/* SellZone · landing "piattaforma": l'agente AI e tutta la piattaforma. Nessuna libreria: CSS e piattaforma.js */
:root {
  --bg: #07070c; --bg-2: #0d0d15; --card: #11111b; --card-2: #171725; --line: #23233a; --line-2: #2f2f4d;
  --text: #ededf5; --muted: #9b9bb6; --dim: #6d6d88;
  --blue: #5b8cff; --violet: #9b6bff; --teal: #2ee6c5; --amber: #ffb547;
  --grad: linear-gradient(100deg, #5b8cff 0%, #9b6bff 45%, #2ee6c5 100%);
  --r: 18px; --shadow: 0 30px 80px -30px rgba(0, 0, 0, .75);
  --pad: clamp(16px, 4vw, 48px);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; background: var(--bg); color: var(--text); overflow-x: hidden; font: 16px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Inter, Roboto, sans-serif; -webkit-font-smoothing: antialiased; }
body::before { content: ""; position: fixed; inset: -20vmax; z-index: -2; pointer-events: none;
  background: radial-gradient(40vmax 40vmax at 12% 8%, rgba(91, 140, 255, .15), transparent 60%), radial-gradient(35vmax 35vmax at 88% 28%, rgba(155, 107, 255, .12), transparent 60%), radial-gradient(30vmax 30vmax at 50% 98%, rgba(46, 230, 197, .08), transparent 60%); }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { line-height: 1.1; letter-spacing: -.02em; margin: 0; }
h2 { font-size: clamp(30px, 4.6vw, 54px); max-width: 20ch; }
h3 { font-size: 19px; }
p { margin: 0; }
b { font-weight: 650; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.eyebrow { color: var(--teal); font-weight: 650; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 14px; }
.sub { color: var(--muted); font-size: 18px; margin-top: 16px; max-width: 62ch; }
.note { color: var(--dim); font-size: 13.5px; margin-top: 14px; }
.demo-tag { position: absolute; right: 10px; bottom: -26px; font-size: 11.5px; color: var(--dim); letter-spacing: .02em; }

/* barra di avanzamento */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 60; }
.progress span { display: block; height: 100%; transform-origin: 0 50%; transform: scaleX(0); background: var(--grad); }

/* bottoni */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 18px; border-radius: 12px; font-weight: 650; font-size: 15px; border: 1px solid transparent; cursor: pointer; font-family: inherit; transition: transform .2s, box-shadow .2s, background .2s, border-color .2s; }
.btn.primary { background: var(--grad); color: #08080f; box-shadow: 0 10px 30px -10px rgba(91, 140, 255, .7); }
.btn.primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -12px rgba(155, 107, 255, .85); }
.btn.ghost { border-color: var(--line); color: var(--text); background: rgba(255, 255, 255, .02); }
.btn.ghost:hover { border-color: var(--line-2); background: rgba(255, 255, 255, .05); }
.btn.big { padding: 15px 24px; font-size: 16px; border-radius: 14px; }
.btn.full { width: 100%; }
.btn:focus-visible, a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; }

/* navigazione */
.nav { position: sticky; top: 0; z-index: 50; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 14px var(--pad); background: rgba(7, 7, 12, .62); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid transparent; transition: border-color .3s; }
.nav.scrolled { border-bottom-color: var(--line); }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 750; font-size: 18px; letter-spacing: -.01em; }
.mark { width: 28px; height: 28px; border-radius: 8px; background: url(/icon-192.png?l=2) center / cover; box-shadow: 0 0 20px rgba(58, 47, 214, .5); flex: none; }
.links { display: flex; gap: 24px; color: var(--muted); font-size: 15px; }
.links a { position: relative; } .links a:hover, .links a.on { color: var(--text); }
.links a.on::after { content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px; border-radius: 2px; background: var(--grad); }
.nav-cta { display: flex; gap: 10px; }
.show-s { display: none; }
@media (max-width: 1080px) { .links { display: none; } }
@media (max-width: 520px) { .nav { gap: 8px; } .logo { font-size: 16px; gap: 8px; } .mark { width: 22px; height: 22px; } .nav-cta { gap: 6px; } .nav-cta .btn { padding: 8px 12px; font-size: 13.5px; } .hide-s { display: none; } .show-s { display: inline; } }

