/* ---------- font self-hostati (offline; niente Google Fonts CDN) ---------- */
  @font-face{font-family:"Space Grotesk";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/space-grotesk-500.woff2) format("woff2")}
  @font-face{font-family:"Space Grotesk";font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/space-grotesk-600.woff2) format("woff2")}
  @font-face{font-family:"Space Grotesk";font-style:normal;font-weight:700;font-display:swap;src:url(../fonts/space-grotesk-700.woff2) format("woff2")}
  @font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/inter-400.woff2) format("woff2")}
  @font-face{font-family:"Inter";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/inter-500.woff2) format("woff2")}
  @font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/inter-600.woff2) format("woff2")}
  @font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/ibm-plex-mono-400.woff2) format("woff2")}
  @font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/ibm-plex-mono-500.woff2) format("woff2")}
  @font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/ibm-plex-mono-600.woff2) format("woff2")}

  :root{
    --paper:#ECEAE3;
    --paper-2:#E3E0D7;
    --card:#FCFBF8;
    --ink:#1B1B19;
    --muted:#5B574F;
    --line:#D6D1C6;
    --line-strong:#C3BDAE;
    --accent:#0E6E6B;       /* petrolio dalla latta Hyrid */
    --accent-deep:#0A4F4D;
    --accent-soft:#D7E7E5;
    --danger:#9A3B2E;
    --radius:10px;
    --shadow:0 1px 2px rgba(27,27,25,.06), 0 8px 24px rgba(27,27,25,.06);
  }
  *{box-sizing:border-box}
  html,body{margin:0;padding:0}
  body{
    background:var(--paper);
    color:var(--ink);
    font-family:"Inter",system-ui,sans-serif;
    font-size:15px;
    line-height:1.5;
    -webkit-font-smoothing:antialiased;
    padding-bottom:120px;
    overflow-x:clip;            /* contiene il cassetto fuori-schermo senza creare scrollport */
  }
  .mono{font-family:"IBM Plex Mono",ui-monospace,monospace;font-feature-settings:"tnum"}
  h1,h2,h3{font-family:"Space Grotesk",sans-serif;font-weight:600;margin:0;text-wrap:balance}

  /* ---------- header ---------- */
  header{
    background:var(--ink);
    color:#F3F1EA;
    padding:13px 20px;
    border-bottom:2px solid var(--accent);
  }
  .head-wrap{max-width:1180px;margin:0 auto;display:flex;align-items:center;gap:14px 24px;flex-wrap:wrap}
  .brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
  .brand .logo{width:40px;height:40px;flex:0 0 auto;border-radius:50%;display:block;
    box-shadow:0 1px 2px rgba(0,0,0,.3)}
  .brand-text{display:flex;align-items:baseline;gap:9px;min-width:0}
  .brand h1{font-size:23px;letter-spacing:-.02em;color:#fff;line-height:1}
  .brand .tag{
    font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.12em;
    text-transform:uppercase;color:var(--accent-soft);white-space:nowrap;
  }
  .head-info{
    order:2;flex:0 0 auto;width:36px;height:36px;border-radius:50%;line-height:1;cursor:pointer;
    background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);color:#F3F1EA;
    font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:15px;
    display:flex;align-items:center;justify-content:center;
    transition:background .15s,border-color .15s;
  }
  .head-info:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.4)}
  .head-info:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

  /* ---------- code finder (in app-bar) ---------- */
  .finder{
    flex:1 1 360px;min-width:0;margin:0;order:1;
    display:flex;gap:8px;flex-wrap:wrap;align-items:stretch;
  }
  .finder .field{
    flex:1 1 320px;display:flex;background:#26261F;border:1px solid #3a3a31;border-radius:var(--radius);
    overflow:hidden;
  }
  .finder label{display:flex;align-items:center;padding:0 14px;color:#a39f90;font-size:12px;
    font-family:"IBM Plex Mono",monospace;letter-spacing:.06em;border-right:1px solid #3a3a31;white-space:nowrap}
  .finder input{
    flex:1;background:transparent;border:0;outline:0;color:#fff;
    font-family:"IBM Plex Mono",monospace;font-size:16px;padding:13px 12px;min-width:0;
    letter-spacing:.02em;
  }
  .finder input::placeholder{color:#928d7e}
  .finder .preview{
    width:64px;border-radius:var(--radius);border:1px solid #3a3a31;flex:0 0 auto;
    background:repeating-conic-gradient(#3a3a31 0 25%, #2b2b24 0 50%) 50%/14px 14px;
  }
  .finder .add{
    flex:0 0 auto;background:var(--accent);color:#fff;border:0;border-radius:var(--radius);
    font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:14px;padding:0 18px;cursor:pointer;
  }
  .finder .add:hover{background:var(--accent-deep)}
  .finder .add:disabled{opacity:.4;cursor:not-allowed}
  .finder-msg{max-width:1180px;margin:8px auto 0;font-size:12.5px;color:#cfa9a0;
    font-family:"IBM Plex Mono",monospace}
  .finder-msg.ok{color:var(--accent-soft)}
  .finder-msg.idle{display:none}     /* mostra solo su esito ✓ / errore */

