/* FStudio — nero e viola, come l'app */
:root {
  --bg: #0b0b10;
  --bg2: #0e0e14;
  --card: #13131a;
  --card2: #1a1a24;
  --line: #262631;
  --line2: #2e2e3a;
  --text: #f4f4f8;
  --muted: #8b8b9a;
  --dim: #55556a;
  --accent: #7c5cff;
  --accent-h: #6a48f5;
  --accent-soft: #1c1a33;
  --accent-text: #c4b5fd;
  --ok: #34d399;
  --err: #f43f5e;
  --warn: #f59e0b;
  --radius: 16px;
  --font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text); font: 15px/1.6 var(--font);
  min-height: 100vh; display: flex; flex-direction: column;
  background-image: radial-gradient(900px 420px at 80% -10%, rgba(124, 92, 255, .16), transparent 60%),
                    radial-gradient(700px 360px at -10% 20%, rgba(124, 92, 255, .08), transparent 60%);
  background-repeat: no-repeat;
}
a { color: var(--accent-text); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; }
h2 { font-size: 1.6rem; font-weight: 700; }
h3 { font-size: 1.05rem; font-weight: 700; }
p { margin: 0 0 1em; }
.muted { color: var(--muted); }
.dim { color: var(--dim); }
.small { font-size: .85rem; }
.center { text-align: center; }
.mono { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; }
.container { width: min(1120px, 100% - 40px); margin-inline: auto; }
.narrow { width: min(460px, 100% - 40px); margin-inline: auto; }
.mid { width: min(760px, 100% - 40px); margin-inline: auto; }
main { flex: 1; padding: 36px 0 64px; }
.mt1 { margin-top: 8px; } .mt2 { margin-top: 16px; } .mt3 { margin-top: 28px; } .mt4 { margin-top: 44px; }
.mb0 { margin-bottom: 0; } .mb2 { margin-bottom: 16px; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.grow { flex: 1; min-width: 0; }
.hide { display: none; }

/* header */
.site-header { position: sticky; top: 0; z-index: 20; backdrop-filter: blur(14px); background: rgba(11, 11, 16, .78); border-bottom: 1px solid var(--line); }
.site-header .bar { display: flex; align-items: center; gap: 24px; height: 66px; }
.brand { display: flex; align-items: center; gap: 11px; color: var(--text); font-weight: 800; font-size: 1.15rem; }
.brand:hover { text-decoration: none; }
.logo { width: 36px; height: 36px; border-radius: 11px; background: var(--accent); display: grid; place-items: center; font-weight: 800; color: #fff; font-size: 1.2rem; box-shadow: 0 6px 24px rgba(124, 92, 255, .45); }
nav#nav { display: flex; gap: 6px; align-items: center; margin-left: auto; }
nav#nav a, nav#nav button.linklike { color: var(--muted); padding: 8px 14px; border-radius: 10px; font-weight: 600; font-size: .92rem; }
nav#nav a:hover, nav#nav button.linklike:hover { color: var(--text); background: var(--card2); text-decoration: none; }
nav#nav a.active { color: #fff; background: var(--accent-soft); }
#nav-toggle { display: none; margin-left: auto; }
button.linklike { background: none; border: 0; cursor: pointer; font-family: inherit; }

/* bottoni */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; cursor: pointer; font: 700 .95rem var(--font); padding: 12px 22px; border-radius: 13px; background: var(--accent); color: #fff; transition: background .15s, transform .05s, border-color .15s; }
.btn:hover { background: var(--accent-h); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.soft { background: var(--accent-soft); color: var(--accent-text); }
.btn.soft:hover { background: #262248; }
.btn.ghost { background: transparent; border: 1px solid var(--line2); color: #b4b4c2; }
.btn.ghost:hover { background: var(--card2); }
.btn.danger { background: #2a1620; color: var(--err); }
.btn.danger:hover { background: #3d1b2b; }
.btn.big { padding: 15px 30px; font-size: 1.02rem; border-radius: 15px; }
.btn.small { padding: 7px 13px; font-size: .82rem; border-radius: 10px; }
.btn.block { width: 100%; }