/* comparsa allo scroll (se lo script non parte, dopo 2,5 secondi compare comunque tutto) */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s cubic-bezier(.2, .7, .2, 1) var(--d, 0s), transform .7s cubic-bezier(.2, .7, .2, 1) var(--d, 0s); animation: show-anyway .01s 2.5s forwards; }
.reveal.in { opacity: 1; transform: none; animation: none; }
@keyframes show-anyway { to { opacity: 1; transform: none; } }
/* la prima schermata compare subito, senza aspettare lo script */
.rise { animation: rise .8s cubic-bezier(.2, .7, .2, 1) both; animation-delay: var(--d, 0s); }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

/* sezioni */
.section { padding: clamp(70px, 10vw, 130px) var(--pad); max-width: 1240px; margin: 0 auto; position: relative; }
.section.alt::before { content: ""; position: absolute; inset: 0 calc(50% - 50vw); z-index: -1; background: linear-gradient(180deg, transparent, rgba(255, 255, 255, .018) 12%, rgba(255, 255, 255, .018) 88%, transparent); }

/* HERO */
.hero { display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(28px, 5vw, 70px); align-items: center; padding: clamp(40px, 7vw, 90px) var(--pad) clamp(60px, 8vw, 100px); max-width: 1240px; margin: 0 auto; }
.hero h1 { font-size: clamp(38px, 5.6vw, 68px); max-width: 15ch; }
.h1-small { display: block; font-size: .5em; color: var(--muted); letter-spacing: -.01em; margin-top: 14px; font-weight: 600; }
.lead { color: var(--muted); font-size: clamp(17px, 1.6vw, 19px); margin-top: 22px; max-width: 58ch; }
.lead b { color: var(--text); }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.hero-proof { list-style: none; padding: 0; margin: 34px 0 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; max-width: 620px; }
.hero-proof li { border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; background: rgba(255, 255, 255, .02); display: grid; gap: 2px; }
.hero-proof b { font-size: 22px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-proof span { color: var(--muted); font-size: 13px; line-height: 1.4; }
.hero-visual { position: relative; display: flex; justify-content: center; padding: 20px 0 40px; }
.phone { width: min(340px, 86vw); height: 560px; border-radius: 38px; background: linear-gradient(180deg, #14141f, #0c0c14); border: 1px solid var(--line-2); box-shadow: var(--shadow), 0 0 0 8px rgba(255, 255, 255, .02); display: flex; flex-direction: column; overflow: hidden; }
.ph-top { display: flex; align-items: center; gap: 10px; padding: 18px 18px 12px; border-bottom: 1px solid var(--line); background: rgba(255, 255, 255, .02); }
.ph-top b { display: block; font-size: 15px; } .ph-top small { color: var(--teal); font-size: 12px; }
.ph-av { width: 36px; height: 36px; border-radius: 50%; background: var(--grad); color: #08080f; font-weight: 800; display: grid; place-items: center; }
.ph-chat { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; gap: 8px; padding: 14px; overflow: hidden; }
.msg { max-width: 82%; padding: 9px 12px; border-radius: 16px; font-size: 14px; line-height: 1.45; animation: pop .35s cubic-bezier(.2, .9, .3, 1.2) both; }
.msg.in { align-self: flex-start; background: #1f1f30; border-bottom-left-radius: 5px; }
.msg.out { align-self: flex-end; background: linear-gradient(135deg, #3a5bd9, #6b4fd8); border-bottom-right-radius: 5px; }
.msg.voice { font-variant-numeric: tabular-nums; }
.msg.sys { align-self: center; background: transparent; border: 1px dashed var(--line-2); color: var(--muted); font-size: 12px; border-radius: 10px; }
.typing { align-self: flex-end; display: inline-flex; gap: 4px; padding: 11px 14px; border-radius: 16px; background: #2a2a44; }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: #c9c9e8; animation: blink 1s infinite; } .typing i:nth-child(2) { animation-delay: .15s; } .typing i:nth-child(3) { animation-delay: .3s; }
@keyframes blink { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }
@keyframes pop { from { opacity: 0; transform: translateY(8px) scale(.96); } to { opacity: 1; transform: none; } }
.float { position: absolute; background: rgba(17, 17, 27, .86); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border: 1px solid var(--line-2); border-radius: 14px; padding: 10px 14px; box-shadow: var(--shadow); display: grid; gap: 2px; animation: hover 6s ease-in-out infinite; }
.float small { color: var(--muted); font-size: 11.5px; line-height: 1.3; } .float b { font-size: 20px; } .float i { font-style: normal; color: var(--teal); font-size: 12px; }
/* le schede galleggiano ai lati del telefono, senza coprire la chat */
.float { width: 150px; }
.f1 { top: 64px; left: calc(50% - 170px - 150px + 12px); } .f2 { top: 44%; left: calc(50% + 170px - 12px); animation-delay: -2s; } .f3 { bottom: 70px; left: calc(50% - 170px - 150px + 12px); animation-delay: -4s; }
.f3 b { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
@keyframes hover { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@media (max-width: 1180px) and (min-width: 961px) { .phone { width: 300px; } .f1, .f3 { left: calc(50% - 150px - 150px + 12px); } .f2 { left: calc(50% + 150px - 12px); } }
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; }
  /* telefono e sotto le tre schede in fila */
  .hero-visual { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; justify-items: stretch; padding-bottom: 34px; }
  .hero-visual .phone { grid-column: 1 / -1; justify-self: center; }
  .float { position: static; width: auto; animation: none; }
}
@media (max-width: 520px) { .hero-proof { grid-template-columns: 1fr; } .phone { height: 480px; } .float { padding: 8px 10px; } .float b { font-size: 16px; } .float small { font-size: 11px; } .hero-visual { grid-template-columns: 1fr 1fr; } .f3 { grid-column: 1 / -1; } }

