/* =========================================================
   exlibris.fun — design system
   Un solo foglio di stile. Nessun build, nessuna dipendenza.
   Tre temi (bianco / nero / azzurro) su variabili CSS:
   cambiare tema = cambiare un attributo su <html>, zero re-render.
   ========================================================= */

/* ---------- font ---------- */
@font-face{font-family:Metropolis;src:url(fonts/metropolis-400.woff2) format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:Metropolis;src:url(fonts/metropolis-500.woff2) format('woff2');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:Metropolis;src:url(fonts/metropolis-600.woff2) format('woff2');font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:Metropolis;src:url(fonts/metropolis-700.woff2) format('woff2');font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:Metropolis;src:url(fonts/metropolis-800.woff2) format('woff2');font-weight:800;font-style:normal;font-display:swap}
/* fallback con metriche corrette: il testo non "salta" quando arriva Metropolis */
@font-face{font-family:'Metropolis Fallback';src:local('Arial'),local('Helvetica'),local('Liberation Sans');
  size-adjust:97%;ascent-override:95%;descent-override:24%;line-gap-override:0%}

/* ---------- temi ---------- */
:root{
  --blue:#266eed;
  --r:12px; --r-sm:9px; --r-lg:18px;
  --pad:clamp(16px,3.6vw,44px);
  --maxw:1260px;
  --gap:clamp(14px,1.6vw,22px);
  --shelf-h:clamp(132px,15.5vw,224px);
  --cell-min:clamp(112px,13vw,190px);
  --ease:cubic-bezier(.22,.68,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --dur:.24s;
  color-scheme:light;
}

/* bianco */
html[data-theme=light]{
  --bg:#FBFAF7; --bg-2:#F3F1EA; --surface:#FFFFFF;
  --ink:#15150F; --ink-2:#66655C; --ink-3:#96948A;
  --line:#E7E3D8; --line-2:#D5D0C1;
  --accent:#266eed; --accent-fg:#FFFFFF; --accent-soft:#E8F0FE;
  --shelf:#DCD5C4; --shelf-edge:#C7BEA8;
  --spine-txt:rgba(255,255,255,.9);
  --scrim:rgba(21,21,15,.38);
  --tip-bg:#15150F; --tip-fg:#FBFAF7;
  --map-empty:#DFD9C8; --map-line:#FFFFFF; --cell-bg:#EDEAE0;
  --shadow:0 1px 2px rgba(21,21,15,.05),0 8px 24px -12px rgba(21,21,15,.18);
  --shadow-lg:0 24px 60px -20px rgba(21,21,15,.3);
  --s0:#B23F2C; --s1:#C2762F; --s2:#B99327; --s3:#5F7F42;
  --s4:#26756A; --s5:#2A5A99; --s6:#57478A; --s7:#A03F63;
  --s8:#7A362F; --s9:#3C4147; --s10:#83745B; --s11:#232326;
  color-scheme:light;
}
/* nero */
html[data-theme=dark]{
  --bg:#0B0B0C; --bg-2:#141416; --surface:#141416;
  --ink:#F2F1EB; --ink-2:#9E9C94; --ink-3:#6C6A64;
  --line:#242427; --line-2:#35353A;
  --accent:#5C94FF; --accent-fg:#07070A; --accent-soft:#152341;
  --shelf:#2A2A2E; --shelf-edge:#3A3A40;
  --spine-txt:rgba(255,255,255,.9);
  --scrim:rgba(0,0,0,.66);
  --tip-bg:#F2F1EB; --tip-fg:#0B0B0C;
  --map-empty:#2C2C31; --map-line:#0B0B0C; --cell-bg:#26262A;
  --shadow:0 1px 2px rgba(0,0,0,.5),0 10px 28px -14px rgba(0,0,0,.8);
  --shadow-lg:0 26px 64px -22px rgba(0,0,0,.9);
  --s0:#C24C36; --s1:#CE8339; --s2:#C7A031; --s3:#6C8F4B;
  --s4:#2C8478; --s5:#3468AE; --s6:#63529B; --s7:#B14A70;
  --s8:#8B4038; --s9:#4A5058; --s10:#93836A; --s11:#5A5A62;
  color-scheme:dark;
}
/* azzurro */
html[data-theme=blue]{
  --bg:#266eed; --bg-2:#1E5ED4; --surface:#1D5DD3;
  --ink:#FFFFFF; --ink-2:rgba(255,255,255,.76); --ink-3:rgba(255,255,255,.56);
  --line:rgba(255,255,255,.22); --line-2:rgba(255,255,255,.34);
  --accent:#FFFFFF; --accent-fg:#1B4FB8; --accent-soft:rgba(255,255,255,.16);
  --shelf:rgba(255,255,255,.34); --shelf-edge:rgba(255,255,255,.5);
  --spine-txt:rgba(12,32,74,.86);
  --scrim:rgba(9,29,74,.6);
  --tip-bg:#0C224F; --tip-fg:#FFFFFF;
  --map-empty:rgba(255,255,255,.16); --map-line:#266eed; --cell-bg:#1650BE;
  --shadow:0 1px 2px rgba(6,22,58,.24),0 10px 30px -14px rgba(6,22,58,.6);
  --shadow-lg:0 26px 64px -22px rgba(6,22,58,.7);
  --s0:#FF6F4B; --s1:#FFA22E; --s2:#FFD245; --s3:#4FD08A;
  --s4:#16C4BD; --s5:#7FB0FF; --s6:#B287FF; --s7:#FF6F9E;
  --s8:#FF8A5C; --s9:#D9E2EC; --s10:#E4BE72; --s11:#FFFFFF;
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scrollbar-gutter:stable;-webkit-tap-highlight-color:transparent}
html,body{min-height:100%}
body{
  font-family:Metropolis,'Metropolis Fallback',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:var(--bg);color:var(--ink);
  font-size:clamp(14.5px,.86rem + .18vw,16.5px);line-height:1.5;font-weight:400;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  letter-spacing:-.006em;
  overflow-x:hidden;
}
html.theming,html.theming body,html.theming *{transition:background-color .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),fill .3s var(--ease)!important}
/* su iPhone il dito che indugia su un dorso apriva il menu "copia/condividi" e
   il trascinamento moriva lì: sui comandi niente selezione né callout. */
button,.spine,.tdot,.bar-col,.mini-cell{-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;letter-spacing:inherit}
input,textarea,select{font:inherit;color:inherit;letter-spacing:inherit}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:var(--accent);color:var(--accent-fg)}

/* ---------- tipografia ---------- */
.display{font-weight:800;letter-spacing:-.035em;line-height:1.02}
.h1{font-size:clamp(28px,2.1vw + 20px,44px);font-weight:800;letter-spacing:-.035em;line-height:1.05}
.h2{font-size:clamp(19px,.7vw + 16px,25px);font-weight:800;letter-spacing:-.03em;line-height:1.12}
.eyebrow{font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3)}
.muted{color:var(--ink-2)}
.tiny{font-size:12.5px;color:var(--ink-3);line-height:1.45}
.num{font-variant-numeric:tabular-nums}

