/* PrismaView — sito vetrina. Design system allineato all'app:
   stessa palette dei .prsm/markdown, vetro (Liquid Glass), tema chiaro/scuro. */

:root{
  --bg:#f4f5f8; --fg:#1d1d22; --muted:#6b6b76; --card:#ffffff;
  --line:rgba(0,0,0,.08); --accent:#2f6ae6; --accent2:#33c7ff;
  --ok:#1faa59; --warn:#e8a13a;
  --glass:rgba(255,255,255,.62); --glass-brd:rgba(255,255,255,.7);
  --shadow:0 10px 40px -12px rgba(20,30,70,.28);
  --maxw:1080px; --radius:22px;
  --grad:linear-gradient(120deg,var(--accent),var(--accent2));
}
[data-theme="dark"]{
  --bg:#0b0b0f; --fg:#f3f3f6; --muted:#9a9aa4; --card:#16161c;
  --line:rgba(255,255,255,.10); --accent:#6ea0ff; --accent2:#33c7ff;
  --glass:rgba(28,28,38,.55); --glass-brd:rgba(255,255,255,.10);
  --shadow:0 18px 50px -16px rgba(0,0,0,.7);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0b0b0f; --fg:#f3f3f6; --muted:#9a9aa4; --card:#16161c;
    --line:rgba(255,255,255,.10); --accent:#6ea0ff; --accent2:#33c7ff;
    --glass:rgba(28,28,38,.55); --glass-brd:rgba(255,255,255,.10);
    --shadow:0 18px 50px -16px rgba(0,0,0,.7);
  }
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Inter,system-ui,"Noto Sans",sans-serif;
  -webkit-font-smoothing:antialiased;line-height:1.6;overflow-x:hidden;
}
:lang(hi){font-family:-apple-system,"Noto Sans Devanagari",system-ui,sans-serif}
:lang(zh-Hans){font-family:-apple-system,"PingFang SC","Noto Sans SC",system-ui,sans-serif}

a{color:var(--accent);text-decoration:none}
h1,h2,h3{line-height:1.12;letter-spacing:-.02em;margin:0}
p{margin:0}
/* .wrap imposta SOLO max-width e padding orizzontale (long-hand): così non
   azzera il padding verticale delle section, che sono anche .wrap. */
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:22px;padding-right:22px}
section{position:relative;padding-top:clamp(72px,9vw,128px);padding-bottom:clamp(72px,9vw,128px)}

/* ---------- animated aurora background ---------- */
.aurora{position:fixed;inset:0;z-index:-2;overflow:hidden;pointer-events:none}
.aurora span{
  position:absolute;border-radius:50%;filter:blur(70px);opacity:.55;
  background:var(--grad);animation:float 22s ease-in-out infinite;
  will-change:transform;
}
.aurora .b1{width:46vw;height:46vw;top:-12vw;left:-8vw;animation-delay:0s}
.aurora .b2{width:38vw;height:38vw;top:24vh;right:-10vw;background:linear-gradient(120deg,var(--accent2),#7d5cff);animation-delay:-7s}
.aurora .b3{width:34vw;height:34vw;bottom:-12vw;left:24vw;background:linear-gradient(120deg,#7d5cff,var(--accent));animation-delay:-13s;opacity:.4}
.grain{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(120% 80% at 50% 0%,transparent 40%,var(--bg) 100%)}
@keyframes float{
  0%,100%{transform:translate3d(0,0,0) scale(1)}
  33%{transform:translate3d(4vw,3vh,0) scale(1.08)}
  66%{transform:translate3d(-3vw,5vh,0) scale(.95)}
}
@media (prefers-reduced-motion:reduce){
  .aurora span{animation:none}
  *{scroll-behavior:auto !important}
}

