/* =========================================================
   KikaiJoy — design system
   Base condivisa: pagine legali, grazie, 404
   ========================================================= */

:root{
  /* superfici */
  --bg:#FFFFFF;
  --surface:#F6F6F8;
  --surface-2:#F0F0F3;
  --ink-panel:#0A0A0B;

  /* testo */
  --ink:#0A0A0B;
  --ink-2:#3A3A40;
  --muted:#6E6E76;
  --on-dark:#FFFFFF;
  --on-dark-mut:#A3A3AD;

  /* accento */
  --accent:#5B2AF5;
  --accent-hover:#4A1FD6;
  --accent-soft:#F1ECFF;
  --accent-line:rgba(91,42,245,.22);

  /* linee */
  --line:rgba(10,10,11,.10);
  --line-2:rgba(10,10,11,.16);
  --line-dark:rgba(255,255,255,.12);

  /* forma */
  --r-sm:12px;
  --r:18px;
  --r-lg:26px;
  --r-xl:36px;
  --pill:999px;

  /* ombre — molto discrete, stile Apple */
  --sh-sm:0 1px 2px rgba(10,10,11,.04), 0 4px 14px -8px rgba(10,10,11,.10);
  --sh-md:0 2px 6px rgba(10,10,11,.04), 0 24px 50px -28px rgba(10,10,11,.22);
  --sh-accent:0 14px 34px -14px rgba(91,42,245,.55);

  /* misure */
  --container:1120px;
  --nav-h:66px;
  --ease:cubic-bezier(.22,1,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

body{
  font-family:'Inter','SF Pro Text',-apple-system,BlinkMacSystemFont,system-ui,'Segoe UI',sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:17px;
  line-height:1.65;
  letter-spacing:-.011em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

h1,h2,h3,h4,h5{
  font-family:'Inter Tight','Inter',-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  font-weight:600;
  line-height:1.08;
  letter-spacing:-.035em;
  color:var(--ink);
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--accent);color:#fff}

:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:6px;
}

.wrap{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:24px}

/* ---------- bottoni ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:'Inter',sans-serif;font-size:.95rem;font-weight:550;
  letter-spacing:-.012em;
  padding:13px 24px;border-radius:var(--pill);border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background .35s var(--ease),color .35s var(--ease),
             border-color .35s var(--ease),transform .35s var(--ease),
             box-shadow .35s var(--ease);
}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-accent)}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#25252B;transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-light:hover{border-color:var(--line-2);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--surface);border-color:var(--line-2)}
.btn-lg{padding:16px 30px;font-size:1rem}

/* ---------- nav condivisa ---------- */
.nav{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.78);
  backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid transparent;
  transition:border-color .4s var(--ease),background .4s var(--ease);
}
.nav.scrolled{border-bottom-color:var(--line);background:rgba(255,255,255,.9)}
.nav-inner{
  max-width:var(--container);margin-inline:auto;padding:0 24px;
  height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-family:'Inter Tight',sans-serif;font-weight:600;font-size:1.06rem;letter-spacing:-.03em;
}

/* ---------- footer condiviso ---------- */
.foot{border-top:1px solid var(--line);margin-top:0;background:var(--bg)}
.foot-in{
  max-width:var(--container);margin-inline:auto;padding:64px 24px 40px;
  display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:44px 32px;
}
.foot-about{color:var(--muted);font-size:.94rem;max-width:34ch;margin-top:16px}
.foot h5{
  font-family:'Inter',sans-serif;font-size:.78rem;font-weight:600;
  letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:16px;
}
.foot-col a{
  display:block;color:var(--ink-2);font-size:.95rem;padding:5px 0;
  transition:color .3s var(--ease);
}
.foot-col a:hover{color:var(--accent)}
.foot-bottom{
  max-width:var(--container);margin-inline:auto;padding:22px 24px 40px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px 26px;justify-content:space-between;align-items:center;
  color:var(--muted);font-size:.86rem;
}
.foot-legal-note{max-width:60ch}
@media (max-width:820px){
  .foot-in{grid-template-columns:1fr 1fr;gap:36px 24px}
  .foot-brand{grid-column:1/-1}
}

/* ---------- pagine documento (legali) ---------- */
.doc{max-width:760px;margin-inline:auto;padding:clamp(56px,9vw,104px) 24px clamp(64px,9vw,110px)}
.doc-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.78rem;font-weight:550;letter-spacing:.08em;text-transform:uppercase;
  color:var(--accent);background:var(--accent-soft);
  padding:7px 14px;border-radius:var(--pill);margin-bottom:22px;
}
.doc h1{font-size:clamp(2.1rem,5.2vw,3.1rem);margin-bottom:14px}
.doc .updated{color:var(--muted);font-size:.92rem;margin-bottom:40px}
.doc h2{
  font-size:clamp(1.25rem,2.4vw,1.5rem);margin:44px 0 12px;
  padding-top:26px;border-top:1px solid var(--line);
}
.doc h2:first-of-type{border-top:none;padding-top:0}
.doc h3{font-size:1.06rem;margin:26px 0 8px}
.doc p{color:var(--ink-2);margin-bottom:14px;font-size:1rem}
.doc ul,.doc ol{color:var(--ink-2);margin:0 0 16px 20px;font-size:1rem}
.doc li{margin-bottom:7px}
.doc a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.doc strong{color:var(--ink);font-weight:600}
.doc table{width:100%;border-collapse:collapse;margin:18px 0 24px;font-size:.94rem}
.doc th,.doc td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top;color:var(--ink-2)}
.doc th{color:var(--ink);font-weight:600;background:var(--surface)}
.doc-note{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:20px 22px;margin:24px 0;font-size:.95rem;color:var(--ink-2);
}
.doc-note strong{display:block;margin-bottom:6px;color:var(--ink)}
.ph{background:#FFF3C4;border-bottom:1px dashed #C79A00;padding:0 3px;border-radius:3px;color:#5A4600;font-weight:500}
.doc-toc{
  background:var(--surface);border-radius:var(--r);padding:22px 26px;margin-bottom:44px;
}
.doc-toc h5{
  font-family:'Inter',sans-serif;font-size:.76rem;letter-spacing:.07em;text-transform:uppercase;
  color:var(--muted);font-weight:600;margin-bottom:12px;
}
.doc-toc a{display:block;padding:4px 0;color:var(--ink-2);font-size:.95rem;text-decoration:none}
.doc-toc a:hover{color:var(--accent)}
.back{
  display:flex;width:max-content;align-items:center;gap:8px;color:var(--muted);font-size:.92rem;
  margin-bottom:30px;transition:color .3s var(--ease);
}
.back:hover{color:var(--ink)}

/* ---------- cookie banner ---------- */
.cookiebar{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:200;
  max-width:560px;margin-inline:auto;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-md);padding:22px 24px;
  display:none;gap:16px;flex-direction:column;
  animation:cb-in .5s var(--ease) both;
}
.cookiebar.show{display:flex}
@keyframes cb-in{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.cookiebar p{font-size:.9rem;color:var(--ink-2);line-height:1.55}
.cookiebar p a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.cookiebar .cb-actions{display:flex;gap:10px;flex-wrap:wrap}
.cookiebar .btn{padding:11px 20px;font-size:.9rem}

/* ---------- reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
[data-reveal].in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){[data-reveal]{opacity:1;transform:none}}