/* redtube-it.com
   Fondo carbone #1a1c20, testo avorio, un solo accento arancio-rosso #ff4d1a.
   Testata con logo a sinistra e menu a destra, hero diviso, sezioni numerate. */

@font-face{
  font-family:"Bricolage Grotesque";
  src:url("/assets/fonts/bricolage-latin.woff2") format("woff2");
  font-weight:200 800;font-style:normal;font-display:swap;
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:"Bricolage Grotesque";
  src:url("/assets/fonts/bricolage-latin-ext.woff2") format("woff2");
  font-weight:200 800;font-style:normal;font-display:swap;
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face{
  font-family:"Inter";
  src:url("/assets/fonts/inter-latin.woff2") format("woff2");
  font-weight:100 900;font-style:normal;font-display:swap;
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:"Inter";
  src:url("/assets/fonts/inter-latin-ext.woff2") format("woff2");
  font-weight:100 900;font-style:normal;font-display:swap;
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}

:root{
  --bg:#1a1c20;
  --bg-soft:#202329;
  --bg-deep:#141619;
  --ink:#f3ede4;
  --body:#c2bcb2;
  --muted:#98928a;
  --line:rgba(243,237,228,.16);
  --line-soft:rgba(243,237,228,.09);
  --accent:#ff4d1a;
  --accent-ink:#170d09;
  --disp:"Bricolage Grotesque","Helvetica Neue",Arial,sans-serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:16.5px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%}
a{color:inherit}
a:hover{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
::selection{background:var(--accent);color:var(--accent-ink)}
.skip{position:absolute;left:-9999px;top:0}
.skip:focus{left:14px;top:12px;background:var(--accent);color:var(--accent-ink);padding:10px 14px;z-index:80;font-weight:600}
.wrap{width:min(1200px,calc(100% - 56px));margin:0 auto}

/* ---------- testata ---------- */
.top{position:relative;border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;justify-content:space-between;gap:26px;min-height:78px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;line-height:1}
.brand .mark{font-family:var(--disp);font-weight:800;font-size:26px;letter-spacing:-.035em;color:var(--ink)}
.brand .mark i{font-style:normal;color:var(--accent)}
.brand .tag{font-family:var(--sans);font-size:10px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);padding:4px 6px 3px}
.nav{display:flex;align-items:center;gap:27px}
.nav a{
  display:inline-block;padding:8px 0 7px;text-decoration:none;
  font-family:var(--sans);font-size:15.5px;font-weight:500;color:var(--ink);
  border-bottom:2px solid transparent;white-space:nowrap;
}
.nav a:hover{color:var(--accent)}
.nav a[aria-current="page"]{color:var(--accent);border-bottom-color:var(--accent)}
.burger{
  display:none;width:44px;height:40px;padding:0;background:transparent;border:1px solid var(--line);
  cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink)}
.burger[aria-expanded="true"]{border-color:var(--accent)}
.burger[aria-expanded="true"] span{background:var(--accent)}
.mpanel{display:none}

/* ---------- hero ---------- */
.hero{padding:56px 0 0}
.hero-in{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:60px;align-items:center}
.fig{margin:0}
.frame{position:relative}
.fig .lframe{
  position:absolute;left:-14px;bottom:-10px;width:68%;height:66%;
  border-left:4px solid var(--accent);border-bottom:4px solid var(--accent);
  pointer-events:none;z-index:2;
}
.browser{position:relative;z-index:1;background:var(--bg-deep);border:1px solid rgba(243,237,228,.2);overflow:hidden}
.bar{display:flex;align-items:center;gap:7px;height:36px;padding:0 12px;background:#212429;border-bottom:1px solid rgba(243,237,228,.12)}
.bar i{display:block;width:7px;height:7px;border-radius:50%;background:#464a51;flex:0 0 auto}
.bar .url{
  flex:1 1 auto;margin-left:7px;padding:4px 10px;background:#111316;border:1px solid rgba(243,237,228,.1);
  font-family:var(--sans);font-size:11.5px;line-height:1.4;color:#d4cec5;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.bar .url b{color:var(--accent);font-weight:600}
.browser img{display:block;width:100%;height:auto;aspect-ratio:712/492;object-fit:cover}
.figcap{margin:26px 0 0;font-size:12px;line-height:1.6;color:var(--muted);max-width:52ch}
.copy .kick{margin:0 0 16px;font-family:var(--sans);font-size:10.5px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;color:var(--accent)}
.copy h1{font-family:var(--disp);font-weight:700;font-size:clamp(38px,4.4vw,58px);line-height:.98;letter-spacing:-.035em;margin:0 0 20px;max-width:15ch}
.copy .lead{margin:0 0 16px;font-size:16.5px;line-height:1.66;color:var(--body);max-width:46ch}
.copy .lead strong{color:var(--ink);font-weight:600}
.meta{margin:0 0 26px;font-size:12.5px;line-height:1.6;color:var(--muted);letter-spacing:.01em}
.meta span{white-space:nowrap}
.acts{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 26px;
  background:var(--accent);color:var(--accent-ink);text-decoration:none;
  font-family:var(--sans);font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  border:1px solid var(--accent);
}
.btn:hover{background:#ff6537;color:var(--accent-ink)}
.acts .fine{font-size:12px;line-height:1.5;color:var(--muted);max-width:22ch}

