/* ===========================================================
   Andrea Boccardi — sito unico (Studio + Autore)
   Stile: moderno, caldo
   =========================================================== */

:root{
  --cream:#faf5ee;
  --ink:#22201d;
  --ink-soft:#4a453f;
  --muted:#8a8177;
  --line:#e7ddcf;

  --amber:#c97b2c;
  --amber-dark:#a85f18;
  --terra:#b5502e;

  --studio-blue:#0d17b8;   /* dal logo */
  --studio-blue-dark:#0a1180;

  --autore-glow:#e08a3c;

  --radius:16px;
  --shadow:0 10px 40px rgba(60,40,20,.10);
  --shadow-soft:0 4px 18px rgba(60,40,20,.08);
  --maxw:1080px;
  --font: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  --serif: "Georgia", "Times New Roman", serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--cream);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-sm{padding:44px 0}

h1,h2,h3{line-height:1.2;letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.3rem);font-weight:800}
h2{font-size:clamp(1.5rem,3.2vw,2.1rem);font-weight:800;margin-bottom:8px}
h3{font-size:1.15rem;font-weight:700}
p{color:var(--ink-soft)}
.lead{font-size:1.15rem;color:var(--ink-soft)}
.eyebrow{
  text-transform:uppercase;letter-spacing:.16em;font-size:.78rem;
  font-weight:700;color:var(--amber-dark);margin-bottom:10px;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:13px 24px;border-radius:999px;font-weight:700;font-size:.98rem;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
  cursor:pointer;border:2px solid transparent;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--amber);color:#fff;box-shadow:var(--shadow-soft)}
.btn-primary:hover{background:var(--amber-dark)}
.btn-ghost{background:transparent;border-color:currentColor;color:var(--ink)}
.btn-ghost:hover{background:rgba(0,0,0,.04)}
.btn-blue{background:var(--studio-blue);color:#fff}
.btn-blue:hover{background:var(--studio-blue-dark)}
.btn-light{background:#fff;color:var(--ink)}

/* ---------- Top nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(250,245,238,.85);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav .container{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800}
.brand img{height:34px;width:auto}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{font-weight:600;color:var(--ink-soft);font-size:.95rem}
.nav-links a:hover{color:var(--ink)}
.nav-links a.cta{color:var(--amber-dark)}

/* ---------- Footer ---------- */
.footer{background:var(--ink);color:#cfc7bc;padding:40px 0;font-size:.92rem}
.footer a{color:#e8ddcf}
.footer .container{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center}
.footer .muted{color:#9a9082;font-size:.82rem}

/* ===========================================================
   HOME — bivio
   =========================================================== */
.home{min-height:100vh;display:flex;flex-direction:column;background:
   radial-gradient(1200px 600px at 20% -10%, #fff 0%, var(--cream) 55%);}
.home-hero{text-align:center;padding:64px 24px 24px}
.home-hero .logo{height:96px;margin:0 auto 18px}
.home-hero h1{margin-bottom:6px}
.home-hero .sub{color:var(--muted);font-size:1.05rem}

.gates{
  flex:1;display:grid;grid-template-columns:1fr 1fr;gap:24px;
  max-width:1000px;margin:24px auto 56px;padding:0 24px;width:100%;
}
.gate{
  position:relative;border-radius:22px;overflow:hidden;min-height:340px;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:32px;color:#fff;box-shadow:var(--shadow);
  transition:transform .2s ease, box-shadow .2s ease;
}
.gate:hover{transform:translateY(-4px);box-shadow:0 18px 50px rgba(60,40,20,.18)}
.gate::after{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(0,0,0,.05) 0%,rgba(0,0,0,.72) 100%)}
.gate>*{position:relative;z-index:2}
.gate .k{text-transform:uppercase;letter-spacing:.16em;font-size:.75rem;font-weight:700;opacity:.9}
.gate h2{color:#fff;margin:6px 0 6px}
.gate p{color:rgba(255,255,255,.9);margin-bottom:18px}
.gate .go{display:inline-flex;align-items:center;gap:.5rem;font-weight:700}