/* nastro delle integrazioni */
.marquee { overflow: hidden; border-block: 1px solid var(--line); padding: 16px 0; -webkit-mask: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); mask: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.track { display: flex; gap: 46px; width: max-content; animation: slide 36s linear infinite; color: var(--muted); font-weight: 600; letter-spacing: .02em; }
.track span::before { content: "◆"; color: var(--violet); margin-right: 12px; font-size: 10px; vertical-align: 2px; }
@keyframes slide { to { transform: translateX(-50%); } }

/* il problema: funnel che perde */
.leak { margin-top: 40px; display: grid; gap: 10px; max-width: 880px; position: relative; }
.leak-row { display: grid; grid-template-columns: 170px minmax(0, 1fr) 70px; gap: 14px; align-items: center; position: relative; }
.leak-row span { color: var(--muted); font-size: 15px; }
.leak-row i { height: 34px; border-radius: 10px; background: var(--grad); width: 0; transition: width 1.2s cubic-bezier(.2, .7, .2, 1); box-shadow: 0 8px 24px -10px rgba(91, 140, 255, .6); }
.leak.play .leak-row i { width: var(--w); }
.leak-row b { font-variant-numeric: tabular-nums; font-size: 18px; text-align: right; }
.leak-row em { grid-column: 2 / -1; font-style: normal; font-size: 13px; color: var(--amber); margin-top: -4px; opacity: 0; transition: opacity .6s 1s; }
.leak-row em::before { content: "↓ "; }
.leak.play .leak-row em { opacity: 1; }
@media (max-width: 600px) { .leak-row { grid-template-columns: 1fr 60px; } .leak-row span { grid-column: 1 / -1; } .leak-row i { grid-column: 1; } }