/* ---------- layout ---------- */
#app{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
main{flex:1 0 auto;padding-bottom:clamp(60px,7vw,110px)}
.section{padding-top:clamp(30px,4vw,58px)}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}

/* ---------- topbar ---------- */
.topbar{
  position:sticky;top:0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-block:clamp(10px,1.3vw,16px);
  background:var(--bg);
  background:color-mix(in srgb,var(--bg) 86%,transparent);
  backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);
  border-bottom:1px solid transparent;transition:border-color var(--dur) var(--ease);
}
.topbar.scrolled{border-bottom-color:var(--line)}
.topbar-in{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
.brand{display:block;flex:0 0 auto;cursor:pointer;background:none;border:0;padding:0;line-height:0}
.logo{
  display:block;width:auto;height:clamp(28px,2.4vw,36px);aspect-ratio:981/454;
  background-color:currentColor;
  -webkit-mask:url(../logo.svg) no-repeat center/contain;
  mask:url(../logo.svg) no-repeat center/contain;
  transition:transform .4s var(--ease-out),opacity var(--dur) var(--ease);
}
.brand:hover .logo{transform:rotate(-1.6deg) scale(1.03)}
.topbar-right{display:flex;align-items:center;gap:clamp(8px,1vw,14px)}

/* pallini tema */
.themes{display:flex;align-items:center;gap:7px;padding:5px 7px;border:1px solid var(--line);border-radius:999px}
.tdot{
  width:15px;height:15px;border-radius:50%;position:relative;display:block;
  border:1px solid var(--line-2);transition:transform .22s var(--ease-out),box-shadow .22s var(--ease);
}
.tdot[data-t=light]{background:#FBFAF7}
.tdot[data-t=dark]{background:#111114}
.tdot[data-t=blue]{background:#266eed;border-color:#266eed}
.tdot:hover{transform:scale(1.22)}
.tdot[aria-pressed=true]{box-shadow:0 0 0 2px var(--bg),0 0 0 3.5px var(--ink)}
.tdot[aria-pressed=true]:hover{transform:scale(1.1)}

.iconbtn{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--ink-2);
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform .2s var(--ease-out),background var(--dur);
}
.iconbtn:hover{color:var(--ink);border-color:var(--ink-3);transform:translateY(-1px)}
.iconbtn.on{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.avatar-img{width:34px;height:34px;border-radius:50%;object-fit:cover;display:block}

/* ---------- bottoni ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
  border:1px solid var(--line-2);padding:9px 17px;border-radius:999px;
  font-size:13.5px;font-weight:600;letter-spacing:-.01em;white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),transform .18s var(--ease-out),box-shadow var(--dur);
}
.btn:hover{border-color:var(--ink);transform:translateY(-1px)}
.btn:active{transform:translateY(0) scale(.985)}
.btn-primary{background:var(--accent);color:var(--accent-fg);border-color:var(--accent);box-shadow:var(--shadow)}
.btn-primary:hover{filter:brightness(1.06);border-color:var(--accent)}
.btn-ghost{border-color:transparent;color:var(--ink-2);padding-inline:12px}
.btn-ghost:hover{color:var(--ink);background:var(--bg-2);border-color:transparent}
.btn-sm{padding:6px 13px;font-size:12.5px}
.btn-danger:hover{border-color:#C2503C;color:#C2503C}
.link{
  color:var(--ink-2);text-decoration:none;cursor:pointer;font-weight:500;
  box-shadow:inset 0 -1px 0 var(--line-2);transition:color var(--dur),box-shadow var(--dur);
}
.link:hover{color:var(--ink);box-shadow:inset 0 -1px 0 var(--ink)}

/* ---------- campi ---------- */
.field{
  width:100%;border:1px solid var(--line-2);border-radius:var(--r-sm);
  padding:10px 13px;font-size:14px;background:var(--surface);color:var(--ink);
  outline:none;transition:border-color var(--dur),box-shadow var(--dur),background var(--dur);
}
.field::placeholder{color:var(--ink-3)}
.field:hover{border-color:var(--ink-3)}
.field:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
select.field{cursor:pointer;appearance:none;padding-right:32px;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'><path d='M2 4l3 3 3-3' fill='none' stroke='%23999' stroke-width='1.4' stroke-linecap='round'/></svg>");
  background-repeat:no-repeat;background-position:right 11px center}
textarea.field{min-height:84px;resize:vertical}
.search-field{position:relative;display:flex;align-items:center;flex:1;min-width:0}
.search-field .field{padding-left:38px}
.search-field svg{position:absolute;left:13px;color:var(--ink-3);pointer-events:none}
.search-clear{position:absolute;right:8px;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;color:var(--ink-3)}
.search-clear:hover{background:var(--bg-2);color:var(--ink)}

/* ---------- home ---------- */
.hero{
  padding-top:clamp(26px,5vw,64px);padding-bottom:clamp(24px,3.4vw,44px);
  display:grid;gap:clamp(20px,3vw,38px);
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);align-items:center;
}
@media(max-width:760px){.hero{grid-template-columns:1fr}}
.hero-title{font-size:clamp(34px,5.4vw,68px);font-weight:800;letter-spacing:-.045em;line-height:.98}
/* Le stesse frasi in due lingue non occupano lo stesso numero di righe, e la
   riga in piu' o in meno spostava tutto quello che sta sotto: cambiando lingua
   la pagina sembrava un'altra. Riservando l'altezza di tre righe il blocco non
   si muove piu', in nessuna delle due. In em e non in pixel, cosi' regge anche
   quando lo schermo e' stretto e le righe diventano quattro. */
.hero-sub{margin-top:16px;font-size:clamp(15px,.5vw + 14px,18px);color:var(--ink-2);max-width:44ch;line-height:1.5;min-height:4.5em}
.hero-cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.btn-big{padding:13px 24px;font-size:15px}
.hero-art{position:relative;height:clamp(160px,20vw,260px)}
.hero-shelf{
  position:absolute;inset:0;display:flex;align-items:flex-end;gap:3px;min-width:0;
  padding:0 12px 10px;border-bottom:5px solid var(--shelf);border-radius:0 0 4px 4px;
}
/* I dorsi hanno larghezze diverse — e' quello che li fa sembrare libri — ma
   senza il permesso di stringersi la loro somma teneva in ostaggio la
   larghezza di tutta la pagina. Con flex-shrink si accorciano in proporzione
   e restano diversi fra loro. */
.hero-shelf i{display:block;flex:0 1 auto;min-width:0;border-radius:2px 2px 0 0;animation:rise .7s var(--ease-out) backwards}
@keyframes rise{from{transform:translateY(14px);opacity:0}to{transform:none;opacity:1}}