.gate-studio{background:linear-gradient(135deg,#12208f,#0a0f4d)}
.gate-studio .logo-badge{
  position:absolute;top:26px;left:26px;z-index:2;height:64px;
  background:#fff;border-radius:14px;padding:8px;box-shadow:var(--shadow-soft)
}
.gate-autore{background:#1c1220}
.gate-autore::before{content:"";position:absolute;inset:0;z-index:0;
  background:url("img/autore.png") center/cover no-repeat}

@media(max-width:760px){
  .gates{grid-template-columns:1fr}
  .gate{min-height:280px}
}

/* ===========================================================
   HERO interni
   =========================================================== */
.hero{padding:84px 0 56px}
.hero .grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-studio{background:linear-gradient(135deg,#eef1ff 0%, var(--cream) 60%)}
.hero-autore{background:linear-gradient(135deg,#2a1a2e 0%, #14121f 100%);color:#f4ece2}
.hero-autore h1,.hero-autore h2{color:#fff}
.hero-autore p{color:#d9cfc4}
.hero-autore .eyebrow{color:var(--autore-glow)}
.hero-portrait{border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
@media(max-width:820px){.hero .grid{grid-template-columns:1fr;gap:28px}}

/* ---------- Cards / grid ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media(max-width:820px){.grid-3{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.grid-3,.grid-2{grid-template-columns:1fr}}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-soft);
  transition:transform .15s ease, box-shadow .15s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card .ico{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  background:#eef1ff;color:var(--studio-blue);margin-bottom:14px;font-size:1.3rem
}
.card h3{margin-bottom:6px}
.card p{font-size:.96rem}

/* ---------- Info / contatti ---------- */
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow-soft)
}
.info-row{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line)}
.info-row:last-child{border-bottom:none}
.info-row .lab{min-width:120px;font-weight:700;color:var(--ink)}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.badge{background:#eef1ff;color:var(--studio-blue-dark);border-radius:999px;
  padding:7px 14px;font-size:.85rem;font-weight:700}

.center{text-align:center}
.mt-s{margin-top:14px}.mt-m{margin-top:26px}.mt-l{margin-top:42px}
.actions{display:flex;flex-wrap:wrap;gap:14px}
.actions.center{justify-content:center}

/* ---------- Book ---------- */
.book{display:grid;grid-template-columns:200px 1fr;gap:28px;align-items:start}
.book .cover{border-radius:12px;overflow:hidden;box-shadow:var(--shadow);
  background:#241a2c;min-height:280px;display:grid;place-items:center;color:#caa4c0;
  text-align:center;padding:20px;font-weight:700}
@media(max-width:560px){.book{grid-template-columns:1fr}}

.placeholder{
  border:1px dashed var(--amber);background:#fff7ee;color:var(--amber-dark);
  border-radius:12px;padding:14px 16px;font-size:.9rem;font-weight:600
}

/* ---------- Shop / catalogo libri ---------- */
.shop{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:860px){.shop{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.shop{grid-template-columns:1fr}}
.bookcard{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-soft);display:flex;flex-direction:column;
  transition:transform .15s ease, box-shadow .15s ease;position:relative
}
.bookcard:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.bookcard .cov{aspect-ratio:3/4;background:#241a2c;display:block;overflow:hidden}
.bookcard .cov img{width:100%;height:100%;object-fit:cover}
.bookcard .body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.bookcard .meta{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-weight:700}
.bookcard h3{margin:6px 0 8px;font-size:1.08rem}
.bookcard p{font-size:.92rem;flex:1}
.bookcard .price{font-weight:800;color:var(--amber-dark);margin:10px 0 12px;font-size:1.05rem}
.bookcard .btn{width:100%;justify-content:center}
.ribbon{position:absolute;top:14px;right:-34px;transform:rotate(45deg);
  background:var(--terra);color:#fff;font-size:.72rem;font-weight:800;
  letter-spacing:.08em;padding:6px 40px;box-shadow:var(--shadow-soft);z-index:2}
.bookcard.soon .cov{display:grid;place-items:center;color:#caa4c0;text-align:center;padding:18px;font-weight:700}
.free{color:#1a7a3c!important}
.btn-free{background:#1a7a3c;color:#fff}
.btn-free:hover{background:#15602f}
.btn-disabled{background:#e7ddcf;color:#8a8177;cursor:default;pointer-events:none}