  /* ---------- layout ---------- */
  .layout{max-width:1180px;margin:22px auto 0;padding:0 20px;display:grid;
    grid-template-columns:220px 1fr;gap:24px;align-items:start}
  /* permette agli scroller interni (rail, griglia) di contenersi invece di sfondare la pagina */
  .layout>*{min-width:0}

  /* hue rail */
  .rail h2{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
    margin:0 0 10px;font-weight:600}
  .rail{position:sticky;top:14px;max-height:calc(100vh - 28px);overflow-y:auto;
    padding-right:6px;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent;
    overscroll-behavior:contain}
  .rail::-webkit-scrollbar{width:8px}
  .rail::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:8px;border:2px solid var(--paper)}
  .rail::-webkit-scrollbar-track{background:transparent}
  .quad{margin-bottom:14px}
  .quad-label{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.1em;
    color:var(--muted);text-transform:uppercase;margin:0;padding:4px 0 5px 2px;
    position:sticky;top:0;background:var(--paper);z-index:1}
  .hue-list{display:flex;flex-direction:column;gap:2px}
  .hue-btn{
    display:flex;align-items:center;gap:9px;width:100%;text-align:left;cursor:pointer;
    background:transparent;border:0;border-radius:7px;padding:6px 8px;color:var(--ink);
    font-family:"IBM Plex Mono",monospace;font-size:12.5px;
  }
  .hue-btn:hover{background:var(--paper-2)}
  .hue-btn[aria-current="true"]{background:var(--ink);color:#fff}
  .hue-btn .dot{width:16px;height:16px;border-radius:4px;flex:0 0 auto;
    border:1px solid rgba(0,0,0,.18);box-shadow:inset 0 0 0 1px rgba(255,255,255,.25)}

  /* main */
  .panel-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
    flex-wrap:wrap;margin-bottom:14px}
  .panel-head h2{font-size:22px;letter-spacing:-.01em}
  .panel-head .sub{font-size:12.5px;color:var(--muted);margin-top:3px}
  .panel-head .hue-code{font-family:"IBM Plex Mono",monospace;color:var(--accent-deep);font-weight:600}

  /* nuance grid */
  .grid-scroll{overflow-x:auto;padding-bottom:6px}
  .nuance-grid{display:grid;gap:5px;width:max-content}
  .gh{font-family:"IBM Plex Mono",monospace;font-size:10.5px;color:var(--muted);
    display:flex;align-items:center;justify-content:center}
  .gh.corner{display:flex;flex-direction:column;align-items:flex-end;justify-content:flex-end;
    gap:1px;padding-right:5px;font-size:9.5px;line-height:1.1;color:var(--muted)}
  .gh.rowh{justify-content:flex-end;padding-right:4px}
  .chip{
    position:relative;border:0;padding:0;cursor:pointer;border-radius:6px;overflow:hidden;
    width:60px;height:60px;box-shadow:inset 0 0 0 1px rgba(0,0,0,.10);
    transition:transform .08s ease;
  }
  .chip:hover{transform:translateY(-2px)}
  .chip:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
  .chip[aria-pressed="true"]{outline:3px solid var(--ink);outline-offset:2px}
  .chip .lab{
    position:absolute;left:0;right:0;bottom:0;background:rgba(252,251,248,.94);
    font-family:"IBM Plex Mono",monospace;font-size:10px;color:#26261f;
    padding:2px 0;text-align:center;letter-spacing:.02em;
  }
  .chip.saved::after{content:"✓";position:absolute;top:3px;right:5px;font-size:11px;
    color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.5);font-weight:700}
  .empty-cell{width:60px;height:60px}