/* ---------- glass primitives ---------- */
.glass{
  background:var(--glass);
  -webkit-backdrop-filter:saturate(180%) blur(22px);
  backdrop-filter:saturate(180%) blur(22px);
  border:1px solid var(--glass-brd);
  border-radius:var(--radius);box-shadow:var(--shadow);
}
.card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px;box-shadow:0 2px 10px rgba(20,30,70,.05);
  transition:transform .4s cubic-bezier(.2,.7,.2,1),box-shadow .4s,border-color .4s;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--accent) 40%,var(--line))}

/* ---------- nav ---------- */
.nav{position:sticky;top:14px;z-index:50;margin:14px auto 0;max-width:var(--maxw);
  display:flex;align-items:center;gap:14px;padding:10px 16px;border-radius:18px}
.nav .brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em}
.nav .brand img{width:30px;height:30px;border-radius:8px}
.nav .spacer{flex:1}
.nav a.navlink{color:var(--muted);font-size:14px;font-weight:600;padding:6px 8px;border-radius:8px;transition:color .25s}
.nav a.navlink:hover{color:var(--fg)}
@media(max-width:760px){.nav .navlink{display:none}}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;
  padding:11px 18px;border-radius:13px;border:1px solid transparent;cursor:pointer;
  background:var(--grad);color:#fff;box-shadow:0 8px 24px -8px var(--accent);
  transition:transform .25s,box-shadow .25s}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px -10px var(--accent)}
.btn.ghost{background:transparent;color:var(--fg);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent)}
.ctl{appearance:none;background:transparent;border:1px solid var(--line);color:var(--fg);
  border-radius:10px;padding:7px 10px;font-size:13px;font-weight:600;cursor:pointer}
select.ctl{padding-right:8px}

/* ---------- hero ---------- */
.hero{text-align:center;padding-top:clamp(48px,7vw,88px);padding-bottom:clamp(40px,6vw,72px)}
.hero .logo{display:block;width:104px;height:104px;margin:0 auto;border-radius:26px;box-shadow:var(--shadow);
  animation:hover-logo 6s ease-in-out infinite}
@keyframes hover-logo{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-10px) rotate(-2deg)}}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--accent);margin:26px 0 14px;
  padding:6px 13px;border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);
  border-radius:999px;background:color-mix(in srgb,var(--accent) 8%,transparent)}
.hero h1{font-size:clamp(36px,7vw,68px);font-weight:800;max-width:14ch;margin:0 auto;
  background:linear-gradient(180deg,var(--fg),color-mix(in srgb,var(--fg) 55%,var(--accent)));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{max-width:620px;margin:20px auto 0;font-size:clamp(16px,2.4vw,20px);color:var(--muted)}
.hero .cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.hero .device{max-width:340px;margin:46px auto 0;border-radius:34px;box-shadow:var(--shadow);
  border:1px solid var(--line)}

/* ---------- section headings ---------- */
.shead{text-align:center;max-width:680px;margin:0 auto 44px}
.shead .kicker{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.shead h2{font-size:clamp(26px,4.5vw,42px);font-weight:800;margin:10px 0 12px}
.shead p{color:var(--muted);font-size:clamp(15px,2vw,18px)}

.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media(max-width:880px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.g2,.g3,.g4{grid-template-columns:1fr}}

.feature .ic{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:color-mix(in srgb,var(--accent) 12%,transparent);color:var(--accent);margin-bottom:14px}
.feature .ic svg{width:24px;height:24px}
.feature h3{font-size:19px;font-weight:700;margin-bottom:6px}
.feature p{color:var(--muted);font-size:15px}

/* ---------- format / split ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
@media(max-width:880px){.split{grid-template-columns:1fr;gap:28px}}
.split h2{font-size:clamp(24px,4vw,38px);font-weight:800;margin-bottom:14px}
.split p{color:var(--muted);font-size:16px;margin-bottom:14px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.chip{font-size:13px;font-weight:600;padding:6px 12px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);color:var(--fg)}
.chip b{color:var(--accent)}