/* card librerie */
.lib-grid{display:grid;gap:var(--gap);grid-template-columns:repeat(auto-fill,minmax(min(100%,268px),1fr))}
.lib-card{
  position:relative;display:flex;flex-direction:column;gap:14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:16px 16px 14px;cursor:pointer;text-align:left;
  transition:transform .28s var(--ease-out),box-shadow .28s var(--ease),border-color var(--dur);
  animation:rise .5s var(--ease-out) backwards;animation-delay:calc(var(--i,0)*45ms);
}
.lib-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-2)}
.lib-card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.lib-card-name{font-size:17.5px;font-weight:700;letter-spacing:-.02em;line-height:1.2;word-break:break-word}
.lib-card-meta{font-size:12.5px;color:var(--ink-3);margin-top:3px}
.mini{display:grid;gap:3px;border-radius:6px;overflow:hidden}
.mini-row{display:flex;gap:3px}
.mini-cell{
  flex:1 1 0;min-width:0;height:26px;border-radius:3px;
  background:var(--cell-bg);
  display:flex;align-items:flex-end;gap:1px;padding:0 2px 2px;overflow:hidden;
}
.mini-cell i{display:block;flex:0 1 auto;width:3px;min-width:1px;border-radius:1px}
.lib-card-actions{display:flex;gap:4px;flex-wrap:wrap;opacity:0;transform:translateY(3px);transition:opacity var(--dur),transform var(--dur)}
.lib-card:hover .lib-card-actions,.lib-card:focus-within .lib-card-actions{opacity:1;transform:none}
@media(hover:none){.lib-card-actions{opacity:1;transform:none}}

.empty-box{
  border:1px dashed var(--line-2);border-radius:var(--r);padding:clamp(26px,4vw,44px);
  text-align:center;color:var(--ink-2);background:var(--surface);
}
.empty-box p{max-width:46ch;margin:0 auto 16px}

/* ---------- sezioni richiudibili della home ---------- */
.acc-sec{padding-top:clamp(22px,3vw,38px)}
.acc-head{
  display:flex;align-items:baseline;gap:12px;width:100%;text-align:left;
  padding:6px 0;border-radius:var(--r-sm);
}
.acc-head .h2{transition:color var(--dur)}
.acc-head:hover .h2{color:var(--accent)}
.acc-head .tiny{margin-left:auto}
.chev{
  display:grid;place-items:center;width:22px;height:22px;flex:0 0 auto;color:var(--ink-3);
  transform:rotate(0);transition:transform .32s var(--ease-out),color var(--dur);align-self:center;
}
.acc-head[aria-expanded=true] .chev{transform:rotate(90deg);color:var(--ink)}
.acc-head:hover .chev{color:var(--ink)}
.acc{display:grid;grid-template-rows:0fr;transition:grid-template-rows .4s var(--ease-out)}
.acc.open{grid-template-rows:1fr}
/* il padding starebbe dentro la riga da 0fr e lascerebbe passare una striscia
   di contenuto anche da chiuso: lo sposto sul figlio, che viene ritagliato */
.acc-in{overflow:hidden;min-height:0}
.acc-in > *{margin:10px 2px 3px}
.badge{
  flex:0 0 auto;font-size:10.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  padding:4px 9px;border-radius:999px;background:var(--accent-soft);color:var(--accent);
  border:1px solid transparent;align-self:center;
}
html[data-theme=blue] .badge{color:var(--ink);background:rgba(255,255,255,.18)}
.badge-pub{background:transparent;border-color:var(--line-2);color:var(--ink-3)}
.share-link{display:flex;gap:8px}
.share-link input{font-size:13px}
.share-social{display:flex;gap:8px;flex-wrap:wrap}
.share-social .btn{text-decoration:none}
.lib-card.is-pl{border-style:dashed}

/* ---------- intro delle playlist ---------- */
.intro-grid{display:grid;gap:var(--gap);grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr));margin-bottom:8px}
.intro-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px;
  animation:rise .5s var(--ease-out) backwards;
}
.intro-card:nth-child(2){animation-delay:70ms}
.intro-card:nth-child(3){animation-delay:140ms}
.intro-n{font-size:11.5px;font-weight:700;letter-spacing:.12em;color:var(--accent);margin-bottom:10px}
.intro-t{font-weight:700;letter-spacing:-.02em;margin-bottom:5px}
.intro-card p{font-size:13.5px;color:var(--ink-2);line-height:1.5}
.note-box{
  background:var(--accent-soft);border-radius:var(--r-sm);padding:11px 13px;
  font-size:12.5px;color:var(--ink-2);margin-bottom:16px;line-height:1.5;
}

/* ---------- wizard ---------- */
.wz{max-width:920px;margin:0 auto;padding:clamp(26px,4vw,56px) var(--pad) clamp(60px,8vw,110px)}
.wz-bar{display:flex;gap:6px;margin-bottom:26px}
.wz-bar i{height:3px;flex:1;border-radius:999px;background:var(--line);transition:background .35s var(--ease)}
.wz-bar i.on{background:var(--accent)}
.wz-title{font-size:clamp(26px,2.2vw + 18px,40px);font-weight:800;letter-spacing:-.035em;line-height:1.05;margin-bottom:10px}
.wz-sub{color:var(--ink-2);max-width:56ch;margin-bottom:clamp(22px,3vw,34px)}
.wz-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:clamp(26px,3vw,40px);padding-top:20px;border-top:1px solid var(--line)}
.dim-ctl{display:flex;gap:clamp(14px,2.4vw,34px);flex-wrap:wrap;margin-bottom:22px}
.stepper{display:flex;align-items:center;gap:12px}
.stepper-label{font-size:11.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.stepper-btns{display:flex;align-items:center;border:1px solid var(--line-2);border-radius:999px;overflow:hidden}
.stepper-btns button{width:34px;height:34px;color:var(--ink-2);font-size:16px;transition:background var(--dur),color var(--dur)}
.stepper-btns button:hover:not(:disabled){color:var(--ink);background:var(--bg-2)}
.stepper-btns button:disabled{color:var(--line-2);cursor:not-allowed}
.stepper-val{width:40px;text-align:center;font-weight:700;font-variant-numeric:tabular-nums}

