image: linear-gradient(112deg, transparent calc(var(--p) * 140% - 40%), #000 calc(var(--p) * 140% - 12%));
}
.demo.reduced .layer.dirty { -webkit-mask-image: none; mask-image: none; opacity: calc(1 - var(--p)); transition: opacity 320ms ease; }
.grain { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.fakebar { display: flex; align-items: center; gap: 8px; padding: 8px 10px; background: #1a1a1a; border-bottom: 1px solid #2a2a2a; }
.fakebar .dot { width: 10px; height: 10px; border-radius: 50%; background: #3a3a3a; }
.fakebar .pill { height: 8px; width: 40%; border-radius: 4px; background: #2a2a2a; }
.fakebar .pill.short { width: 12%; }
.masthead { display: flex; justify-content: space-between; align-items: center; padding: 6px 12px; background: #3b1f1f; color: #f5c6c6; font-size: 11px; }
.masthead .x { opacity: 0.6; }
.fakepage { flex: 1; display: grid; grid-template-columns: 1fr 34%; gap: 10px; padding: 10px; min-height: 0; }
.player { position: relative; border-radius: 10px; overflow: hidden; background: #000; }
.video { position: absolute; inset: 0; background: radial-gradient(120% 100% at 30% 20%, #163a37, #050c0c 70%); overflow: hidden; }
.video.ad { background: radial-gradient(120% 100% at 60% 30%, #4a2a12, #150a05 70%); }
.blob { position: absolute; border-radius: 50%; filter: blur(18px); opacity: 0.85; animation: drift 12s ease-in-out infinite alternate; }
.blob.a { width: 55%; height: 55%; left: 10%; top: 15%; background: #2fa793; }
.blob.b { width: 40%; height: 40%; right: 8%; bottom: 8%; background: #8fe3d3; animation-duration: 15s; }
.blob.c { width: 30%; height: 30%; left: 45%; top: 45%; background: #0f7b6c; animation-duration: 9s; }
.video.ad .blob.a { background: #d97a3c; } .video.ad .blob.b { background: #f2c072; }
@keyframes drift { from { transform: translate(0, 0) scale(1); } to { transform: translate(8%, -6%) scale(1.15); } }
.quickbar { position: absolute; top: 8px; right: 8px; display: flex; gap: 6px; align-items: center; padding: 4px 8px; border-radius: 999px; background: rgba(15, 36, 34, 0.78); color: #F6F8F7; font: 600 10px/1 var(--font-mark); }
.quickbar .ring { width: 12px; height: 12px; border-radius: 50%; border: 2px solid #8FA3A0; }
.quickbar .ring.on { border-color: #4CC3AE; background: radial-gradient(#4CC3AE 45%, transparent 50%); }
.quickbar .cc { border: 1px solid #F6F8F7; border-radius: 3px; padding: 0 3px; }
.native { position: absolute; left: 0; right: 0; bottom: 0; display: flex; align-items: center; gap: 8px; padding: 8px 10px; background: linear-gradient(transparent, rgba(0, 0, 0, 0.75)); font-size: 10px; color: #fff; }
.native .play { width: 0; height: 0; border-left: 8px solid #fff; border-top: 5px solid transparent; border-bottom: 5px solid transparent; }
.native .track { flex: 1; height: 4px; border-radius: 2px; background: rgba(255, 255, 255, 0.35); }
.native .fill { display: block; width: 22%; height: 100%; border-radius: 2px; background: #fff; }
.ad-badge { position: absolute; left: 10px; bottom: 44px; padding: 3px 7px; border-radius: 3px; background: rgba(0, 0, 0, 0.7); color: #ffd28a; font-size: 10px; }
.ad-skip { position: absolute; right: 10px; bottom: 44px; padding: 5px 9px; background: rgba(0, 0, 0, 0.75); color: #fff; font-size: 10px; border: 1px solid rgba(255, 255, 255, 0.4); }
.chrome { position: absolute; left: 0; right: 0; bottom: 0; padding: 6px 8px 8px; background: linear-gradient(transparent, rgba(0, 0, 0, 0.8)); color: #fff; font-size: 10px; }
.chrome .progress { position: relative; display: block; height: 3px; background: rgba(255, 255, 255, 0.3); margin-bottom: 6px; }
.chrome .progress i { position: absolute; left: 0; top: 0; height: 100%; width: 46%; background: #ff0033; }
.chrome .progress .mark { width: 2%; background: #ffcc00; left: 30%; }
.chrome .progress .mark.m2 { left: 70%; }
.chrome .row { display: flex; align-items: center; gap: 8px; }
.chrome .grow { flex: 1; }
.side { display: flex; flex-direction: column; gap: 8px; min-height: 0; }
.card { display: grid; grid-template-columns: 44% 1fr; gap: 8px; align-items: center; }
.thumb { aspect-ratio: 16 / 9; border-radius: 6px; background: linear-gradient(135deg, #263c3a, #10201f); }
.thumb.t2 { background: linear-gradient(135deg, #3a2f26, #1c1512); } .thumb.t3 { background: linear-gradient(135deg, #22303f, #0f161d); } .thumb.t4 { background: linear-gradient(135deg, #2f2740, #14101c); }
.thumb.ad { background: linear-gradient(135deg, #7a3b1d, #d97a3c); } .thumb.ad2 { background: linear-gradient(135deg, #7a1d4b, #d93c8f); }
.lines { display: flex; flex-direction: column; gap: 5px; }
.lines span { display: block; height: 7px; border-radius: 4px; background: #2a2a2a; width: 90%; }
.lines span:last-child { width: 60%; }
.lines .tag { width: auto; height: auto; background: #f5c6c6; color: #3b1f1f; font-size: 9px; padding: 1px 5px; border-radius: 3px; align-self: flex-start; }
.card.sponsored .lines span:not(.tag) { background: #3b2a2a; }
.demo-controls { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; margin-top: 14px; font-size: 0.85rem; color: var(--muted); }
.scrub { appearance: none; width: 100%; height: 6px; border-radius: 3px; background: linear-gradient(90deg, #7a3b1d, var(--accent)); outline: none; }
.scrub::-webkit-slider-thumb { appearance: none; width: 26px; height: 26px; border-radius: 50%; background: var(--paper); border: 3px solid var(--accent); cursor: grab; box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4); }
.scrub::-moz-range-thumb { width: 22px; height: 22px; border-radius: 50%; background: var(--paper); border: 3px solid var(--accent); cursor: grab; }
.scrub:focus-visible::-webkit-slider-thumb { outline: 2px solid var(--accent); outline-offset: 2px; }
.demo-caption { margin-top: 8px; color: var(--muted); font-size: 0.85rem; }