/* come funziona: storia ancorata */
.story { max-width: 1240px; margin: 0 auto; padding: clamp(70px, 10vw, 130px) var(--pad); }
.story-head { margin-bottom: 40px; }
.story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(30px, 5vw, 70px); }
.story-visual { position: sticky; top: 110px; align-self: start; }
.screen-wrap { position: relative; min-height: 360px; border: 1px solid var(--line-2); border-radius: 24px; background: linear-gradient(180deg, var(--card-2), var(--card)); box-shadow: var(--shadow); overflow: hidden; }
.scr { position: absolute; inset: 0; padding: 22px; display: flex; flex-direction: column; gap: 10px; opacity: 0; transform: translateY(14px); transition: opacity .5s, transform .5s; pointer-events: none; }
.scr.on { opacity: 1; transform: none; pointer-events: auto; }
.scr-head { font-weight: 700; color: var(--muted); font-size: 14px; margin-bottom: 4px; }
.mini-row { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 10px; align-items: baseline; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255, 255, 255, .02); }
.mini-row b { font-size: 20px; } .mini-row i { font-style: normal; color: var(--dim); font-size: 12.5px; }
.mini-row.hl { border-color: rgba(46, 230, 197, .4); background: rgba(46, 230, 197, .06); }
.bub { max-width: 85%; padding: 9px 12px; border-radius: 14px; font-size: 14px; }
.bub.in { align-self: flex-start; background: #1f1f30; } .bub.out { align-self: flex-end; background: linear-gradient(135deg, #3a5bd9, #6b4fd8); }
.sys { color: var(--teal); font-size: 12.5px; margin-top: auto; }
.tl { display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 12px; align-items: start; padding: 8px 0; }
.tl div { display: grid; gap: 2px; } .tl b { font-size: 14.5px; } .tl span { color: var(--muted); font-size: 14px; }
.tl-dot { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--line-2); margin-top: 4px; }
.tl-dot.done { background: var(--blue); border-color: var(--blue); } .tl-dot.now { background: var(--teal); border-color: var(--teal); box-shadow: 0 0 0 6px rgba(46, 230, 197, .18); }
.note-card { padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line); background: rgba(255, 255, 255, .02); font-size: 14.5px; }
.race { display: grid; gap: 12px; }
.rr { display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 4px 12px; align-items: center; }
.rr span { font-size: 13.5px; color: var(--muted); } .rr i { height: 12px; border-radius: 6px; background: var(--grad); width: var(--w); }
.rr b { grid-column: 2; font-size: 12px; color: var(--teal); }
.rr.off i { background: #3a3a55; } .rr.off b { color: var(--dim); }
.story-steps { display: grid; gap: 12vh; padding: 6vh 0 30vh; }
.step { opacity: .35; transition: opacity .4s; border-left: 2px solid var(--line); padding-left: 22px; }
.step.on { opacity: 1; border-left-color: var(--teal); }
.step .n { font-size: 13px; color: var(--teal); font-weight: 700; letter-spacing: .1em; }
.step h3 { font-size: clamp(22px, 2.4vw, 28px); margin: 8px 0 10px; }
.step p { color: var(--muted); font-size: 16.5px; }
@media (max-width: 900px) {
  .story-grid { grid-template-columns: 1fr; }
  .story-visual { top: 72px; z-index: 2; }
  .screen-wrap { min-height: 300px; }
  .story-steps { gap: 46vh; padding: 20vh 0 40vh; }
  .step { background: rgba(7, 7, 12, .86); padding: 16px 18px; border: 1px solid var(--line); border-radius: 16px; position: relative; z-index: 3; }
  .step.on { border-color: rgba(46, 230, 197, .5); }
}

