/* =========================================================================
   Cristiano Silvi — sito statico
   Palette "carta + giallo + inchiostro", ombre nette, grana editoriale.
   ========================================================================= */

:root{
  --paper:#F3EAD6;
  --paper-2:#FBF7EC;
  --paper-3:#EFE3CB;
  --ink:#23201A;
  --ink-soft:#5E5544;
  --ink-faint:#8C8270;
  --yellow:#F4C21A;
  --yellow-deep:#E2A400;
  --line:rgba(35,32,26,.14);
  --line-strong:rgba(35,32,26,.28);
  --r:18px;
  --maxw:1180px;
  --cover-h:clamp(170px,24vw,250px);
  --display:"Archivo","Helvetica Neue",Helvetica,Arial,sans-serif;
  --hand:"Caveat",ui-rounded,cursive;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html,body{margin:0;padding:0;}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--display);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:var(--yellow);color:var(--ink);}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
img{display:block;max-width:100%;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.02;text-wrap:balance;}
p{margin:0;text-wrap:pretty;}

/* paper grain overlay */
.grain::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:1;
  opacity:.5;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
}

/* ---- shared bits ---- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}
.section{padding:clamp(34px,5vw,60px) 28px;}
.eyebrow{font-family:var(--hand);font-weight:700;font-size:24px;color:var(--yellow-deep);line-height:1;margin-bottom:6px;}
.kicker{font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:14px;}

.pill{
  display:inline-flex;align-items:center;gap:.5em;font-size:13px;font-weight:700;
  letter-spacing:.03em;text-transform:uppercase;padding:7px 14px;border-radius:999px;
  border:1.5px solid var(--ink);background:var(--paper-2);white-space:nowrap;
}
.pill.on-dark{background:transparent;border-color:rgba(255,255,255,.5);color:var(--paper);}

.btn{
  display:inline-flex;align-items:center;gap:.55em;font-weight:800;font-size:16px;
  padding:14px 24px;border-radius:999px;background:var(--yellow);color:var(--ink);
  border:2px solid var(--ink);box-shadow:3px 3px 0 var(--ink);
  transition:transform .12s ease, box-shadow .12s ease;letter-spacing:-.01em;
}
.btn:hover{transform:translate(-1px,-1px);box-shadow:5px 5px 0 var(--ink);}
.btn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ink);}
.btn.ghost{background:transparent;box-shadow:none;}
.btn.ghost:hover{background:var(--paper-2);transform:none;}
.btn.ghost.on-dark{color:var(--paper);border-color:rgba(255,255,255,.5);}
.btn.ghost.on-dark:hover{background:rgba(255,255,255,.08);}
.btn.lg{font-size:18px;padding:17px 30px;}

/* reveal-on-scroll */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s cubic-bezier(.2,.7,.2,1);}
.reveal.seen{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
}

/* ---- wordmark ---- */
.wordmark{
  font-family:var(--hand);font-weight:700;font-size:28px;line-height:.92;
  color:var(--ink);white-space:nowrap;
}
.wordmark.on-dark{color:var(--paper);font-size:30px;}

/* =========================== HEADER =========================== */
.site-header{
  position:sticky;top:0;z-index:40;
  background:color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter:blur(10px);border-bottom:1.5px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 28px;}
.main-nav{display:flex;align-items:center;gap:4px;}
.main-nav a{padding:9px 14px;border-radius:999px;font-size:15px;font-weight:700;color:var(--ink-soft);transition:background .15s, color .15s;}
.main-nav a:hover{background:var(--yellow);color:var(--ink);}
.header-actions{display:flex;align-items:center;gap:12px;}

.lang-switch{display:flex;gap:2px;border:1.5px solid var(--ink);border-radius:999px;padding:3px;}
.lang-switch button{
  padding:4px 10px;border-radius:999px;font-size:12.5px;font-weight:800;letter-spacing:.05em;
  text-transform:uppercase;color:var(--ink);transition:background .15s, color .15s;
}
.lang-switch button.is-active{background:var(--ink);color:var(--paper);}

.nav-cta{padding:10px 18px;font-size:14.5px;box-shadow:2px 2px 0 var(--ink);}

.menu-btn{display:none;width:42px;height:42px;border-radius:12px;border:2px solid var(--ink);place-items:center;}
/* icona menu: linee quando chiuso, X quando aperto */
.menu-btn .ic-close{display:none;}
.menu-btn.open .ic-menu{display:none;}
.menu-btn.open .ic-close{display:block;}

.mobile-menu{border-top:1.5px solid var(--line);padding:10px 28px 18px;}
.mobile-menu a{display:block;width:100%;text-align:left;padding:12px 6px;font-size:18px;font-weight:700;color:var(--ink);border-bottom:1px solid var(--line);}