/* ---------- scaffali ---------- */
.shelf-scroll{position:relative;margin-inline:calc(var(--pad)*-1);padding-inline:var(--pad);overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin}
.shelf-frame{
  display:grid;gap:0;min-width:min-content;
  background:var(--surface);border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden;
  box-shadow:var(--shadow);
}
.shelf-cell{
  position:relative;min-width:var(--cell-min);min-height:var(--shelf-h);
  border-right:1px solid var(--line);border-bottom:4px solid var(--shelf);
  padding:26px 10px 0;display:flex;align-items:flex-end;gap:2px;
  overflow:hidden;transition:background var(--dur) var(--ease);
}
.shelf-cell.dense{gap:1px;padding-inline:7px}
.shelf-frame.compact{min-width:0}
.shelf-frame.compact .shelf-cell{min-height:var(--cellh,86px);min-width:0;padding:20px 6px 0;border-bottom-width:3px}
.shelf-frame.compact .shelf-tag{display:none}
.shelf-frame.compact .cell-tools{top:3px;right:4px}
.shelf-frame.compact .mini-btn{width:20px;height:20px;border-radius:6px}
/* nel wizard il + è il soggetto della schermata: sempre visibile */
.shelf-frame.compact .cell-tools{opacity:1;transform:none}
.shelf-frame.compact .shelf-pet{
  flex:0 0 auto;align-self:flex-end;margin-left:auto;margin-right:6px;
  height:clamp(46px,62%,116px);
  /* Le piante servono a mettere colore in un ripiano vuoto: spegnerle
     toglieva l'unica ragione per cui ci sono. Piene, come i dorsi. */
  pointer-events:none;
  animation:rise .6s var(--ease-out) backwards;animation-delay:.15s;
}
.shelf-pet svg{display:block;height:100%;width:auto}
.shelf-empty{display:none}
.shelf-frame.compact .spine-txt{display:none}
.shelf-frame.compact .spine{width:clamp(3px,calc(var(--w)*.3),8px);border-radius:1px 1px 0 0}
.shelf-frame.compact .spine::after{height:2px}
.shelf-scroll.compact{overflow:visible;margin-inline:0;padding-inline:0}
.shelf-cell.last-col{border-right:none}
.shelf-cell.last-row{border-bottom:none}
.shelf-cell:hover{background:color-mix(in srgb,var(--bg-2) 55%,transparent)}
.shelf-tag{
  position:absolute;top:7px;left:10px;font-size:10.5px;font-weight:600;letter-spacing:.1em;
  color:var(--ink-3);text-transform:uppercase;pointer-events:none;
  max-width:calc(100% - 60px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  opacity:0;transition:opacity var(--dur) var(--ease);
}
/* nelle playlist il nome del ripiano è contenuto, non decorazione: sempre visibile */
.shelf-tag.named{opacity:1;font-size:11.5px;letter-spacing:.02em;text-transform:none;color:var(--ink-2);font-weight:700}
.shelf-input{position:absolute;top:5px;left:8px;width:calc(100% - 46px);font-size:12.5px;padding:5px 8px;z-index:6}
.shelf-cell:hover .shelf-tag{opacity:1}
.cell-tools{position:absolute;top:5px;right:6px;display:flex;gap:2px;z-index:4;opacity:0;transform:translateY(-2px);transition:opacity var(--dur),transform var(--dur)}
.shelf-cell:hover .cell-tools,.shelf-cell:focus-within .cell-tools{opacity:1;transform:none}
@media(hover:none){.cell-tools{opacity:1;transform:none}.shelf-tag{opacity:1}}
.mini-btn{
  width:24px;height:24px;border-radius:7px;display:grid;place-items:center;
  color:var(--ink-2);background:var(--surface);border:1px solid var(--line);
  transition:color var(--dur),background var(--dur),transform .18s var(--ease-out);
}
.mini-btn:hover{color:var(--accent-fg);background:var(--accent);border-color:var(--accent);transform:scale(1.08)}
.shelf-pet{
  flex:0 0 auto;align-self:flex-end;margin-left:auto;margin-right:6px;
  height:clamp(46px,62%,116px);
  /* Le piante servono a mettere colore in un ripiano vuoto: spegnerle
     toglieva l'unica ragione per cui ci sono. Piene, come i dorsi. */
  pointer-events:none;
  animation:rise .6s var(--ease-out) backwards;animation-delay:.15s;
}
.shelf-pet svg{display:block;height:100%;width:auto}
.shelf-empty{margin:0 auto 12px;align-self:flex-end;font-size:11px;color:var(--ink-3);opacity:.7;letter-spacing:.08em;text-transform:uppercase}

.spine{
  flex:0 1 auto;width:var(--w,14px);min-width:2px;height:var(--h,84%);
  background:var(--c,var(--s11));border-radius:2px 2px 0 0;
  position:relative;cursor:pointer;overflow:hidden;
  display:flex;align-items:flex-end;justify-content:center;
  box-shadow:inset -1px 0 0 rgba(0,0,0,.14),inset 1px 0 0 rgba(255,255,255,.13);
  transition:transform .2s var(--ease-out),opacity .2s var(--ease),filter .2s var(--ease);
  animation:spineIn .34s var(--ease-out) backwards;
}
@keyframes spineIn{from{transform:translateY(10px) scaleY(.92);opacity:0}to{transform:none;opacity:1}}
.spine::after{content:"";position:absolute;inset:0 0 auto;height:4px;background:linear-gradient(rgba(255,255,255,.24),transparent)}
.spine:hover{transform:translateY(-9px)}
.spine-txt{
  writing-mode:vertical-rl;text-orientation:mixed;transform:rotate(180deg);
  font-size:9px;font-weight:600;color:var(--spine-txt);letter-spacing:.01em;
  white-space:nowrap;overflow:hidden;padding:7px 0;max-height:100%;
}
/* voce di playlist che non possiedi: dorso vuoto, si distingue a colpo d'occhio */
.spine.ghost{background:transparent;box-shadow:inset 0 0 0 1.5px var(--c,var(--ink-3))}
.spine.ghost::after{display:none}
.spine.ghost .spine-txt{color:var(--c,var(--ink-2))}
.mini-cell i.ghost{opacity:.4}
.spine.dim{opacity:.16;filter:saturate(.3)}
.spine.dim:hover{transform:none}
/* evidenziazione dalla ricerca globale */
.spotlight .spine{opacity:.14;filter:saturate(.25)}
.spotlight .spine.spot{opacity:1;filter:none;animation:pop 1.1s var(--ease-out) 2}
@keyframes pop{0%{transform:translateY(0)}22%{transform:translateY(-14px)}45%{transform:translateY(0)}}
.spine.spot{box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--accent),var(--shadow)}
.shelf-cell.spot-cell{background:var(--accent-soft)}

/* riordino */
.reordering .spine{touch-action:none;cursor:grab}
.reordering .spine:hover{transform:translateY(-3px) rotate(-1deg)}
.spine.dragging{opacity:.4;cursor:grabbing;transform:scale(1.04)}
.drop-mark{flex:0 0 auto;width:3px;align-self:stretch;margin:22px 1px 0;border-radius:2px;background:var(--accent);animation:blink .9s ease-in-out infinite}
@keyframes blink{50%{opacity:.35}}
.shelf-cell.drop-in{background:var(--accent-soft)}
.reorder-bar{align-items:center}
.reorder-bar .rb-sort{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.reorder-bar .rb-end{display:flex;gap:8px;margin-left:auto}
@media(max-width:640px){.reorder-bar .rb-end{margin-left:0;width:100%}.reorder-bar .rb-end .btn{flex:1}}
.hint{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-2);background:var(--accent-soft);
  border-radius:var(--r-sm);padding:10px 14px;margin-bottom:12px;
  animation:rise .3s var(--ease-out)
}