/* l'agente */
.ai-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 44px; }
.ai-card { position: relative; border: 1px solid var(--line); border-radius: var(--r); background: linear-gradient(180deg, var(--card-2), var(--card)); padding: 24px; display: flex; flex-direction: column; gap: 10px; }
.ai-card.wide { grid-column: span 2; grid-row: span 2; }
.ai-card p { color: var(--muted); font-size: 15px; } .ai-card p b { color: var(--text); }
.ai-n { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; font-weight: 800; color: #08080f; background: var(--grad); }
.phases { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.phases span { font-size: 12.5px; padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--muted); }
.phases span:not(:last-child)::after { content: " →"; color: var(--dim); }
.train { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; padding: 16px; border-radius: 16px; background: rgba(0, 0, 0, .25); border: 1px solid var(--line); min-height: 280px; }
.tb { max-width: 86%; padding: 9px 12px; border-radius: 14px; font-size: 14.5px; opacity: 0; transform: translateY(8px); transition: opacity .4s, transform .4s; }
.train.play .tb { opacity: 1; transform: none; }
.train.play .tb:nth-child(2) { transition-delay: .9s; } .train.play .tb:nth-child(3) { transition-delay: 2s; } .train.play .tb:nth-child(4) { transition-delay: 3.1s; } .train.play .tb:nth-child(5) { transition-delay: 4.2s; }
.tb.in { align-self: flex-start; background: #1f1f30; }
.tb.out { align-self: flex-end; background: linear-gradient(135deg, #3a5bd9, #6b4fd8); }
.tb.fix { align-self: flex-start; background: rgba(255, 181, 71, .12); border: 1px dashed rgba(255, 181, 71, .55); color: #ffd79a; }
.tb.ok { background: rgba(46, 230, 197, .12); border: 1px dashed rgba(46, 230, 197, .5); color: #9ff3e2; }
.levels { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.levels span { font-size: 12.5px; padding: 4px 10px; border-radius: 999px; background: rgba(255, 255, 255, .04); color: var(--muted); }
.levels span.on { background: rgba(46, 230, 197, .16); color: #9ff3e2; font-weight: 700; }
.modes { margin-top: 30px; border: 1px solid var(--line); border-radius: var(--r); padding: 22px 24px; background: rgba(255, 255, 255, .02); }
.mode-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 14px; }
.mode-list div { display: grid; gap: 4px; } .mode-list span { color: var(--muted); font-size: 14px; }
@media (max-width: 980px) { .ai-grid { grid-template-columns: 1fr 1fr; } .ai-card.wide { grid-column: span 2; grid-row: auto; } .mode-list { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .ai-grid { grid-template-columns: 1fr; } .ai-card.wide { grid-column: auto; } .mode-list { grid-template-columns: 1fr; } }

