/* Tech Boutique — design system del prototipo Academy (brief del 18/10/2026) */
:root {
  --bg: #FFFFFF; --bg-alt: #F5F6F7; --surface: #ECEEF0;
  --ink: #22252A; --ink-2: #687079; --line: #DEE2E6; --accent: #526B7A; --accent-ink: #3E5361;
  --radius: 4px; --wrap: 1120px;
  --sans: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 17px; line-height: 1.55; }
a { color: var(--accent-ink); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
img { max-width: 100%; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.mono, .label { font-family: var(--mono); font-size: 12.5px; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-2); }

/* barra staging */
.staging { background: var(--ink); color: #fff; font-family: var(--mono); font-size: 12px; text-align: center; padding: 6px 12px; }

/* intestazione */
header.top { border-bottom: 1px solid var(--line); background: var(--bg); position: sticky; top: 0; z-index: 5; }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { font-weight: 600; text-decoration: none; color: var(--ink); letter-spacing: -.01em; }
.brand span { font-family: var(--mono); font-size: 11px; color: var(--ink-2); margin-left: 8px; text-transform: uppercase; letter-spacing: .06em; }
nav.main { display: flex; gap: 22px; font-size: 15px; }
nav.main a { color: var(--ink); text-decoration: none; }
nav.main a[aria-current="page"], nav.main a:hover { color: var(--accent-ink); text-decoration: underline; }
@media (max-width: 760px) { nav.main { gap: 14px; font-size: 14px; } nav.main .hide-m { display: none; } }

/* sezioni */
section { padding: 72px 0; }
section.alt { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
h1, h2, h3 { letter-spacing: -.02em; line-height: 1.12; margin: 0 0 .5em; font-weight: 600; }
h1 { font-size: clamp(36px, 6vw, 64px); }
h2 { font-size: clamp(26px, 3.4vw, 38px); }
h3 { font-size: 21px; letter-spacing: -.01em; }
.lead { font-size: clamp(18px, 2vw, 21px); color: var(--ink-2); max-width: 680px; }
.hero { padding: 88px 0 64px; }
.hero .kicker { margin-bottom: 18px; }

/* pulsanti */
.btn { display: inline-block; padding: 13px 22px; border-radius: var(--radius); border: 1px solid var(--ink); background: var(--ink); color: #fff;
  font: 500 16px var(--sans); text-decoration: none; cursor: pointer; transition: background .15s, color .15s; min-height: 48px; }
.btn:hover { background: var(--accent-ink); border-color: var(--accent-ink); }
.btn.sec { background: transparent; color: var(--ink); }
.btn.sec:hover { background: var(--surface); }
.btns { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* griglie e schede */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.grid3 > * { background: var(--bg); padding: 32px 28px; }
@media (max-width: 860px) { .grid3 { grid-template-columns: 1fr; } }
.path .num { font-family: var(--mono); color: var(--accent); font-size: 13px; }
.path h3 { margin-top: 14px; }
.path p { color: var(--ink-2); margin: 0 0 20px; }
.path .meta { font-family: var(--mono); font-size: 12.5px; color: var(--ink-2); border-top: 1px solid var(--line); padding-top: 14px; margin-top: auto; }
.path { display: flex; flex-direction: column; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; gap: 10px; background: var(--bg);
  transition: border-color .15s; }
.card:hover { border-color: var(--ink-2); }
.card h3 { font-size: 19px; margin: 0; }
.card .prob { color: var(--ink-2); font-size: 15px; margin: 0; }
.card .facts { display: flex; flex-wrap: wrap; gap: 6px 14px; font-family: var(--mono); font-size: 12px; color: var(--ink-2); }
.card .foot { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); }
.price { font-weight: 600; font-size: 20px; }
.tag { font-family: var(--mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; border: 1px solid var(--line); padding: 2px 8px; border-radius: 20px; color: var(--ink-2); }
.tag.live { border-color: var(--accent); color: var(--accent-ink); }

/* filtri progressivi */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 8px; }
.chip { font: 500 14px var(--sans); padding: 8px 14px; border: 1px solid var(--line); border-radius: 20px; background: var(--bg); color: var(--ink); cursor: pointer; min-height: 40px; }
.chip[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }
details.more-filters { margin: 4px 0 24px; }
details.more-filters summary { cursor: pointer; font-family: var(--mono); font-size: 12.5px; color: var(--ink-2); text-transform: uppercase; letter-spacing: .04em; }
.count { font-family: var(--mono); font-size: 12.5px; color: var(--ink-2); margin-bottom: 16px; }

/* elemento visivo: rete di nodi (SVG statico, nessuna animazione continua) */
.orchestra { width: 100%; height: auto; display: block; margin-top: 48px; }