/* =========================== HERO =========================== */
.hero{position:relative;background:var(--ink);color:var(--paper);overflow:hidden;}
.hero-inner{padding:clamp(54px,9vw,116px) 28px clamp(40px,6vw,72px);max-width:920px;margin-inline:auto;}
.hero h1{font-size:clamp(44px,7.2vw,92px);line-height:.98;}
.hero h1 .accent{color:var(--yellow);}
.hero-sub{margin-top:26px;font-size:clamp(18px,2.1vw,22px);line-height:1.55;color:rgba(255,255,255,.78);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-divider{display:block;width:100%;height:48px;}

/* =========================== CARDS (cosa faccio) =========================== */
.heading{max-width:680px;}
.heading h2{font-size:clamp(30px,4.4vw,52px);}
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px;}
.card{
  height:100%;background:var(--paper-2);border:2px solid var(--ink);border-radius:20px;
  padding:26px 24px 28px;box-shadow:6px 7px 0 var(--ink);
}
.card-ic{
  width:50px;height:50px;display:grid;place-items:center;border-radius:14px;
  background:var(--yellow);border:2px solid var(--ink);
}
.card h3{font-size:26px;margin-top:18px;}
.card p{margin-top:11px;font-size:16px;line-height:1.55;color:var(--ink-soft);}

/* ---- card blog (accento giallo) ---- */
.blog-card{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  margin-top:20px;background:var(--yellow);color:var(--ink);
  border:2px solid var(--ink);border-radius:20px;
  padding:clamp(22px,3vw,32px) clamp(24px,3.4vw,36px);box-shadow:6px 7px 0 var(--ink);
  transition:transform .14s ease, box-shadow .14s ease;
}
.blog-card:hover{transform:translate(-1px,-1px);box-shadow:8px 9px 0 var(--ink);}
.blog-card-text{min-width:0;}
.blog-card .pill{background:rgba(255,255,255,.4);border-color:var(--ink);color:var(--ink);}
.blog-card h3{font-size:clamp(24px,3vw,32px);margin-top:13px;}
.blog-card p{margin-top:9px;font-size:17px;line-height:1.5;color:rgba(35,32,26,.82);max-width:540px;}
.blog-cta{flex-shrink:0;}
.btn.ink{background:var(--ink);color:var(--paper);border-color:var(--ink);}

/* =========================== LIBRI =========================== */
.books-card{
  background:var(--ink);color:var(--paper);border:2px solid var(--ink);border-radius:28px;
  padding:clamp(28px,4vw,52px);box-shadow:8px 10px 0 var(--ink);
  display:flex;flex-direction:column;gap:clamp(26px,4vw,44px);overflow:hidden;
}
.books-text{max-width:620px;}
.books-text h2{font-size:clamp(28px,3.6vw,46px);margin-top:16px;}
.books-text p{margin-top:16px;font-size:17.5px;line-height:1.55;color:rgba(255,255,255,.78);max-width:520px;}
.books-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* ---- slider copertine (scorre da solo + frecce manuali) ---- */
.books-slider-wrap{
  position:relative;
  /* sfonda fino ai bordi della card per un effetto "scaffale" a tutta larghezza */
  margin:0 calc(-1 * clamp(28px,4vw,52px)) calc(-1 * clamp(28px,4vw,52px));
}
.books-slider{
  overflow-x:auto;overflow-y:hidden;
  padding:6px 0 clamp(28px,4vw,52px);
  scrollbar-width:none;                 /* Firefox: nasconde la barra */
  /* dissolvenza ai due lati */
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
}
.books-slider::-webkit-scrollbar{display:none;}
.books-track{
  display:flex;align-items:flex-end;gap:18px;width:max-content;
  padding:0 clamp(28px,4vw,52px);
}
.book-cover{flex:0 0 auto;display:block;border-radius:11px;}
.book-cover img{
  height:var(--cover-h);width:auto;border-radius:11px;
  border:2px solid var(--paper);box-shadow:4px 5px 0 rgba(0,0,0,.45);
  transition:transform .2s ease, box-shadow .2s ease;
}
.book-cover:hover img,
.book-cover:focus-visible img{transform:translateY(-6px);box-shadow:6px 8px 0 var(--yellow-deep);}
.book-cover:focus-visible{outline:none;}

/* frecce di navigazione */
.slider-arrow{
  position:absolute;top:calc(6px + var(--cover-h) / 2);transform:translateY(-50%);
  width:46px;height:46px;border-radius:999px;z-index:3;
  background:var(--yellow);border:2px solid var(--ink);color:var(--ink);
  display:grid;place-items:center;box-shadow:2px 2px 0 var(--ink);
  transition:transform .12s ease, box-shadow .12s ease;
}
.slider-arrow:hover{transform:translateY(-50%) translate(-1px,-1px);box-shadow:4px 4px 0 var(--ink);}
.slider-arrow:active{transform:translateY(-50%) translate(1px,1px);box-shadow:1px 1px 0 var(--ink);}
.slider-arrow.prev{left:14px;}
.slider-arrow.next{right:14px;}