/* ---------- tre colonne numerate ---------- */
.keys{margin-top:74px;border-top:1px solid var(--line);padding-top:30px}
.keys-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:44px}
.key .n{display:block;font-family:var(--disp);font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--accent)}
.key h2{font-family:var(--disp);font-weight:600;font-size:24px;line-height:1.08;letter-spacing:-.015em;margin:10px 0 9px}
.key p{margin:0;font-size:14.5px;line-height:1.7;color:var(--body)}
.key p b{color:var(--ink);font-weight:600}

/* ---------- tabella di confronto ---------- */
.cmp{margin-top:70px}
.cmp-head{display:flex;align-items:baseline;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:16px}
.cmp h2{font-family:var(--disp);font-weight:600;font-size:clamp(26px,3vw,36px);line-height:1.05;letter-spacing:-.02em;margin:0}
.cmp .hint{margin:0;font-size:12px;color:var(--muted)}
table{width:100%;border-collapse:collapse;table-layout:fixed}
caption{text-align:left;font-size:12px;color:var(--muted);padding:0 0 10px}
th,td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:14px 16px}
thead th{
  font-family:var(--sans);font-size:10.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);border-bottom:2px solid var(--accent);padding-bottom:10px;
}
tbody th{width:24%;font-weight:600;font-size:14px;color:var(--ink)}
tbody td{font-size:14px;line-height:1.6;color:var(--body)}
tbody td:nth-child(2){width:44%}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
tbody th span{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.02em;margin-top:3px}

/* ---------- partner ---------- */
.partners{margin-top:74px;border-top:1px solid var(--line);padding-top:30px}
.ph{display:flex;align-items:baseline;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:18px}
.partners h2{margin:0;font-family:var(--disp);font-weight:600;font-size:22px;letter-spacing:-.01em}
.ph p{margin:0;font-size:12px;color:var(--muted)}
.pgrid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.pcell{border:1px solid var(--line);background:var(--bg-soft);display:flex;align-items:center;justify-content:center;min-height:94px}
.pcell a{display:flex;align-items:center;justify-content:center;width:100%;height:100%;padding:14px 18px;text-decoration:none}
.pcell a:hover,.pcell a:focus-visible{border-color:var(--accent);background:#25282f}
.pcell img{display:block;height:60px;width:auto;max-width:100%;object-fit:contain}

/* ---------- blocco di chiusura ---------- */
.closing{margin-top:74px;border-top:1px solid var(--line);padding-top:30px}
.closing-in{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:56px}
.closing h2{font-family:var(--disp);font-weight:600;font-size:clamp(27px,3.2vw,38px);line-height:1.05;letter-spacing:-.025em;margin:0;max-width:14ch}
.closing-copy p{margin:0 0 14px;font-size:15px;line-height:1.72;color:var(--body)}
.closing-copy p:last-of-type{margin-bottom:0}
.facts{list-style:none;margin:20px 0 0;padding:0;border-top:1px solid var(--line)}
.facts li{padding:9px 0;border-bottom:1px solid var(--line-soft);font-size:13px;line-height:1.5;color:var(--body)}
.facts li b{color:var(--ink);font-weight:600}