  /* detail bar */
  .detail{
    position:fixed;left:0;right:0;bottom:0;z-index:40;background:var(--card);
    border-top:1px solid var(--line-strong);box-shadow:0 -6px 24px rgba(27,27,25,.10);
    transform:translateY(110%);transition:transform .22s ease;
  }
  .detail.show{transform:translateY(0)}
  .detail-in{position:relative;max-width:1180px;margin:0 auto;padding:14px 52px 14px 20px;
    display:flex;align-items:center;gap:16px;flex-wrap:wrap}
  .detail-x{position:absolute;top:6px;right:8px;width:34px;height:34px;display:flex;
    align-items:center;justify-content:center;background:transparent;border:0;border-radius:7px;
    color:var(--muted);font-size:22px;line-height:1;cursor:pointer;transition:background .12s,color .12s}
  .detail-x:hover{color:var(--ink);background:var(--paper-2)}
  .detail-x:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
  .detail .sw{width:62px;height:62px;border-radius:8px;flex:0 0 auto;
    box-shadow:inset 0 0 0 1px rgba(0,0,0,.15)}
  .detail .info{flex:1 1 200px;min-width:0}
  .detail .info .code{font-family:"IBM Plex Mono",monospace;font-weight:600;font-size:19px;
    letter-spacing:.01em}
  .detail .info .meta{font-size:12.5px;color:var(--muted);margin-top:2px}
  .detail .acts{display:flex;gap:8px;flex-wrap:wrap}
  .btn{font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:13px;border-radius:8px;
    padding:9px 14px;cursor:pointer;border:1px solid var(--line-strong);background:var(--card);color:var(--ink)}
  .btn:hover{border-color:var(--ink)}
  .btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
  .btn.primary:hover{background:var(--accent-deep);border-color:var(--accent-deep)}
  .btn.ghost{background:transparent}

  /* floating action buttons */
  .fab-row{position:fixed;right:16px;bottom:16px;z-index:30;display:flex;align-items:center;gap:10px}
  .fab{
    border:0;border-radius:999px;cursor:pointer;
    font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:13.5px;
    display:flex;align-items:center;gap:8px;box-shadow:var(--shadow);
    transition:transform .12s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
  }
  .fab:active{transform:translateY(1px)}
  .fab:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
  /* primario: I miei colori */
  .fab{background:var(--accent);color:#fff;padding:13px 18px}
  .fab:hover{background:var(--accent-deep);box-shadow:0 2px 6px rgba(27,27,25,.10),0 12px 30px rgba(10,79,77,.30)}
  .fab .count{background:rgba(255,255,255,.22);border-radius:999px;padding:1px 8px;min-width:22px;text-align:center;
    font-family:"IBM Plex Mono",monospace;font-size:12px;font-weight:600}

  /* drawer / modal */
  .scrim{position:fixed;inset:0;background:rgba(20,20,18,.42);z-index:50;opacity:0;pointer-events:none;
    transition:opacity .2s ease}
  .scrim.show{opacity:1;pointer-events:auto}
  .sheet{
    position:fixed;top:0;right:0;bottom:0;width:min(440px,92vw);z-index:60;background:var(--paper);
    box-shadow:-10px 0 40px rgba(27,27,25,.18);transform:translateX(102%);transition:transform .24s ease;
    display:flex;flex-direction:column;
  }
  .sheet.show{transform:translateX(0)}
  .sheet-head{padding:18px 20px 14px;border-bottom:1px solid var(--line);display:flex;
    align-items:center;justify-content:space-between}
  .sheet-head h2{font-size:18px}
  .sheet-head .x{background:transparent;border:0;font-size:22px;cursor:pointer;color:var(--muted);line-height:1;
    padding:8px;margin:-8px;border-radius:6px}
  .sheet-head .x:hover{color:var(--ink);background:var(--paper-2)}
  .sheet-body{overflow-y:auto;padding:14px 20px;flex:1}
  .sheet-foot{padding:14px 20px;border-top:1px solid var(--line);display:flex;gap:8px;flex-wrap:wrap}

  .saved-item{display:flex;gap:11px;align-items:flex-start;padding:11px 0;border-bottom:1px solid var(--line)}
  .saved-item .sw{width:46px;height:46px;border-radius:7px;flex:0 0 auto;box-shadow:inset 0 0 0 1px rgba(0,0,0,.15)}
  .saved-item .body{flex:1;min-width:0}
  .saved-item .code{font-family:"IBM Plex Mono",monospace;font-weight:600;font-size:14px}
  .saved-item .hexv{font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--muted)}
  .saved-item input.note{width:100%;margin-top:6px;border:1px solid var(--line);border-radius:6px;
    padding:6px 8px;font-family:"Inter",sans-serif;font-size:13px;background:var(--card)}
  .saved-item .rm{background:transparent;border:0;color:var(--danger);cursor:pointer;font-size:12px;
    font-family:"IBM Plex Mono",monospace;padding:9px 6px;margin:-5px -2px;border-radius:6px}
  .saved-item .rm:hover{background:var(--paper-2)}
  .saved-item .pick{flex:0 0 auto;margin-top:15px;width:18px;height:18px;cursor:pointer;accent-color:var(--accent)}
  .empty-note{color:var(--muted);font-size:13.5px;padding:24px 4px;text-align:center}

  /* backup bar */
  .backup-bar{padding:11px 20px;border-bottom:1px solid var(--line);background:var(--paper-2);
    display:flex;flex-direction:column;gap:8px}
  .backup-bar .bk-msg{font-size:12.5px;color:var(--muted);line-height:1.4}
  .backup-bar .bk-acts{display:flex;gap:8px;flex-wrap:wrap}
  .backup-bar .btn{padding:7px 12px;font-size:12.5px}