/* ---------- pagina libreria ---------- */
.lib-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;padding:clamp(18px,2.4vw,32px) 0 16px}
.crumb{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-3);margin-bottom:8px}
.crumb:hover{color:var(--ink)}
.title-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.title-row .mini-btn{opacity:0}
.title-row:hover .mini-btn,.title-row:focus-within .mini-btn{opacity:1}
@media(hover:none){.title-row .mini-btn{opacity:1}}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;padding-bottom:18px}
.toolbar .search-field{max-width:290px}
.toolbar .field{min-width:0;width:auto}
.chip{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
  padding:6px 12px;border-radius:999px;background:var(--bg-2);color:var(--ink-2);
  cursor:pointer;transition:background var(--dur),color var(--dur)
}
.chip:hover{color:var(--ink)}

/* ---------- tooltip ---------- */
.tip{
  position:fixed;z-index:200;max-width:290px;pointer-events:none;
  background:var(--tip-bg);color:var(--tip-fg);
  padding:11px 13px;border-radius:var(--r-sm);font-size:12.5px;line-height:1.45;
  box-shadow:var(--shadow-lg);
  opacity:0;transform:translateY(4px) scale(.97);transform-origin:bottom left;
  transition:opacity .14s var(--ease),transform .16s var(--ease-out);
}
.tip.on{opacity:1;transform:none}
.tip .t-title{font-weight:700;letter-spacing:-.015em;margin-bottom:2px}
.tip .t-meta{opacity:.66;font-size:11.5px}
.tip .t-list{margin-top:7px;padding-top:7px;border-top:1px solid color-mix(in srgb,var(--tip-fg) 22%,transparent);font-size:11.5px}
.tip .t-list div{opacity:.86;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tip .t-notes{opacity:.8;font-size:11.5px;margin-top:6px;font-style:italic}

/* ---------- modale ---------- */
.overlay{
  position:fixed;inset:0;z-index:150;background:var(--scrim);
  display:flex;align-items:center;justify-content:center;padding:clamp(12px,3vw,26px);
  animation:fade .2s var(--ease);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);
}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal{
  width:100%;max-width:560px;max-height:88vh;max-height:88dvh;overflow-y:auto;
  background:var(--bg);border:1px solid var(--line-2);border-radius:var(--r-lg);
  padding:clamp(20px,2.6vw,30px);box-shadow:var(--shadow-lg);
  animation:modalIn .3s var(--ease-out);
}
@keyframes modalIn{from{transform:translateY(10px) scale(.985);opacity:0}to{transform:none;opacity:1}}
.modal-title{font-size:21px;font-weight:800;letter-spacing:-.03em}
.modal-sub{font-size:12.5px;color:var(--ink-3);margin-bottom:18px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.form-grid .full{grid-column:1/-1}
@media(max-width:560px){.form-grid{grid-template-columns:1fr}}
.modal-foot{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:20px;flex-wrap:wrap}
.lookup{background:var(--bg-2);border-radius:var(--r);padding:13px;margin-bottom:16px}
.lookup-row{display:flex;gap:8px}
.lookup-lang{display:flex;align-items:center;gap:10px;margin-top:8px;flex-wrap:wrap}
.lang-sel{width:auto;min-width:140px;padding-block:7px;font-size:13px}
.ed-link{display:inline-block;margin-top:10px;font-size:13px}
.results{margin-top:10px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);max-height:242px;overflow-y:auto;overflow-x:hidden}
.result{display:flex;gap:11px;align-items:center;padding:9px 11px;border-bottom:1px solid var(--line);cursor:pointer;transition:background var(--dur)}
.result:last-child{border-bottom:none}
.result:hover{background:var(--accent-soft)}
.result img{width:30px;height:44px;object-fit:cover;border-radius:3px;background:var(--bg-2);flex:0 0 auto}
.result .ph{width:30px;height:44px;border-radius:3px;background:var(--bg-2);flex:0 0 auto}
.result-t{display:block;font-size:13.5px;font-weight:600;line-height:1.25}
.result-m{display:block;font-size:11.5px;color:var(--ink-3);margin-top:2px}
.status{font-size:12.5px;color:var(--ink-3);padding:9px 2px;display:flex;align-items:center;gap:8px}
.spinner{width:13px;height:13px;border:2px solid var(--line-2);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;flex:0 0 auto}
@keyframes spin{to{transform:rotate(360deg)}}
.cover-row{display:flex;gap:12px;align-items:flex-start;margin-bottom:16px}
.cover-mini{
  width:58px;flex:0 0 auto;aspect-ratio:2/3;border-radius:6px;overflow:hidden;
  background:var(--bg-2);display:grid;place-items:center;color:var(--ink-3);
  border:1px solid var(--line);
}
.cover-mini img{width:100%;height:100%;object-fit:cover}
.cover-ctl{flex:1;min-width:0;display:flex;flex-direction:column;gap:8px}
.cover-btns{display:flex;gap:8px;flex-wrap:wrap}

/* ---------- colore della libreria ---------- */
.sw-dot{width:12px;height:12px;border-radius:50%;display:inline-block;border:1px solid var(--line-2)}
.sw-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:9px;margin-bottom:16px}
.sw{aspect-ratio:1;border-radius:50%;border:2px solid transparent;box-shadow:inset 0 0 0 1px rgba(0,0,0,.12);
  transition:transform .2s var(--ease-out),box-shadow .2s var(--ease)}
.sw:hover{transform:scale(1.12)}
.sw.on{box-shadow:0 0 0 2px var(--bg),0 0 0 4px var(--ink)}
.sw-custom{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.sw-custom label{display:flex;align-items:center;gap:8px}
.sw-custom input[type=color]{width:44px;height:30px;padding:0;border:1px solid var(--line-2);border-radius:8px;background:none;cursor:pointer}
.shelf-frame[data-tinted] .shelf-cell{background:var(--tint);border-bottom-color:var(--shelf)}
.shelf-frame[data-tinted] .shelf-cell:hover{background:var(--tint-2)}
html[data-theme=dark] .shelf-frame[data-tinted] .shelf-cell{background:var(--tint-2)}
html[data-theme=dark] .shelf-frame[data-tinted] .shelf-cell:hover{background:var(--tint-3)}
.lib-card.tinted .mini-cell{background:var(--tint-2)}
html[data-theme=dark] .lib-card.tinted .mini-cell{background:var(--tint-3)}
.csv-strip{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px;
  background:var(--bg-2);border-radius:var(--r-sm);padding:10px 14px;font-size:13.5px;color:var(--ink-2);
}
.csv-strip .btn{margin-left:auto}
.csv-ai{background:var(--bg-2);border-radius:var(--r-sm);padding:13px 15px;margin-bottom:4px}
.csv-ai-t{font-weight:700;letter-spacing:-.02em;margin-bottom:4px;font-size:14px}
.csv-ai p{font-size:13px;color:var(--ink-2);line-height:1.5}
.dup-opts{display:grid;gap:10px;margin-bottom:6px}
.dup-opt{
  text-align:left;border:1px solid var(--line-2);border-radius:var(--r);padding:14px 16px;
  display:flex;flex-direction:column;gap:3px;transition:border-color var(--dur),background var(--dur),transform .18s var(--ease-out);
}
.dup-opt:hover{border-color:var(--accent);background:var(--accent-soft);transform:translateY(-1px)}
.dup-t{font-weight:700;letter-spacing:-.02em}