/* mini live .prsm preview */
.demo{padding:22px}
.demo .dtitle{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent)}
.demo .dsub{color:var(--muted);font-size:13px;margin:2px 0 16px}
.kpis{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:14px}
.kpi{border:1px solid var(--line);border-radius:14px;padding:12px 14px;background:var(--card)}
.kpi .v{font-size:22px;font-weight:800}
.kpi .l{font-size:12px;color:var(--muted)}
.kpi .d{font-size:12px;font-weight:700;color:var(--ok);margin-top:2px}
.seg{display:flex;gap:4px;background:color-mix(in srgb,var(--line) 60%,transparent);
  border-radius:11px;padding:4px;margin-bottom:14px;width:max-content}
.seg button{border:0;background:transparent;color:var(--muted);font-weight:700;font-size:13px;
  padding:6px 14px;border-radius:8px;cursor:pointer;transition:.25s}
.seg button.on{background:var(--card);color:var(--fg);box-shadow:0 1px 4px rgba(0,0,0,.12)}
.spark{width:100%;height:120px}
.spark path.area{fill:url(#sg);opacity:.9}
.spark path.line{fill:none;stroke:var(--accent);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}

/* ---------- skill / prompt ---------- */
.prompthead{display:flex;align-items:center;justify-content:space-between;gap:14px;
  flex-wrap:wrap;margin-bottom:10px}
.promptlabel{font-size:13px;font-weight:700;color:var(--muted);margin:0}
.prompthead .copy{padding:9px 16px;font-size:13px}
.promptbox{position:relative}
.promptbox pre{margin:0;max-height:360px;overflow:auto;background:var(--card);
  border:1px solid var(--line);border-radius:16px;padding:20px;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px;line-height:1.6;
  color:var(--fg);white-space:pre-wrap;word-break:break-word;-webkit-overflow-scrolling:touch}
.skill-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}

/* ---------- signing / roadmap ---------- */
.badge-soon{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  padding:4px 10px;border-radius:999px;color:var(--accent);
  border:1px solid color-mix(in srgb,var(--accent) 35%,transparent);
  background:color-mix(in srgb,var(--accent) 10%,transparent);margin-bottom:14px}
.steps{display:grid;gap:14px}
.step{display:flex;gap:16px;align-items:flex-start}
.step .n{flex:none;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;color:#fff;background:var(--grad)}
.step h4{font-size:16px;font-weight:700;margin:0 0 2px}
.step p{color:var(--muted);font-size:14.5px;margin:0}
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(var(--accent),transparent)}
.tl{position:relative;margin-bottom:22px}
.tl::before{content:"";position:absolute;left:-24px;top:5px;width:12px;height:12px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 20%,transparent)}
.tl .when{font-size:12px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.05em}
.tl h4{font-size:17px;font-weight:700;margin:3px 0 4px}
.tl p{color:var(--muted);font-size:14.5px;margin:0}

/* ---------- privacy ---------- */
.privacy ul{margin:14px 0 0;padding:0;list-style:none;display:grid;gap:12px}
.privacy li{display:flex;gap:12px;align-items:flex-start;color:var(--muted);font-size:15.5px}
.privacy li svg{flex:none;width:22px;height:22px;color:var(--ok);margin-top:1px}
.privacy li b{color:var(--fg);font-weight:600}

/* ---------- footer ---------- */
/* la separazione dal contenuto la dà il padding-bottom della section
   precedente; qui basta il padding interno + il filo border-top. */
footer{padding-top:52px;padding-bottom:72px;border-top:1px solid var(--line);margin-top:clamp(40px,6vw,72px)}
footer .frow{display:flex;flex-wrap:wrap;gap:18px 22px;align-items:center}
footer .brand{display:flex;align-items:center;gap:10px;font-weight:700}
footer .brand img{width:28px;height:28px;border-radius:8px}
footer a{color:var(--muted);font-weight:600;font-size:14px}
footer a:hover{color:var(--fg)}
footer .muted{color:var(--muted);font-size:13px}

/* ---------- scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);
  transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}