/* ---------- pagine interne ---------- */
.page-head{padding:58px 0 34px;border-bottom:1px solid var(--line)}
.page-head .kick{margin:0 0 14px;font-size:10.5px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;color:var(--accent)}
.page-head h1{font-family:var(--disp);font-weight:700;font-size:clamp(34px,4.4vw,56px);line-height:.98;letter-spacing:-.035em;margin:0 0 18px;max-width:24ch}
.page-head .lead{margin:0;max-width:70ch;font-size:17px;line-height:1.66;color:var(--body)}
.crumb{margin:0 0 26px;font-size:11.5px;letter-spacing:.06em;color:var(--muted)}
.crumb a{text-decoration:none;color:var(--muted)}
.crumb a:hover{color:var(--accent)}
.crumb span{margin:0 7px;color:#5f5a54}
.body-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;padding:38px 0 0;align-items:start}
.prose{max-width:70ch;min-width:0}
.prose h2{font-family:var(--disp);font-weight:600;font-size:27px;line-height:1.1;letter-spacing:-.015em;margin:38px 0 11px}
.prose h2:first-child{margin-top:0}
.prose h3{font-family:var(--disp);font-weight:600;font-size:19px;line-height:1.2;margin:24px 0 7px}
.prose p{margin:0 0 15px;font-size:16px;line-height:1.75;color:var(--body)}
.prose b,.prose strong{color:var(--ink);font-weight:600}
.prose ul,.prose ol{margin:0 0 18px;padding-left:20px}
.prose li{font-size:15.5px;line-height:1.7;color:var(--body);margin-bottom:8px}
.prose li::marker{color:var(--accent)}
.prose a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--accent);padding-bottom:1px}
.prose a:hover{color:var(--accent)}
.note{border-left:3px solid var(--accent);padding:2px 0 2px 16px;margin:22px 0;font-size:15px;line-height:1.68;color:var(--body)}
.note b{display:block;font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:5px}
.pairs{margin:6px 0 20px;padding:0;border-top:1px solid var(--line)}
.pairs div{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:10px 0;border-bottom:1px solid var(--line-soft)}
.pairs dt{font-size:13.5px;color:var(--muted);margin:0}
.pairs dd{font-size:13.5px;color:var(--ink);margin:0;font-weight:600}
.pairs .phead{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:8px 0;border-bottom:1px solid var(--line)}
.pairs .phead span{font-size:10.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent)}
.qa{border-top:1px solid var(--line);margin:8px 0 0}
.qa details{border-bottom:1px solid var(--line)}
.qa summary{
  cursor:pointer;list-style:none;padding:18px 40px 18px 0;position:relative;
  font-family:var(--disp);font-weight:600;font-size:18.5px;line-height:1.3;color:var(--ink);
}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";position:absolute;right:2px;top:14px;font-family:var(--sans);font-weight:400;font-size:25px;color:var(--accent);line-height:1}
.qa details[open] summary::after{content:"\2212"}
.qa .a{padding:0 0 20px;font-size:15px;line-height:1.72;color:var(--body)}
.qa .a p{margin:0}
.aside{border-top:2px solid var(--accent);padding-top:16px;position:sticky;top:24px}
.aside h2{margin:0 0 10px;font-family:var(--sans);font-size:10.5px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--accent)}
.aside p{margin:0 0 12px;font-size:13px;line-height:1.65;color:var(--body)}
.aside ul{list-style:none;margin:0;padding:0}
.aside li{border-bottom:1px solid var(--line-soft);padding:8px 0;font-size:13px;line-height:1.5;color:var(--body)}
.aside li b{display:block;color:var(--ink);font-weight:600;font-size:13.5px}
.exit{margin-top:58px;border-top:1px solid var(--line);padding-top:26px;display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.exit p{margin:0;font-size:13.5px;line-height:1.6;color:var(--muted);max-width:52ch}

/* ---------- 404 ---------- */
.notfound{padding:80px 0 40px;max-width:760px}
.notfound .kick{margin:0 0 14px;font-size:10.5px;font-weight:600;letter-spacing:.24em;text-transform:uppercase;color:var(--accent)}
.notfound h1{font-family:var(--disp);font-weight:700;font-size:clamp(40px,6vw,72px);line-height:.95;letter-spacing:-.04em;margin:0 0 18px}
.notfound p{font-size:17px;line-height:1.7;color:var(--body);margin:0 0 26px;max-width:54ch}
.notfound ul{list-style:none;margin:0 0 34px;padding:0;border-top:1px solid var(--line);max-width:520px}
.notfound li{border-bottom:1px solid var(--line-soft)}
.notfound li a{display:block;padding:11px 0;text-decoration:none;font-size:15px;color:var(--ink)}
.notfound li a:hover{color:var(--accent)}

/* ---------- footer ---------- */
.foot{margin-top:76px;border-top:1px solid var(--line);padding:30px 0 44px}
.foot-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.foot-brand b{display:block;font-family:var(--disp);font-weight:700;font-size:15px;letter-spacing:-.01em;margin-bottom:6px}
.foot-brand p{margin:0;font-size:12px;line-height:1.6;color:var(--muted);max-width:38ch}
.foot-nav{display:flex;gap:22px;flex-wrap:wrap}
.foot-nav a{font-size:13px;text-decoration:none;color:var(--body)}
.foot-nav a:hover{color:var(--accent)}
.foot-legal{margin:24px 0 0;padding-top:16px;border-top:1px solid var(--line-soft);font-size:11px;line-height:1.7;color:var(--muted)}
.foot-legal .rta{display:inline-block;border:1px solid var(--line);padding:2px 6px;margin-left:6px;font-size:10px;letter-spacing:.08em;color:var(--body)}