/* ---------- scheda del libro ---------- */
.modal.lightbox{max-width:640px}
.lb-grid{display:grid;grid-template-columns:minmax(0,150px) minmax(0,1fr);gap:clamp(16px,2.2vw,26px);align-items:start}
@media(max-width:520px){.lb-grid{grid-template-columns:1fr}.lb-cover{max-width:150px}}
.lb-cover{
  position:relative;aspect-ratio:2/3;border-radius:var(--r-sm);overflow:hidden;
  background:var(--c,var(--s5));box-shadow:var(--shadow);
}
.lb-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:2}
.lb-cover.noimg img{display:none}
.lb-fallback{
  position:absolute;inset:0;display:flex;align-items:flex-end;padding:14px 12px;
  background:linear-gradient(160deg,rgba(255,255,255,.22),transparent 60%);
}
.lb-fallback span{
  font-weight:700;font-size:13.5px;line-height:1.25;letter-spacing:-.02em;
  color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.35);
  display:-webkit-box;-webkit-line-clamp:6;-webkit-box-orient:vertical;overflow:hidden;
}
.lb-title{font-size:clamp(20px,1.4vw+15px,27px);font-weight:800;letter-spacing:-.03em;line-height:1.12}
.lb-meta{color:var(--ink-2);margin-top:5px;font-size:14px}
.lb-notes{margin-top:12px;color:var(--ink-2);font-size:14px;line-height:1.55;white-space:pre-wrap}
.lb-where{margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}
.lb-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}

/* ---------- profilo / statistiche ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:var(--gap);margin:18px 0 clamp(30px,4vw,50px)}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;animation:rise .45s var(--ease-out) backwards;animation-delay:calc(var(--i,0)*50ms)}
.stat-n{font-size:clamp(26px,2vw + 16px,38px);font-weight:800;letter-spacing:-.04em;line-height:1;font-variant-numeric:tabular-nums}
.stat-l{font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-top:8px}
.cards{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:var(--gap);align-items:start}
@media(max-width:900px){.cards{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:clamp(16px,1.6vw,22px)}
.card + .card{margin-top:var(--gap)}
.card-t{font-size:16px;font-weight:800;letter-spacing:-.025em}
.card-s{font-size:12.5px;color:var(--ink-3);margin:4px 0 16px;line-height:1.45}
.rank-row{display:flex;align-items:center;gap:11px;padding:9px 2px;border-bottom:1px solid var(--line);font-size:14px}
.rank-row:last-child{border-bottom:none}
.rank-row .n{font-size:11.5px;color:var(--ink-3);font-variant-numeric:tabular-nums;min-width:20px;font-weight:600}
.rank-row .nm{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-row .c{margin-left:auto;font-size:12.5px;color:var(--ink-3);font-variant-numeric:tabular-nums;font-weight:600}
.rank-bar{height:6px;border-radius:999px;background:var(--accent);opacity:.85;margin-left:auto;min-width:3px;flex:0 0 auto}

/* mappa */
.map-wrap{position:relative}
.worldmap{width:100%;height:auto;display:block;touch-action:manipulation}
.worldmap path{
  fill:var(--f,var(--map-empty));stroke:var(--map-line);stroke-width:.5;
  vector-effect:non-scaling-stroke;transition:fill .35s var(--ease),opacity .15s
}
.worldmap path.has{cursor:pointer}
.worldmap path.has:hover{opacity:.75}
.worldmap path.sel{stroke:var(--ink);stroke-width:1.4}
.legend{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:11.5px;color:var(--ink-3)}
.legend i{width:26px;height:9px;display:block;border-radius:2px}
.legend-steps{display:flex;gap:3px}
.cpanel{margin-top:14px;border-top:1px solid var(--line);padding-top:12px;animation:rise .3s var(--ease-out)}
.cpanel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:6px}
.cpanel-t{font-weight:700;letter-spacing:-.02em}
/* niente scorrimento orizzontale: il testo ci sta già, la barra era solo
   un effetto dei margini negativi delle righe */
.cpanel-list{max-height:230px;overflow-y:auto;overflow-x:hidden;padding:0 2px}

/* grafico decenni */
/* Griglia e non flex, e non e' un dettaglio.
   Con quarant'anni di decenni una riga flex si rifiuta di stringersi sotto la
   somma dei suoi contenuti: la scheda diventava larga 374px, la colonna della
   pagina non poteva piu' rimpicciolirsi, e su un telefono stretto tutto il
   sito finiva fuori squadra — le schede non centrate, il layout rotto. Con
   `minmax(0,1fr)` le colonne possono davvero arrivare a zero, quindi la
   larghezza minima del grafico e' quella dei suoi spazi vuoti e basta. */
.bar-top{margin-bottom:6px}
.bars{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(0,1fr);align-items:flex-end;gap:3px;
  min-width:0;height:clamp(140px,14vw,210px);border-bottom:1px solid var(--line-2);padding-top:6px}
.bar-col{min-width:0;height:100%;display:flex;flex-direction:column;justify-content:flex-end}
.bar-col.has{cursor:pointer}
.bar-col.sel .bar{opacity:1;box-shadow:0 0 0 2px var(--surface),0 0 0 3.5px var(--accent)}
.bar{width:100%;min-height:2px;border-radius:4px 4px 0 0;background:var(--accent);opacity:.9;
  transition:opacity .18s var(--ease),transform .18s var(--ease-out);transform-origin:bottom;
  animation:grow .5s var(--ease-out) backwards;animation-delay:calc(var(--i,0)*18ms)}
@keyframes grow{from{transform:scaleY(0)}to{transform:scaleY(1)}}
.bar-col:hover .bar{opacity:1;transform:scaleY(1.03)}
.bar-x{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(0,1fr);gap:3px;margin-top:8px;
  min-width:0;font-size:10.5px;color:var(--ink-3)}
.bar-x span{min-width:0;text-align:center;white-space:nowrap;overflow:visible}

/* risultati ricerca globale */
.gres{border-top:1px solid var(--line)}
.gres-row{
  display:flex;align-items:center;gap:12px;padding:11px 10px;margin-inline:-2px;
  border-bottom:1px solid var(--line);cursor:pointer;border-radius:var(--r-sm);
  transition:background var(--dur);animation:rise .3s var(--ease-out) backwards;animation-delay:calc(var(--i,0)*22ms)
}
.gres-row:hover{background:var(--bg-2)}
.gres-sp{width:6px;height:26px;border-radius:2px;flex:0 0 auto;background:var(--c,var(--s5))}
.gres-t{display:block;font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gres-m{display:block;font-size:12px;color:var(--ink-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gres-w{margin-left:auto;font-size:11.5px;color:var(--ink-3);white-space:nowrap;flex:0 0 auto;display:flex;align-items:center;gap:6px}
@media(max-width:620px){.gres-w{display:none}}

