/* ------------------------------------------------------
   Pacesoft — Vcard Premium UI
   - look moderno, sofisticato, responsive
   - dark/light automatico
   - zero dipendenze
------------------------------------------------------- */

/* ====== Palette & base ====== */
:root{
  --bg: #0b0e14;
  --bg-soft: #0e131b;
  --bg-elev: #121826;
  --text: #e9edf6;
  --muted: #9aa4b2;
  --brand: #6ea8fe;
  --brand-600:#3d8bfd;
  --brand-700:#2f6cdf;
  --ok:#18c796;
  --warn:#ffcc66;
  --danger:#ff6b6b;
  --border: #1e2637;
  --ring: 0 0 0 8px rgba(61,139,253,.15);
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 16px;
  --radius-lg: 22px;
}

@media (prefers-color-scheme: light){
  :root{
    --bg:#f7f9fc;
    --bg-soft:#ffffff;
    --bg-elev:#ffffff;
    --text:#0b1220;
    --muted:#64748b;
    --brand:#2563eb;
    --brand-600:#1e40af;
    --brand-700:#1e3a8a;
    --ok:#10b981;
    --warn:#f59e0b;
    --danger:#ef4444;
    --border:#e5e7eb;
    --ring: 0 0 0 8px rgba(37,99,235,.14);
    --shadow: 0 14px 38px rgba(2,6,23,.08);
  }
}

/* ====== Resets ====== */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; color:var(--text); background:
    radial-gradient(1200px 700px at -10% -20%, rgba(61,139,253,.18), transparent 50%),
    radial-gradient(1000px 600px at 110% 0%, rgba(24,199,150,.14), transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial;
  line-height:1.55;
}

/* ====== Layout & containers ====== */
.container{max-width:1040px;margin:28px auto;padding:0 18px}
.header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:saturate(160%) blur(10px);
  background:color-mix(in oklab, var(--bg-elev) 86%, transparent);
  border-bottom:1px solid var(--border);
}
.brandbar{
  display:flex;align-items:center;gap:12px;padding:12px 18px;
}
.brandbar .logo{
  width:28px;height:28px;border-radius:8px;object-fit:cover;object-position:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-700));
  box-shadow:var(--shadow);
}
.brandbar .title{font-weight:800;letter-spacing:.2px}

/* ====== Navbar ====== */
.nav{display:flex;gap:10px;flex-wrap:wrap;padding:6px 18px 16px}
.nav a{
  color:var(--text);text-decoration:none;font-weight:600;
  padding:9px 12px;border-radius:12px;border:1px solid var(--border);
  background:color-mix(in oklab, var(--bg-elev) 88%, transparent);
  transition:transform .06s ease, box-shadow .18s ease, border-color .18s ease;
}
.nav a:hover{border-color:var(--brand);box-shadow:var(--ring)}
.nav a:active{transform:translateY(1px)}

/* ====== Typography ====== */
h1{font-size:clamp(26px,4.6vw,44px);margin:16px 0 8px;line-height:1.08}
h2{font-size:clamp(18px,2.6vw,22px);margin:16px 0 10px;color:var(--muted);font-weight:800;text-transform:none;letter-spacing:.2px}
h3{margin:10px 0 8px;font-size:18px}
p{margin:10px 0}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

/* ====== Cards & grid ====== */
.card{
  background:var(--bg-elev); border:1px solid var(--border);
  border-radius:var(--radius-lg); padding:20px; box-shadow:var(--shadow);
}
.grid{display:grid;gap:16px}
@media(min-width:760px){.grid.cols-2{grid-template-columns:1fr 1fr}.grid.cols-3{grid-template-columns:repeat(3,1fr)}}

/* ====== Buttons ====== */
button,.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:11px 16px;border-radius:14px;border:1px solid transparent;
  background:var(--brand);color:#fff;font-weight:800;cursor:pointer;
  transition:transform .06s ease, box-shadow .18s ease, background .2s ease;
  box-shadow:var(--shadow);
}
button:hover,.btn:hover{background:var(--brand-600)}
button:active,.btn:active{transform:translateY(1px)}
.btn.secondary{background:transparent;color:var(--text);border-color:var(--border)}
.btn.ok{background:var(--ok)}
.btn.danger{background:var(--danger)}

/* ====== Forms ====== */
form{display:grid;gap:12px}
.form-row{display:grid;gap:6px}
label{font-weight:700;color:var(--muted)}
input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=file]):not([type=submit]),
textarea,select{
  width:100%;padding:12px 14px;border-radius:14px;
  border:1px solid var(--border);background:var(--bg-soft);color:var(--text);
  transition:border-color .18s ease, box-shadow .18s ease, transform .04s;
}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--brand);box-shadow:var(--ring)}