/* =========================== BIO =========================== */
.bio-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,5vw,60px);align-items:center;}
.bio-photo{width:100%;aspect-ratio:4 / 5;object-fit:cover;border:2px solid var(--ink);border-radius:24px;box-shadow:8px 10px 0 var(--ink);}
.bio-body{margin-top:18px;font-size:18px;line-height:1.6;color:var(--ink-soft);max-width:540px;}
.bio-quote{margin-top:22px;font-family:var(--hand);font-weight:700;font-size:28px;color:var(--yellow-deep);line-height:1.1;}

/* =========================== CONTATTI =========================== */
.contact-card{
  background:var(--paper-2);border:2px solid var(--ink);border-radius:28px;
  padding:clamp(28px,4vw,52px);box-shadow:8px 10px 0 var(--ink);
  display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(26px,4vw,52px);align-items:center;
}
.contact-text h2{font-size:clamp(28px,3.6vw,46px);margin-top:6px;}
.contact-text > p{margin-top:16px;font-size:17.5px;line-height:1.55;color:var(--ink-soft);max-width:460px;}
.contact-text .socials{margin-top:26px;}
.contact-links{display:flex;flex-direction:column;gap:12px;}
.chat{
  display:flex;align-items:center;gap:12px;font-weight:700;font-size:16px;
  padding:13px 16px;border:2px solid var(--ink);border-radius:14px;background:var(--paper);
  transition:transform .14s ease, box-shadow .14s ease;
}
.chat:hover{transform:translateY(-2px);box-shadow:4px 5px 0 var(--ink);}
.chat-label{min-width:0;overflow-wrap:anywhere;}
.chat-arr{margin-left:auto;flex-shrink:0;color:var(--ink-faint);}
.chat-ic{
  width:38px;height:38px;flex-shrink:0;border-radius:999px;background:var(--yellow);
  border:2px solid var(--ink);display:grid;place-items:center;
}

/* ---- social row ---- */
.socials{display:flex;gap:10px;flex-wrap:wrap;}
.socials a{
  width:40px;height:40px;display:grid;place-items:center;border-radius:999px;
  border:1.5px solid var(--ink);color:var(--ink);
  transition:background .15s, color .15s, transform .15s;
}
.socials a:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px);}
.socials.on-dark a{border-color:rgba(255,255,255,.4);color:#fff;}
.socials.on-dark a:hover{background:#fff;color:var(--ink);}

/* =========================== FOOTER =========================== */
.site-footer{background:var(--ink);color:var(--paper);margin-top:20px;}
.footer-grid{
  display:flex;flex-wrap:wrap;gap:30px;justify-content:space-between;align-items:flex-start;
  padding:clamp(40px,5vw,60px) 28px 28px;
}
.footer-about{max-width:340px;}
.footer-about p{margin-top:16px;font-size:15.5px;line-height:1.55;color:rgba(255,255,255,.7);}
.footer-about .socials{margin-top:20px;}
.footer-nav{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.footer-nav a{font-size:15.5px;color:rgba(255,255,255,.82);font-weight:600;}
.footer-nav a:hover{color:var(--yellow);}
.footer-email{font-size:15.5px;color:rgba(255,255,255,.82);font-weight:600;}
.footer-email:hover{color:var(--yellow);}
.footer-bottom{padding:20px 28px 28px;font-size:13.5px;color:rgba(255,255,255,.55);border-top:1px solid rgba(255,255,255,.15);margin-top:18px;}

/* scrollbar */
::-webkit-scrollbar{width:11px;height:11px;}
::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:999px;border:3px solid var(--paper);}

/* =========================== RESPONSIVE =========================== */
@media (max-width:900px){
  .main-nav{display:none;}
  .nav-cta{display:none;}
  .menu-btn{display:grid;}
}
@media (min-width:901px){
  .mobile-menu{display:none !important;}
}
@media (max-width:820px){
  /* minmax(0,1fr) evita il "grid blowout": la colonna può restringersi
     sotto il min-content dei titoli, così i contenuti restano nella card */
  .cards-3{grid-template-columns:minmax(0,1fr);}
  .bio-grid{grid-template-columns:minmax(0,1fr);}
  .contact-card{grid-template-columns:minmax(0,1fr);}
  /* su mobile il footer mostra solo brand + social */
  .footer-col{display:none;}
}