/* account */
.acct{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:12px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--ink-3);display:inline-block;margin-right:7px;vertical-align:1px}
.dot.ok{background:#3F9E62}.dot.err{background:#C2603F}
.seg{display:inline-flex;border:1px solid var(--line-2);border-radius:999px;overflow:hidden}
.seg button{padding:7px 15px;font-size:12.5px;font-weight:600;color:var(--ink-2);transition:background var(--dur),color var(--dur)}
.seg button.on{background:var(--ink);color:var(--bg)}
.seg button:not(.on):hover{background:var(--bg-2);color:var(--ink)}

/* footer */
.foot{border-top:1px solid var(--line);margin-top:auto}
.foot-in{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  padding-block:22px 28px;font-size:12.5px;color:var(--ink-3)}
.foot a{color:var(--ink-2);text-decoration:none;box-shadow:inset 0 -1px 0 var(--line-2)}
.foot a:hover{color:var(--ink);box-shadow:inset 0 -1px 0 var(--ink)}
.foot .logo{height:20px;opacity:.5}

/* toast */
.toast{
  position:fixed;left:50%;bottom:26px;z-index:300;transform:translateX(-50%) translateY(16px);
  background:var(--tip-bg);color:var(--tip-fg);padding:11px 20px;border-radius:999px;
  font-size:13.5px;font-weight:600;box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;
  transition:opacity .24s var(--ease),transform .3s var(--ease-out);
}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}

.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

/* ---------- home a schede ---------- */
.home-top{padding-top:clamp(14px,2vw,22px)}
.tabs{
  display:flex;gap:4px;margin-top:clamp(22px,3vw,34px);
  /* La riga sotto le schede è un'ombra interna e non un bordo: un bordo,
     sommato al margine negativo della scheda attiva, faceva sporgere il
     contenuto di un pixel: quel pixel rendeva la striscia trascinabile
     anche in verticale, e su iPhone si sentiva. Ora l'unico asse che
     scorre è l'orizzontale, e solo quando le schede non ci stanno. */
  box-shadow:inset 0 -1px 0 var(--line);
  overflow-x:auto;overflow-y:hidden;
  overscroll-behavior:contain;
  scrollbar-width:none;
}
.tabs::-webkit-scrollbar{display:none}
.tab{
  position:relative;flex:0 0 auto;display:flex;align-items:center;gap:7px;
  padding:11px 14px;font-size:14px;font-weight:700;letter-spacing:-.01em;color:var(--ink-3);
  border-bottom:2px solid transparent;white-space:nowrap;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.tab:hover{color:var(--ink-2)}
.tab.on{color:var(--ink);border-bottom-color:var(--accent)}
.tab-n{
  font-size:11px;font-weight:800;min-width:18px;height:18px;padding:0 5px;border-radius:9px;
  display:grid;place-items:center;background:var(--bg-2);color:var(--ink-2);
}
.tab.on .tab-n{background:var(--accent);color:var(--accent-fg)}
.tab-panel{padding-top:clamp(20px,3vw,30px);animation:rise .3s var(--ease-out)}
/* Su telefono le quattro schede non ci stavano: l'ultima restava mezza fuori,
   e in italiano — dove le parole sono più lunghe — spariva del tutto. Da qui
   nasceva la sensazione che cambiando lingua cambiasse la pagina. Stringendo
   il respiro e il corpo del testo ci stanno tutte, in tutte e due le lingue,
   e la striscia non ha più niente da scorrere. */
@media (max-width:480px){
  .tabs{gap:2px}
  .tab{padding:11px 8px;font-size:13px;gap:5px}
  .tab-n{font-size:10px;min-width:16px;height:16px;padding:0 4px}
}
/* Sotto i 380 non bastava: si tolgono i contatori. Su uno schermo così
   piccolo vedere che esistono quattro sezioni conta più che sapere quante
   librerie ci sono — il numero è comunque scritto dentro la scheda. */
@media (max-width:380px){
  .tabs{gap:0}
  .tab{padding:11px 7px;font-size:12.5px}
  .tab .tab-n{display:none}
}

/* ---------- azioni della libreria e menu di troppo pieno ---------- */
.lib-acts{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
/* Le etichette in italiano sono più lunghe che in inglese: senza un minimo
   comune i bottoni cambiavano misura al cambio lingua e la riga si spezzava
   in un punto diverso. Il minimo è tarato sulla parola più lunga. */
.lib-acts>.btn{min-width:104px;justify-content:center}
.lib-acts>.btn.btn-ico{min-width:0}

.more{position:relative;display:inline-flex}
.btn-ico{padding:0;width:36px;height:36px;justify-content:center;align-items:center}
.btn-ico svg{display:block}
/* Il pannello prende i colori del tooltip, non quelli delle superfici.
   Sul tema azzurro una superficie e lo sfondo sono due azzurri vicini: il menu
   si confondeva con la pagina e sembrava una scatola vuota che non aveva
   caricato niente. I colori del tooltip sono l'unica coppia del sistema
   garantita in contrasto su tutti e tre i temi. */
.menu{
  position:absolute;top:calc(100% + 7px);right:0;z-index:60;min-width:210px;
  display:none;flex-direction:column;padding:6px;
  background:var(--tip-bg);color:var(--tip-fg);border-radius:var(--r);
  box-shadow:var(--shadow-lg);
}
.more.on .menu{display:flex;animation:rise .16s var(--ease-out)}
.menu-i{
  display:flex;align-items:center;gap:9px;width:100%;
  padding:10px;border-radius:var(--r-sm);
  font-size:14px;font-weight:600;color:inherit;text-align:left;
  background:none;border:0;cursor:pointer;white-space:nowrap;opacity:.84;
  transition:background var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.menu-i:hover{background:rgba(128,128,128,.26);opacity:1}
.menu-i svg{flex:0 0 auto}

@media (max-width:520px){
  /* Su schermo stretto i bottoni vanno a capo e i tre pallini finivano da
     soli in fondo a sinistra: agganciato a loro, il menu si apriva mezzo
     fuori dallo schermo. Qui il riferimento diventa l'intera fila, e il
     pannello scende largo quanto lei — dove uno se lo aspetta. */
  .more{position:static}
  .lib-acts{position:relative}
  .menu{left:0;right:0;min-width:0}
  .lib-acts>.btn{min-width:0;flex:1 1 40%}
  .lib-acts>.more{flex:0 0 auto}
}

/* ---------- negozio ---------- */
.shop-p.shop-free{color:var(--accent);letter-spacing:.02em}
.shop-sample{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;margin-top:14px;text-decoration:none;
}