/* ---- sezioni ---- */
.band { padding: clamp(40px, 7vw, 80px) 0; border-top: 1px solid var(--line); }
.band-lede { color: var(--muted); max-width: 52em; font-size: var(--step-1); margin: 14px 0 28px; }
.steps { list-style: none; counter-reset: s; padding: 0; margin: 28px 0 0; display: grid; gap: 18px; }
@media (min-width: 800px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { position: relative; padding: 22px 22px 22px 22px; border-radius: var(--radius); background: var(--glass); border: 1px solid var(--line); }
.steps .n { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font: 700 1rem var(--font-mark); margin-bottom: 12px; }
.steps p { color: var(--muted); margin: 8px 0 0; }

.features { padding: clamp(40px, 7vw, 80px) 0; border-top: 1px solid var(--line); }
.grid { display: grid; gap: 16px; margin-top: 28px; }
@media (min-width: 640px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .grid { grid-template-columns: repeat(4, 1fr); } .grid.three { grid-template-columns: repeat(3, 1fr); } }
.feat, .trust article { padding: 22px; border-radius: var(--radius); background: var(--glass); border: 1px solid var(--line); }
.feat .glyph { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: rgba(76, 195, 174, 0.15); color: var(--accent-2); font-size: 1.2rem; margin-bottom: 14px; }
.feat p, .trust p { color: var(--muted); margin: 8px 0 0; font-size: 0.98rem; }