/* ====== Alerts ====== */
.error,.notice{
  border-radius:14px;padding:12px 14px;border:1px solid;
  background:color-mix(in oklab,var(--bg-elev),transparent 10%);
}
.error{border-color:color-mix(in oklab,var(--danger),#000 12%);color:var(--danger)}
.notice{border-color:color-mix(in oklab,var(--ok),#000 12%);color:var(--ok)}

/* ====== Tables ====== */
.table{
  width:100%;border-collapse:collapse;border:1px solid var(--border);
  background:var(--bg-elev);border-radius:14px;overflow:hidden;
}
.table th,.table td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left}
.table th{color:var(--muted);font-weight:800;background:color-mix(in oklab,var(--bg-elev),transparent 26%)}
.table tr:hover td{background:color-mix(in oklab,var(--bg-elev),transparent 14%)}

/* ====== Media & QR ====== */
.avatar{width:128px;height:128px;object-fit:cover;object-position:center;border:1px solid var(--border);border-radius:18px;background:var(--bg-soft)}
#qrcode{display:inline-flex;align-items:center;justify-content:center;padding:14px;border-radius:16px;border:1px solid var(--border);background:var(--bg-elev);box-shadow:var(--shadow)}
#qrcode svg{display:block}

/* ====== Link blocks (URL, vCard) ====== */
.linkblock{
  display:flex;align-items:center;gap:8px;padding:10px 12px;border:1px dashed var(--border);
  border-radius:12px;background:var(--bg-elev);overflow:hidden
}
.linkblock code{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ====== FAQ accordion ====== */
details{
  border:1px solid var(--border);border-radius:16px;background:var(--bg-elev);
  padding:12px 14px;transition:background .2s ease, border-color .2s ease;
}
details[open]{background:color-mix(in oklab,var(--bg-elev),transparent 10%);border-color:color-mix(in oklab,var(--brand),var(--border))}
summary{cursor:pointer;font-weight:800;list-style:none;outline:none}
summary::-webkit-details-marker{display:none}
.q{display:flex;align-items:center;gap:8px}
.dot{width:10px;height:10px;border-radius:50%;background:var(--brand)}

/* ====== Hero helpers (home/premium) ====== */
.hero{
  border-radius:22px;padding:32px 26px;overflow:hidden;border:1px solid var(--border);
  background:
    radial-gradient(1100px 620px at -10% -10%, rgba(61,139,253,.18), transparent 55%),
    radial-gradient(1000px 580px at 115% 10%, rgba(24,199,150,.14), transparent 55%),
    linear-gradient(135deg, color-mix(in oklab,var(--brand) 18%,var(--bg-elev)), var(--bg-elev));
  box-shadow:var(--shadow);
}
.hero .headline{font-size:clamp(28px,5vw,46px);line-height:1.05;margin:8px 0 6px}
.hero .sub{color:var(--text);opacity:.92;font-size:clamp(15px,2vw,18px);margin:0}
.hero-grid{display:grid;gap:24px;align-items:center}
@media(min-width:900px){.hero-grid{grid-template-columns:1.25fr .95fr}}
.logo-hero{
  width:72px;height:72px;border-radius:16px;object-fit:cover;object-position:center;
  border:2px solid color-mix(in oklab,var(--brand) 40%, var(--border));box-shadow:var(--shadow);background:#fff;
}
.pill{
  display:inline-block;padding:6px 10px;border-radius:999px;background:color-mix(in oklab,var(--brand) 18%, var(--bg-elev));
  border:1px solid var(--border);color:#fff;font-weight:800;font-size:12px;letter-spacing:.3px
}
.phone-mock{
  border:1px solid var(--border);border-radius:22px;background:var(--bg-elev);
  padding:18px;width:min(360px,100%);margin:0 auto;box-shadow:var(--shadow)
}
.phone-screen{border:1px solid var(--border);border-radius:18px;background:var(--bg-soft);padding:16px}

/* ====== Animations ====== */
.fade-in{animation:fade .28s ease-out}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ====== Utilities ====== */
.center{display:grid;place-items:center}
.mt-1{margin-top:8px}.mt-2{margin-top:14px}.mt-3{margin-top:20px}
.mb-1{margin-bottom:8px}.mb-2{margin-bottom:14px}.mb-3{margin-bottom:20px}
.w-full{width:100%}
.muted{color:var(--muted)}