.shop{max-width:520px}
.shop-note{
  background:var(--accent-soft);border-radius:var(--r);padding:16px 18px;
  font-size:13.5px;line-height:1.55;color:var(--ink-2);display:flex;flex-direction:column;gap:8px;
}
.shop-note b{color:var(--ink);font-weight:800;font-size:14.5px;letter-spacing:-.02em}
.shop-opts{display:grid;gap:10px;margin-top:16px}
.shop-opt{
  display:grid;grid-template-columns:1fr auto;gap:2px 14px;align-items:center;text-align:left;
  border:1px solid var(--line-2);border-radius:var(--r);padding:14px 16px;background:var(--surface);
  transition:border-color var(--dur),transform .18s var(--ease-out);
}
.shop-opt:hover:not([disabled]){border-color:var(--accent);transform:translateY(-1px)}
.shop-opt[disabled]{opacity:.55;cursor:default}
.shop-k{font-size:15px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.shop-d{grid-column:1;font-size:12.5px;color:var(--ink-3);line-height:1.4}
.shop-p{grid-row:1/3;grid-column:2;font-size:14px;font-weight:800;color:var(--accent)}
.shop-opt[disabled] .shop-p{color:var(--ink-3)}
.shop-pick{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:4px}

.buy-list{display:flex;flex-direction:column;gap:8px}
.buy{
  display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:12px;
  border:1px solid var(--line);border-radius:var(--r);padding:12px 14px;background:var(--surface);
}
.buy-k{
  font-size:10.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;
  padding:4px 8px;border-radius:6px;background:var(--bg-2);color:var(--ink-2);
}
.buy-k.print{background:var(--accent);color:var(--accent-fg)}
.buy-n{font-weight:700;letter-spacing:-.01em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:560px){
  .buy{grid-template-columns:auto 1fr;gap:8px 10px}
  .buy-d{grid-column:1/3}
  .buy .btn{grid-column:1/3;justify-self:start}
}
.field-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.field-row .field{max-width:280px}

/* ---------- guida "aggiungi alla schermata Home" ----------
   Non è una finestra al centro: è un foglio che sale dal basso, dove sta il
   pollice e dove il telefono si aspetta le cose da leggere e da chiudere. */
.sheet-ov{align-items:flex-end;padding:0}
.sheet{
  width:100%;max-width:520px;margin:0 auto;
  background:var(--bg);border:1px solid var(--line-2);border-bottom:none;
  border-radius:var(--r-lg) var(--r-lg) 0 0;
  padding:10px clamp(20px,5vw,28px) calc(22px + env(safe-area-inset-bottom,0px));
  box-shadow:var(--shadow-lg);animation:sheetIn .34s var(--ease-out);
  max-height:92vh;max-height:92dvh;overflow-y:auto;
}
@keyframes sheetIn{from{transform:translateY(100%)}to{transform:none}}
.sheet-grab{display:block;width:38px;height:4px;border-radius:2px;background:var(--line-2);margin:0 auto 14px}
.tip-art{display:grid;place-items:center;margin-bottom:12px}
.tip-art svg{width:auto;height:clamp(140px,26vh,190px);display:block}
.tip-title{font-size:20px;font-weight:800;letter-spacing:-.03em;text-align:center}
.tip-sub{font-size:13.5px;color:var(--ink-2);text-align:center;margin:6px 0 18px;line-height:1.45}
.tip-steps{list-style:none;display:flex;flex-direction:column;gap:11px;counter-reset:tip}
.tip-step{display:flex;align-items:center;gap:13px;font-size:14px;line-height:1.35;color:var(--ink-2);counter-increment:tip}
.tip-step b{font-weight:700;color:var(--ink)}
.tip-ic{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--bg-2);border:1px solid var(--line);color:var(--ink);position:relative;
}
.tip-ic::after{
  content:counter(tip);position:absolute;top:-6px;left:-6px;
  width:18px;height:18px;border-radius:50%;background:var(--accent);color:var(--accent-fg);
  font-size:10.5px;font-weight:800;display:grid;place-items:center;
}
.tip-foot{display:flex;gap:8px;margin-top:20px}
.tip-foot .btn{flex:1;justify-content:center;padding-block:11px}
.tip-foot .btn[hidden]{display:none}

/* ---------- installata sulla schermata Home ----------
   Senza la barra del browser le distanze di sicurezza (notch, isola dinamica,
   indicatore Home, angoli in orizzontale) non le mette più nessuno: le mette
   l'app. Fuori dalla modalità standalone queste regole non esistono, e dentro
   `env()` vale 0 dove non serve, quindi non spostano niente su desktop. */
@media (display-mode:standalone),(display-mode:minimal-ui){
  :root{--safe-t:env(safe-area-inset-top,0px);--safe-b:env(safe-area-inset-bottom,0px)}
  /* niente rimbalzo elastico: sotto la pagina non c'è un browser, c'è il vuoto */
  html,body{overscroll-behavior-y:none}
  .topbar{padding-top:calc(clamp(10px,1.3vw,16px) + var(--safe-t))}
  .topbar-in,.wrap{
    padding-left:max(var(--pad),env(safe-area-inset-left,0px));
    padding-right:max(var(--pad),env(safe-area-inset-right,0px));
  }
  main{padding-bottom:calc(clamp(60px,7vw,110px) + var(--safe-b))}
  .foot-in{padding-bottom:calc(28px + var(--safe-b))}
  .toast{bottom:calc(26px + var(--safe-b))}
  .modal{padding-bottom:calc(clamp(20px,2.6vw,30px) + var(--safe-b))}
}

/* transizione fra viste */
.view{animation:viewIn .34s var(--ease-out)}
@keyframes viewIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
/* Aggiornamento arrivato dalla sincronizzazione, non dall'utente: il contenuto
   cambia sul posto senza rigiocare le animazioni d'ingresso. Lo spinner della
   sincronizzazione e l'evidenziazione del libro cercato restano vivi. */
.view.quiet,
.view.quiet .lib-card,
.view.quiet .intro-card,
.view.quiet .hero-shelf i,
.view.quiet .shelf-pet,
.view.quiet .spine:not(.spot),
.view.quiet .stat,
.view.quiet .bar,
.view.quiet .cpanel{animation:none}

@media(max-width:640px){
  /* iOS ingrandisce la pagina quando il campo a fuoco ha meno di 16px: qui la
     ricerca dei libri faceva uno zoom fastidioso a ogni tocco */
  .field,input,select,textarea{font-size:16px}
  .toolbar .search-field{max-width:none;flex:1 1 100%}
  .toolbar select.field{flex:1 1 30%;min-width:0}
  .lib-head{align-items:flex-start}
  .stats{grid-template-columns:repeat(auto-fit,minmax(128px,1fr))}
  .modal{border-radius:var(--r-lg) var(--r-lg) 0 0;max-height:92dvh}
  .overlay{align-items:flex-end;padding:0}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}