/* ricontatti */
.fu { display: grid; grid-template-columns: 1.1fr .9fr; gap: 16px; margin-top: 44px; }
.fu-seq, .fu-events { border: 1px solid var(--line); border-radius: var(--r); padding: 24px; background: linear-gradient(180deg, var(--card-2), var(--card)); }
.seq-line { position: relative; display: grid; gap: 16px; margin-top: 18px; padding-left: 22px; }
.seq-line::before { content: ""; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 2px; background: var(--line-2); }
.seq-line::after { content: ""; position: absolute; left: 6px; top: 6px; width: 2px; height: 0; background: var(--grad); transition: height 2.4s ease; }
.fu-seq.play .seq-line::after { height: calc(100% - 12px); }
.sq { position: relative; display: grid; gap: 2px; opacity: .4; transition: opacity .5s; }
.fu-seq.play .sq { opacity: 1; } .fu-seq.play .sq:nth-child(2) { transition-delay: .6s; } .fu-seq.play .sq:nth-child(3) { transition-delay: 1.2s; } .fu-seq.play .sq:nth-child(4) { transition-delay: 1.8s; }
.sq::before { content: ""; position: absolute; left: -21px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); border: 2px solid var(--blue); }
.sq b { font-size: 15px; } .sq span { color: var(--muted); font-size: 14.5px; }
.ev { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 10px; }
.ev li { display: grid; gap: 2px; padding: 10px 12px; border-radius: 12px; background: rgba(255, 255, 255, .025); border: 1px solid var(--line); }
.ev-k { font-weight: 650; font-size: 14.5px; } .ev-k::before { content: "⚡ "; }
.ev-v { color: var(--muted); font-size: 14px; }
.ctrl { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; align-items: center; margin-top: 16px; border: 1px solid rgba(46, 230, 197, .3); border-radius: var(--r); padding: 26px; background: linear-gradient(140deg, rgba(91, 140, 255, .08), rgba(46, 230, 197, .05)); }
.ctrl-txt p { color: var(--muted); margin-top: 10px; } .ctrl-txt p b { color: var(--text); }
.ctrl-chart { position: relative; display: grid; gap: 12px; }
.cc { display: grid; grid-template-columns: minmax(0, 1fr); gap: 4px; }
.cc span { font-size: 13.5px; color: var(--muted); }
.cc i { height: 22px; border-radius: 8px; background: var(--grad); width: 0; transition: width 1.4s cubic-bezier(.2, .7, .2, 1); }
.cc.ctl i { background: repeating-linear-gradient(45deg, #3a3a58 0 8px, #2c2c44 8px 16px); }
.ctrl.play .cc i { width: var(--w); }
.cc b { font-size: 14px; }
.cc-res { display: flex; align-items: baseline; gap: 10px; margin-top: 4px; }
.cc-res b { font-size: 30px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.cc-res span { font-size: 13px; padding: 3px 10px; border-radius: 999px; background: rgba(46, 230, 197, .16); color: #9ff3e2; font-weight: 700; }
@media (max-width: 900px) { .fu, .ctrl { grid-template-columns: 1fr; } }

/* impara */
.learn { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: 44px; }
.l-card { border: 1px solid var(--line); border-radius: var(--r); padding: 24px; background: linear-gradient(180deg, var(--card-2), var(--card)); display: grid; gap: 10px; align-content: start; }
.l-ico { font-size: 26px; } .l-card p { color: var(--muted); font-size: 15px; }
@media (max-width: 1000px) { .learn { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .learn { grid-template-columns: 1fr; } }

/* piattaforma: schede */
.tabs { margin-top: 40px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(180deg, var(--card-2), var(--card)); overflow: hidden; }
.tab-list { display: flex; gap: 4px; padding: 8px; border-bottom: 1px solid var(--line); overflow-x: auto; scrollbar-width: none; }
.tab-list::-webkit-scrollbar { display: none; }
.tab-list button { flex: none; border: 0; background: transparent; color: var(--muted); font: inherit; font-weight: 650; font-size: 15px; padding: 10px 16px; border-radius: 10px; cursor: pointer; }
.tab-list button[aria-selected="true"] { background: rgba(255, 255, 255, .07); color: var(--text); box-shadow: inset 0 -2px 0 var(--teal); }
.tp { display: none; padding: 24px; } .tp.on { display: block; animation: pop .4s both; }
.tp ul { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.tp li { display: grid; gap: 4px; padding: 16px; border-radius: 14px; border: 1px solid var(--line); background: rgba(255, 255, 255, .02); color: var(--muted); font-size: 15px; }
.tp li b { color: var(--text); font-size: 16px; }
@media (max-width: 700px) { .tp ul { grid-template-columns: 1fr; } }
.work { margin-top: 16px; border: 1px solid var(--line); border-radius: var(--r); padding: 22px 24px; background: rgba(255, 255, 255, .02); }
.work-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 14px; }
.work-list div { display: grid; gap: 2px; } .work-list span { color: var(--muted); font-size: 14px; }
@media (max-width: 800px) { .work-list { grid-template-columns: 1fr 1fr; } }