/* pagina prodotto */
.product-hero { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: start; }
@media (max-width: 860px) { .product-hero { grid-template-columns: 1fr; gap: 28px; } }
.buybox { border: 1px solid var(--ink); border-radius: var(--radius); padding: 28px; position: sticky; top: 88px; background: var(--bg); }
.buybox .price { font-size: 34px; letter-spacing: -.02em; }
.buybox .was { color: var(--ink-2); text-decoration: line-through; margin-left: 8px; font-size: 18px; }
.buybox ul { list-style: none; padding: 0; margin: 18px 0; font-size: 15px; }
.buybox li { padding: 7px 0; border-top: 1px solid var(--line); }
.buybox .btn { width: 100%; text-align: center; }
.buybox .small { font-size: 13.5px; color: var(--ink-2); margin: 12px 0 0; }
.facts-row { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-top: 22px; font-family: var(--mono); font-size: 13px; color: var(--ink-2); }
.facts-row b { color: var(--ink); font-weight: 500; }
.outcomes { counter-reset: o; display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.outcomes > div { background: var(--bg); padding: 26px; }
.outcomes > div::before { counter-increment: o; content: "0" counter(o); font-family: var(--mono); color: var(--accent); font-size: 13px; display: block; margin-bottom: 10px; }
@media (max-width: 700px) { .outcomes { grid-template-columns: 1fr; } }
details.acc { border-top: 1px solid var(--line); }
details.acc:last-of-type { border-bottom: 1px solid var(--line); }
details.acc summary { list-style: none; cursor: pointer; padding: 18px 0; display: flex; justify-content: space-between; gap: 16px; font-weight: 500; }
details.acc summary::-webkit-details-marker { display: none; }
details.acc summary::after { content: "+"; font-family: var(--mono); color: var(--ink-2); }
details.acc[open] summary::after { content: "−"; }
details.acc .body { padding: 0 0 20px; color: var(--ink-2); max-width: 760px; }
details.acc summary .t { font-family: var(--mono); font-size: 13px; color: var(--accent-ink); min-width: 52px; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
@media (max-width: 860px) { .two { grid-template-columns: 1fr; gap: 28px; } }
.note { border-left: 2px solid var(--accent); padding: 4px 0 4px 16px; color: var(--ink-2); font-size: 15px; }
.sticky-cta { display: none; }
@media (max-width: 860px) {
  .buybox { position: static; }
  .sticky-cta { display: flex; position: fixed; left: 0; right: 0; bottom: 0; background: var(--bg); border-top: 1px solid var(--line);
    padding: 10px 16px; gap: 12px; align-items: center; justify-content: space-between; z-index: 6; }
  body.has-sticky { padding-bottom: 72px; }
}

footer { border-top: 1px solid var(--line); padding: 36px 0 48px; font-size: 14px; color: var(--ink-2); }
footer .ai { font-size: 12.5px; margin-top: 10px; }

/* Visual editoriali 16:9 (proposta del 19/10/2026): niente scritte sopra le immagini */
.media { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 12px; background: var(--line); }
.path .media { margin-bottom: 20px; }
.card .media { margin-bottom: 6px; }
.product-hero .media { margin-top: 24px; }
.foto-vera { margin: 0; }
.foto-vera img { filter: grayscale(1); }
.foto-vera figcaption, .didascalia { font-family: var(--mono); font-size: 12px; color: var(--ink-2); margin-top: 8px; }
.conduce { align-items: center; }
.formato { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; }
.formato.vivo { border-color: var(--ink); }
.formato ul { margin: 12px 0 0; padding-left: 18px; } .formato li { margin: 6px 0; }
.hero-split { display: grid; grid-template-columns: 5fr 7fr; gap: 48px; align-items: center; }
.hero-h1 { font-size: clamp(34px, 3.6vw, 54px); }
.hero-foto { margin: 0; }
.hero-foto .media { aspect-ratio: 16 / 10; object-position: 60% 50%; }
.meta-mono { font-family: var(--mono); font-size: 13px; color: var(--ink-2); margin-top: 18px; }
.metodo { padding-top: 24px; }
.foto-vera.gen img { filter: none; }
.path .foto-vera { margin: 0 0 20px; } .path .foto-vera .media { margin-bottom: 0; }
@media (max-width: 860px) { .hero-split { grid-template-columns: 1fr; gap: 28px; } .hero-split .btns .btn { width: 100%; text-align: center; } }
.fiducia-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin-top: 28px; }
.fiducia-grid h3 { font-size: 1.05rem; margin: 0 0 8px; } .fiducia-grid p { color: var(--ink-2); margin: 0 0 8px; font-size: .95rem; }
.fiducia-garanzia { margin-top: 24px; }
@media (max-width: 960px) { .fiducia-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .fiducia-grid { grid-template-columns: 1fr; } }
.fiducia-compatta { margin-top: 40px; padding: 24px 28px; background: var(--bg-alt, #f4f2ee); border-radius: 12px; }
.fiducia-compatta ul { margin: 12px 0; padding-left: 18px; color: var(--ink-2); } .fiducia-compatta li { margin: 6px 0; }