/* card & form */
.card { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 28px; }
.card + .card { margin-top: 16px; }
.card h2 { font-size: 1.25rem; }
label { display: block; font-weight: 600; font-size: .88rem; margin: 16px 0 6px; color: #b4b4c2; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=search], textarea, select {
  width: 100%; background: var(--bg); color: var(--text); border: 1px solid var(--line2); border-radius: 13px; padding: 13px 15px; font: 15px var(--font); outline: none; transition: border-color .15s, box-shadow .15s;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(124, 92, 255, .22); }
input[type=file] { width: 100%; color: var(--muted); font: 14px var(--font); }
input[type=checkbox] { accent-color: var(--accent); width: 17px; height: 17px; vertical-align: -3px; margin-right: 8px; }
.check { display: flex; gap: 6px; align-items: flex-start; font-weight: 500; color: var(--muted); margin-top: 18px; }
.check input { margin-top: 3px; flex: none; }
.hint { color: var(--dim); font-size: .82rem; margin-top: 5px; }
.codeinput { text-align: center; font: 700 1.6rem ui-monospace, Consolas, monospace; letter-spacing: .35em; padding: 14px; }
form .btn { margin-top: 22px; }
form.inline .btn, form.inline { margin-top: 0; display: inline; }

/* alert */
.alert { padding: 13px 16px; border-radius: 13px; margin-bottom: 14px; border: 1px solid; font-size: .93rem; }
.alert.ok { background: rgba(52, 211, 153, .08); border-color: rgba(52, 211, 153, .3); color: #a7f3d0; }
.alert.err { background: rgba(244, 63, 94, .08); border-color: rgba(244, 63, 94, .3); color: #fda4af; }
.alert.warn { background: rgba(245, 158, 11, .08); border-color: rgba(245, 158, 11, .3); color: #fcd34d; }
.alert ul { margin: 0; padding-left: 18px; }

/* badge */
.badge { display: inline-block; padding: 3px 10px; border-radius: 8px; font-size: .72rem; font-weight: 800; letter-spacing: .04em; background: var(--line); color: #b4b4c2; text-transform: uppercase; }
.badge.accent { background: var(--accent); color: #fff; }
.badge.ok { background: rgba(52, 211, 153, .15); color: var(--ok); }
.badge.err { background: rgba(244, 63, 94, .15); color: var(--err); }
.badge.warn { background: rgba(245, 158, 11, .15); color: var(--warn); }

/* hero */
.hero { padding: 40px 0 20px; display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.hero .eyebrow { display: inline-flex; gap: 8px; align-items: center; background: var(--accent-soft); color: var(--accent-text); padding: 6px 14px; border-radius: 999px; font-weight: 700; font-size: .8rem; margin-bottom: 20px; }
.hero h1 .grad { background: linear-gradient(120deg, #a78bfa, #7c5cff 55%, #5b8cff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: 1.12rem; color: var(--muted); max-width: 520px; }
.shot { border: 1px solid var(--line2); border-radius: 18px; overflow: hidden; box-shadow: 0 30px 80px rgba(124, 92, 255, .22), 0 0 0 1px rgba(255, 255, 255, .03) inset; background: var(--card); }
.shot img { display: block; width: 100%; height: auto; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.feat { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 24px; transition: border-color .2s, transform .2s; }
.feat:hover { border-color: #3a3560; transform: translateY(-2px); }
.feat .ico { width: 42px; height: 42px; border-radius: 12px; background: var(--accent-soft); color: var(--accent-text); display: grid; place-items: center; font-size: 1.2rem; margin-bottom: 14px; }
.feat p { color: var(--muted); font-size: .92rem; margin: 0; }
.cta { background: linear-gradient(135deg, #1c1a33, #13131a); border: 1px solid #2e2a55; border-radius: 24px; padding: 44px; text-align: center; }