/* sicurezza */
.sec-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 40px; }
.sg { display: grid; gap: 4px; padding: 18px 20px; border-radius: 16px; border: 1px solid var(--line); background: rgba(255, 255, 255, .02); }
.sg span { color: var(--muted); font-size: 14.5px; }
@media (max-width: 860px) { .sec-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .sec-grid { grid-template-columns: 1fr; } }

/* prima e dopo */
.vs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 40px; }
.vs-col { border-radius: var(--r); padding: 26px; border: 1px solid var(--line); }
.vs-col ul { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 12px; }
.vs-col li { padding-left: 28px; position: relative; color: var(--muted); }
.vs-col.old li::before { content: "✕"; position: absolute; left: 0; color: var(--dim); font-weight: 800; }
.vs-col.new { border-color: rgba(46, 230, 197, .35); background: linear-gradient(160deg, rgba(91, 140, 255, .1), rgba(46, 230, 197, .05)); }
.vs-col.new li { color: var(--text); } .vs-col.new li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 800; }
@media (max-width: 760px) { .vs { grid-template-columns: 1fr; } }

/* come si parte */
.start { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: 40px; counter-reset: s; }
.st { position: relative; border: 1px solid var(--line); border-radius: var(--r); padding: 22px; background: linear-gradient(180deg, var(--card-2), var(--card)); display: grid; gap: 8px; align-content: start; }
.st-d { font-size: 12.5px; font-weight: 700; color: var(--teal); letter-spacing: .08em; text-transform: uppercase; }
.st b { font-size: 18px; } .st p { color: var(--muted); font-size: 14.5px; }
@media (max-width: 960px) { .start { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .start { grid-template-columns: 1fr; } }

/* faq */
.faq { display: grid; gap: 10px; margin-top: 30px; max-width: 900px; }
.faq details { border: 1px solid var(--line); border-radius: 14px; background: rgba(255, 255, 255, .02); }
.faq summary { cursor: pointer; list-style: none; padding: 16px 18px; font-weight: 650; display: flex; justify-content: space-between; gap: 14px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--teal); font-size: 20px; line-height: 1; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { padding: 0 18px 16px; color: var(--muted); }

/* demo */
.cta { text-align: center; }
.cta h2, .cta .sub { margin-left: auto; margin-right: auto; }
.demo { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; max-width: 760px; margin: 34px auto 0; text-align: left; border: 1px solid var(--line-2); border-radius: 22px; padding: 26px; background: linear-gradient(180deg, var(--card-2), var(--card)); box-shadow: var(--shadow); }
.demo label { display: grid; gap: 6px; color: var(--muted); font-size: 14px; }
.demo input, .demo select, .demo textarea { font: inherit; color: var(--text); background: #0c0c14; border: 1px solid var(--line-2); border-radius: 12px; padding: 12px 14px; width: 100%; }
.demo input:focus, .demo select:focus, .demo textarea:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(46, 230, 197, .15); }
.demo .full { grid-column: 1 / -1; }
.hp { position: absolute; left: -9999px; }
.form-msg { min-height: 1.4em; font-size: 14.5px; color: var(--teal); }
.form-msg.err { color: var(--amber); }
@media (max-width: 600px) { .demo { grid-template-columns: 1fr; padding: 20px; } }

/* piede e pulsante fisso sul telefono */
.foot { display: flex; gap: 18px; align-items: center; justify-content: space-between; flex-wrap: wrap; padding: 28px var(--pad) 90px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; max-width: 1240px; margin: 0 auto; }
.sticky-cta { position: fixed; left: 16px; right: 16px; bottom: calc(14px + env(safe-area-inset-bottom)); z-index: 40; display: none; transform: translateY(140%); transition: transform .35s; }
.sticky-cta .btn { width: 100%; padding: 14px; }
.sticky-cta.on { transform: none; }
@media (max-width: 760px) { .sticky-cta { display: block; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}