/* ---------- adattamenti ---------- */
@media (max-width:1080px){
  .hero-in{gap:44px}
  .copy h1{font-size:clamp(36px,4.2vw,48px)}
  .nav{gap:20px}
  .nav a{font-size:15px}
  .body-grid{grid-template-columns:minmax(0,1fr) 260px;gap:40px}
}
@media (max-width:900px){
  .wrap{width:min(1200px,calc(100% - 44px))}
  .hero{padding-top:38px}
  .keys-grid{gap:30px}
  .key h2{font-size:21px}
  .closing-in{grid-template-columns:1fr;gap:26px}
  .body-grid{grid-template-columns:1fr;gap:0}
  .aside{position:static;margin-top:38px}
}
@media (min-width:701px) and (max-width:900px){
  .hero-in{grid-template-columns:1fr 1fr;gap:36px}
  .copy h1{font-size:34px;max-width:13ch;margin-bottom:14px}
  .copy .lead{font-size:14.5px;line-height:1.6;margin-bottom:12px}
  .copy .kick{margin-bottom:12px}
  .meta{font-size:11px;margin-bottom:18px}
  .acts{gap:12px}
  .btn{min-height:46px;padding:0 18px;font-size:11px}
  .acts .fine{font-size:11px;max-width:18ch}
  .figcap{font-size:11px}
}
@media (max-width:700px){
  .hero-in{grid-template-columns:1fr;gap:34px}
  .copy{order:1}
  .fig{order:2}
  .copy h1{max-width:18ch}
  .copy .lead{max-width:60ch}
}
@media (max-width:640px){
  body{font-size:16px}
  .wrap{width:calc(100% - 36px)}
  .top-in{min-height:64px;gap:14px}
  .brand .mark{font-size:23px}
  .brand .tag{font-size:9px;padding:3px 5px}
  .nav{display:none}
  .burger{display:flex}
  .mpanel{
    position:absolute;left:0;right:0;top:100%;z-index:60;background:#15171b;
    border-bottom:1px solid var(--accent);padding:6px 18px 12px;
  }
  .mpanel.open{display:block}
  .mpanel a{
    display:block;padding:11px 2px;text-decoration:none;font-size:17px;line-height:1.3;
    color:var(--ink);border-bottom:1px solid var(--line-soft);
  }
  .mpanel a:last-child{border-bottom:0}
  .mpanel a[aria-current="page"]{color:var(--accent)}
  .hero{padding-top:30px}
  .copy .kick{margin-bottom:12px;font-size:10px}
  .copy h1{font-size:clamp(32px,9vw,40px);margin-bottom:14px;max-width:100%}
  .copy .lead{font-size:15.5px;line-height:1.6;margin-bottom:14px}
  .meta{font-size:11.5px;margin-bottom:20px}
  .acts{gap:14px}
  .btn{min-height:48px;padding:0 22px;font-size:12px}
  .acts .fine{max-width:26ch;font-size:11.5px}
  .browser img{height:250px;object-fit:cover;object-position:top center}
  .bar{height:32px}
  .bar .url{font-size:10.5px;padding:3px 8px}
  .fig .lframe{left:-9px;bottom:-8px;border-left-width:3px;border-bottom-width:3px;width:64%;height:60%}
  .figcap{font-size:11px;max-width:100%}
  .keys{margin-top:52px;padding-top:24px}
  .keys-grid{grid-template-columns:1fr;gap:26px}
  .key{padding-bottom:22px;border-bottom:1px solid var(--line-soft)}
  .key:last-child{border-bottom:0;padding-bottom:0}
  .key h2{font-size:22px}
  .cmp{margin-top:52px}
  .cmp-head{margin-bottom:12px}
  th,td{padding:10px 8px}
  thead th{font-size:9.5px;letter-spacing:.1em}
  tbody th{width:30%;font-size:12.5px}
  tbody td{font-size:12.5px;line-height:1.5}
  tbody td:nth-child(2){width:38%}
  .partners{margin-top:54px}
  .partners h2{font-size:20px}
  .pgrid{gap:8px}
  .pcell{min-height:72px}
  .pcell a{padding:8px}
  .pcell img{height:44px}
  .closing{margin-top:54px}
  .closing h2{font-size:29px;max-width:100%}
  .page-head{padding:36px 0 26px}
  .page-head h1{font-size:clamp(31px,8.6vw,40px)}
  .page-head .lead{font-size:15.5px}
  .prose h2{font-size:23px;margin-top:30px}
  .prose p{font-size:15.5px;line-height:1.68}
  .prose li{font-size:15px}
  .pairs div{grid-template-columns:1fr;gap:3px}
  .qa summary{font-size:17px}
  .notfound{padding:52px 0 30px}
  .exit{margin-top:44px}
  .foot-top{gap:22px}
}
@media (max-width:380px){
  .brand .tag{display:none}
  .pcell img{height:40px}
}