/* 2FA */
.qrbox { width: 220px; height: 220px; background: #fff; border-radius: 16px; padding: 6px; margin: 8px auto 4px; display: grid; place-items: center; }
.qrbox svg { width: 100%; height: 100%; display: block; }
.secret { background: var(--bg); border: 1px dashed var(--line2); border-radius: 12px; padding: 12px; text-align: center; font: 600 1rem ui-monospace, Consolas, monospace; letter-spacing: .12em; word-break: break-all; }
.codes { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 18px 0; }
.codes div { background: var(--bg); border: 1px solid var(--line2); border-radius: 11px; padding: 11px; text-align: center; font: 700 1.05rem ui-monospace, Consolas, monospace; letter-spacing: .1em; }
.steps { counter-reset: s; padding: 0; list-style: none; }
.steps li { counter-increment: s; position: relative; padding-left: 40px; margin-bottom: 14px; color: var(--muted); }
.steps li::before { content: counter(s); position: absolute; left: 0; top: -1px; width: 27px; height: 27px; border-radius: 50%; background: var(--accent-soft); color: var(--accent-text); display: grid; place-items: center; font-weight: 800; font-size: .85rem; }

/* tabelle */
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--card); }
table { width: 100%; border-collapse: collapse; font-size: .88rem; }
th { text-align: left; color: var(--dim); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; padding: 13px 16px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
tr:hover td { background: rgba(255, 255, 255, .015); }
.stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.stat b { display: block; font-size: 1.9rem; letter-spacing: -.02em; }
.stat span { color: var(--muted); font-size: .8rem; font-weight: 600; }
.subnav { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 22px; }
.subnav a { padding: 8px 15px; border-radius: 10px; color: var(--muted); font-weight: 600; font-size: .9rem; border: 1px solid var(--line); }
.subnav a:hover { text-decoration: none; background: var(--card2); color: var(--text); }
.subnav a.active { background: var(--accent-soft); color: #fff; border-color: #3a3560; }
.keybox { background: var(--bg); border: 1px solid var(--line2); border-radius: 12px; padding: 14px; font: 700 1rem ui-monospace, Consolas, monospace; letter-spacing: .06em; line-height: 1.9; }
.lic { background: var(--bg); border: 1px solid var(--line); border-radius: 16px; padding: 18px; margin-top: 12px; }
.lic .k { font: 700 1.05rem ui-monospace, Consolas, monospace; letter-spacing: .06em; }
.dev { display: flex; justify-content: space-between; gap: 12px; align-items: center; padding: 9px 0; border-top: 1px solid var(--line); font-size: .88rem; }

/* footer */
.site-footer { border-top: 1px solid var(--line); background: var(--bg2); padding: 36px 0 28px; }
.foot { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.foot h4 { margin: 0 0 12px; font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--dim); }
.foot a { display: block; color: var(--muted); padding: 3px 0; font-size: .92rem; }
.foot a:hover { color: var(--text); text-decoration: none; }
.copy { border-top: 1px solid var(--line); margin-top: 26px; padding-top: 18px; color: var(--dim); font-size: .82rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* testo legale */
.prose h2 { margin-top: 1.8em; font-size: 1.2rem; }
.prose h3 { margin-top: 1.2em; }
.prose p, .prose li { color: #c9c9d6; }
.prose ul { padding-left: 22px; }
.prose .box { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; margin: 16px 0; }

@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; gap: 28px; }
  .grid3, .grid2, .stats, .foot { grid-template-columns: 1fr 1fr; }
  #nav-toggle { display: inline-flex; }
  nav#nav { display: none; position: absolute; top: 66px; left: 0; right: 0; flex-direction: column; align-items: stretch; background: var(--bg2); padding: 12px 20px 18px; border-bottom: 1px solid var(--line); margin: 0; }
  nav#nav.open { display: flex; }
}
@media (max-width: 560px) {
  .grid3, .grid2, .stats, .foot { grid-template-columns: 1fr; }
  .card { padding: 22px; }
  .cta { padding: 28px 20px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }
.row.jc { justify-content: center; }
.h-sm { font-size: 2rem; }
.small-select { width: auto; padding: 7px 10px; border-radius: 10px; font-size: .82rem; }
nav#nav a.btn { color: #fff; padding: 8px 16px; }
nav#nav a.btn:hover { background: var(--accent-h); }
.foot a.brand { display: flex; color: var(--text); padding: 0; font-size: 1.15rem; }
.container > h1, .mid > h1 { font-size: 2rem; margin-bottom: .6em; }
input[type=file]::file-selector-button { background: var(--accent-soft); color: var(--accent-text); border: 0; border-radius: 10px; padding: 9px 14px; margin-right: 12px; font: 700 .85rem var(--font); cursor: pointer; }
input[type=file]::file-selector-button:hover { background: #262248; }