/* ------------------------------------------------------------------
   base.css - fondamenta condivise da TUTTE le pagine di rilevo.net:
   token del tema scuro, reset, tipografia, bottoni, barra di
   navigazione e footer. Ogni pagina carica questo file per primo e
   poi il proprio foglio specifico (home.css, pages.css, account.css).
------------------------------------------------------------------ */

/* ============================ TOKEN ============================ */
:root{
  --bg:#070a12;            /* fondo pagina */
  --bg-2:#0a0e18;          /* fondo fasce alternate */
  --card:#0d121c;          /* superficie carte */
  --card-2:#111827;        /* superficie carte interne */
  --tile:#141b29;          /* mini tessere */
  --line:rgba(255,255,255,.07);
  --line-2:rgba(255,255,255,.12);
  --text:#f3f5f9;
  --text-2:#d5dae6;
  --muted:#9aa3b8;
  --faint:#667087;
  --violet:#8b5cf6;
  --blue:#3b82f6;
  --link:#5b8cff;
  --green:#22c55e;
  --grad:linear-gradient(135deg,#8b5cf6 0%,#3b82f6 100%);
  --r-card:18px;
  --wrap:1200px;
}

/* ============================ BASE ============================ */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);color:var(--text);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  line-height:1.5;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
/* Gli elementi nascosti da JS (bottoni sessione, viste account) devono restare nascosti
   anche quando la regola di layout imposta un display */
[hidden]{display:none!important}
img,svg{display:block;max-width:100%}
button{font:inherit;cursor:pointer}
.i{width:1em;height:1em;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 40px}
:focus-visible{outline:2px solid #8fb4ff;outline-offset:3px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.eyebrow{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:14px}
h1,h2{letter-spacing:-.025em;line-height:1.1;font-weight:700}
h2{font-size:28px;letter-spacing:-.03em}
.lead{color:var(--muted);font-size:17px;line-height:1.6}
.link{color:var(--link);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:10px}
.link .i{width:15px;height:15px}
.link:hover{color:#8fb4ff}

/* Comparsa progressiva dei blocchi (attiva solo con JS abilitato) */
.js-enabled [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.js-enabled [data-reveal].is-visible{opacity:1;transform:none}

/* ============================ BOTTONI ============================ */
.btn{display:inline-flex;align-items:center;gap:10px;font-weight:600;font-size:14px;border-radius:10px;padding:12px 18px;border:1px solid transparent;transition:transform .15s ease,box-shadow .15s ease,filter .15s ease,background .15s ease;white-space:nowrap}
.btn .i{width:16px;height:16px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(99,102,241,.35),inset 0 1px 0 rgba(255,255,255,.25)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-ghost{background:rgba(139,92,246,.06);border-color:rgba(139,92,246,.55);color:#fff}
.btn-ghost:hover{background:rgba(139,92,246,.14)}
.btn-sm{padding:9px 16px;font-size:13px;border-radius:9px}
.btn-outline{background:rgba(59,130,246,.08);border-color:rgba(59,130,246,.55);color:#9ec1ff;padding:9px 16px;font-size:13px;border-radius:9px}
.btn-outline:hover{background:rgba(59,130,246,.16)}

/* ============================ NAV ============================ */
.nav{position:sticky;top:0;z-index:50;background:rgba(7,10,18,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;height:64px;gap:28px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.1em;font-size:17px}
.brand img{width:30px;height:30px}
.nav-links{display:flex;gap:28px;margin-left:16px;font-size:13.5px;color:#cbd2e0;font-weight:500}
.nav-links a:hover{color:#fff}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:18px;font-size:13.5px;font-weight:500;color:#cbd2e0}
.nav-right>a:hover{color:#fff}

/* Selettore lingua IT/EN */
.lang{display:inline-flex;align-items:center;gap:2px;padding:3px;border:1px solid var(--line-2);border-radius:9px;background:rgba(255,255,255,.04)}
.lang a{padding:4px 9px;border-radius:6px;font-size:12px;font-weight:600;color:#aeb8cb;line-height:1.2}
.lang a.active,.lang a:hover{background:#fff;color:#08101d}


/* Alias dei nomi token usati dai fogli piu vecchi (area account):
   puntano agli stessi colori del tema scuro, cosi non restano pagine chiare. */
:root{
  color-scheme:dark;
  --ink:#f3f5f9;
  --ink-2:#e3e8f2;
  --soft:#7d879b;
  --paper:#070a12;
  --paper-2:#0b101c;
  --white:#0d121c;
  --line-strong:rgba(255,255,255,.18);
  --signal:#35d69a;
  --sky:#62a4ff;
  --purple:#8c6cff;
  --cyan:#20d9f2;
  --amber:#f59e0b;
  --danger:#f87171;
  --shadow:0 28px 80px rgba(0,0,0,.45);
  --radius:12px;
  --radius-sm:8px;
  --max:1200px;
  --sans:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'SFMono-Regular','JetBrains Mono',Consolas,monospace;
}

/* .container e .wrap sono lo stesso contenitore: il markup piu vecchio usa .container */
.container{max-width:var(--wrap);margin:0 auto;padding:0 40px}
/* .icon e la classe usata dal markup con sprite esterno, .i da quello inline */
.icon{width:1em;height:1em;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;display:block}
code,.mono{font-family:var(--mono);font-size:.92em}

/* Varianti di bottone usate fuori dalla home */
.btn-secondary{background:rgba(255,255,255,.05);border-color:var(--line-2);color:#e7ebf5}
.btn-secondary:hover{background:rgba(255,255,255,.1)}
.btn-quiet{background:transparent;border-color:transparent;color:#cbd2e0;padding:10px 12px}
.btn-quiet:hover{color:#fff;background:rgba(255,255,255,.06)}
.btn[aria-disabled="true"]{opacity:.55;cursor:default;filter:none;transform:none}

/* Occhielli e testi ricorrenti */
.kicker{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:14px}
.microcopy{display:flex;gap:12px;flex-wrap:wrap;font-size:12.5px;color:var(--faint);margin-top:18px}
.microcopy span+span::before{content:"\00b7";margin-right:12px}
.page-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}

/* ============================ FOOTER ============================ */
.footer{border-top:1px solid var(--line);padding:26px 0}
.footer .wrap{display:flex;align-items:center;gap:24px;font-size:13px;color:var(--faint);flex-wrap:wrap}
.footer .brand{font-size:14px}
.footer .brand img{width:22px;height:22px}
.footer nav{display:flex;gap:20px;margin-left:auto;flex-wrap:wrap}
.footer nav a:hover{color:#fff}

/* ============================ RESPONSIVE CONDIVISO ============================ */
@media (max-width:960px){
  .nav-links{display:none}
}
@media (max-width:680px){
  .wrap,.container{padding:0 20px}
  /* Su schermo stretto la barra tiene solo lingua e download: l'area account resta nel footer */
  .nav-right{gap:10px}
  .nav-right>a:not(.btn){display:none}
  .nav .wrap{gap:12px;height:60px}
  .brand{font-size:15px}
  .brand img{width:26px;height:26px}
  .btn-sm{padding:8px 12px;font-size:12.5px;gap:7px}
}