/* comparsa allo scorrimento: timeline di scorrimento dove c'è, IntersectionObserver altrove */
.feat, .steps li, .trust article, .stores li { opacity: 0; transform: translateY(18px); }
.feat.in, .steps li.in, .trust article.in, .stores li.in { opacity: 1; transform: none; transition: opacity 500ms ease, transform 500ms ease; }
@supports (animation-timeline: view()) {
  .feat, .steps li, .trust article, .stores li { opacity: 1; transform: none; animation: rise linear both; animation-timeline: view(); animation-range: entry 0% entry 40%; }
  @keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
}
@media (prefers-reduced-motion: reduce) {
  .feat, .steps li, .trust article, .stores li { opacity: 1 !important; transform: none !important; animation: none !important; transition: none !important; }
  .blob { animation: none; }
}

.stores { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
@media (min-width: 720px) { .stores { grid-template-columns: repeat(2, 1fr); } }
.stores li { display: grid; grid-template-columns: 1fr auto; grid-template-areas: "name btn" "note btn"; gap: 2px 12px; align-items: center; padding: 16px 18px; border-radius: var(--radius); background: var(--glass); border: 1px solid var(--line); }
.stores li.detected { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.store-name { grid-area: name; font-weight: 700; font-family: var(--font-mark); }
.store-note { grid-area: note; color: var(--muted); font-size: 0.9rem; }
.stores .button { grid-area: btn; }

/* ---- prezzo ---- */
.price { padding: clamp(40px, 7vw, 80px) 0; border-top: 1px solid var(--line); }
.price-card { max-width: 720px; margin: 0 auto; padding: clamp(24px, 4vw, 40px); border-radius: 28px; background: linear-gradient(160deg, rgba(76, 195, 174, 0.18), rgba(15, 36, 34, 0.2)); border: 1px solid var(--line); text-align: center; }
.amount { margin: 0; display: flex; align-items: baseline; justify-content: center; gap: 12px; }
.amount .num { font: 800 clamp(3rem, 8vw, 5rem)/1 var(--font-mark); letter-spacing: -0.03em; }
.amount .per { color: var(--muted); font-size: 1.1rem; }
.price-list { list-style: none; padding: 0; margin: 22px auto 26px; text-align: left; max-width: 34em; display: grid; gap: 8px; color: var(--muted); }
.price-list li::before { content: "✓"; color: var(--accent); font-weight: 800; margin-right: 10px; }
.price .cta-row { justify-content: center; flex-direction: column; }

.trust .grid { margin-top: 24px; }
details { border-top: 1px solid var(--line); padding: 14px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font: 650 var(--step-1) var(--font-mark); list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--accent); font-weight: 800; }
details[open] summary::after { content: "−"; }
details p { color: var(--muted); margin: 10px 0 0; max-width: 60em; }

/* ---- pié di pagina ---- */
.foot { max-width: var(--max); margin: 40px auto 0; padding: 30px clamp(16px, 4vw, 40px) 60px; border-top: 1px solid var(--line); display: grid; gap: 14px; color: var(--muted); }
.foot-brand { display: flex; align-items: center; gap: 10px; font: 700 1.1rem var(--font-mark); color: var(--ink); }
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.foot nav a { color: var(--muted); }

/* ---- pagine di testo ---- */
.doc { max-width: 760px; margin: 0 auto; padding: clamp(32px, 6vw, 72px) clamp(16px, 4vw, 40px); }
.doc h1 { font-size: var(--step-2); margin-bottom: 8px; }
.doc h2 { font-size: var(--step-1); margin: 28px 0 8px; }
.doc p, .doc li { color: var(--muted); }
.doc .todo { background: rgba(242, 179, 160, 0.12); border: 1px dashed var(--warn); color: var(--warn); padding: 6px 10px; border-radius: 8px; display: inline-block; }
.code-box { font: 15px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; word-break: break-all; padding: 16px; border-radius: var(--radius-s); background: var(--glass); border: 1px solid var(--line); color: var(--ink); }