  /* login overlay */
  .login-scrim{position:fixed;inset:0;z-index:90;background:var(--ink);
    display:flex;align-items:center;justify-content:center;padding:24px}
  .login-scrim[hidden]{display:none}
  .login-card{width:min(360px,100%);background:var(--card);border-radius:14px;padding:28px 24px 22px;
    display:flex;flex-direction:column;align-items:center;gap:9px;box-shadow:var(--shadow)}
  .login-logo{border-radius:50%;box-shadow:0 1px 2px rgba(0,0,0,.25)}
  .login-card h2{font-family:"Space Grotesk",sans-serif;font-size:24px;letter-spacing:-.02em;margin:2px 0 0}
  .login-sub{color:var(--muted);font-size:13px;text-align:center;margin:0 0 8px;text-wrap:pretty}
  .login-field{width:100%;display:flex;flex-direction:column;gap:5px;margin-bottom:3px}
  .login-field span{font-size:12px;color:var(--muted);font-weight:500}
  .login-field input{width:100%;border:1px solid var(--line-strong);border-radius:8px;padding:11px 12px;
    font-family:"Inter",sans-serif;font-size:16px;background:var(--paper);color:var(--ink)}
  .login-field input:focus-visible{outline:3px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
  .login-submit{width:100%;margin-top:8px;padding:12px;font-size:15px;text-align:center}
  .login-submit:disabled{opacity:.5;cursor:wait}
  .login-msg{min-height:18px;font-size:13px;color:var(--danger);text-align:center}
  /* honeypot: fuori vista per gli umani, visibile ai bot */
  .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

  /* compare overlay */
  .compare{position:fixed;inset:0;z-index:70;background:var(--ink);
    opacity:0;pointer-events:none;transition:opacity .2s ease}
  .compare.show{opacity:1;pointer-events:auto}
  .compare-bands{display:flex;width:100%;height:100%}
  .compare-band{flex:1 1 0;min-width:0;position:relative;display:flex;align-items:flex-end;justify-content:center}
  .compare-cap{margin:0 0 max(18px,env(safe-area-inset-bottom));padding:8px 10px;text-align:center;max-width:92%;
    background:rgba(252,251,248,.94);border-radius:8px;box-shadow:var(--shadow)}
  .compare-cap .code{font-family:"IBM Plex Mono",monospace;font-weight:600;font-size:13px;color:#26261f}
  .compare-cap .hexv{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--muted);margin-top:1px}
  .compare-cap .note{font-family:"Inter",sans-serif;font-size:12px;color:var(--ink);margin-top:3px;
    overflow:hidden;text-overflow:ellipsis}
  .compare-close{position:fixed;top:14px;right:14px;z-index:71;width:44px;height:44px;border-radius:999px;
    border:0;background:rgba(27,27,25,.55);color:#fff;font-size:24px;line-height:1;cursor:pointer;box-shadow:var(--shadow)}

  .info-body p{font-size:13.5px;color:#3a3a34;margin:0 0 12px}
  .info-body strong{color:var(--ink)}
  .info-body .k{font-family:"IBM Plex Mono",monospace;font-size:12.5px;color:var(--accent-deep)}

  /* toast */
  .toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);
    background:var(--ink);color:#fff;padding:11px 18px;border-radius:999px;font-size:13.5px;
    z-index:80;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;
    font-family:"Space Grotesk",sans-serif;font-weight:500;box-shadow:var(--shadow)}
  .toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

  .mobile-only{display:none}

  /* desktop: app-shell — header fisso in alto, rail+griglia riempiono la finestra e
     scorrono INTERNAMENTE. La pagina non scrolla → niente barra verticale spuria. */
  @media (min-width:821px){
    html,body{height:100%}
    body{height:100vh;overflow:hidden;padding-bottom:0;display:flex;flex-direction:column}
    header{flex:0 0 auto}
    .layout{flex:1 1 auto;min-height:0;margin:18px auto 0;align-items:stretch}
    .rail{position:static;top:auto;max-height:none;height:100%;overflow-y:auto}
    .main{min-height:0;height:100%;overflow-y:auto;padding-bottom:20px}
    /* spazio in fondo solo quando la barra dettaglio è aperta (per non nasconderne le ultime righe) */
    body.detail-open .main{padding-bottom:104px}
  }

  /* dita invece del mouse: tap target piu' generosi */
  @media (pointer:coarse){
    .btn{padding:11px 16px}
    .fab{padding:14px 18px}
    .finder .add{padding:0 20px}
  }

  @media (max-width:820px){
    .layout{grid-template-columns:1fr;gap:14px;padding:0 14px}
    /* striscia tinte sticky in cima: cambi tinta anche scorrendo la griglia */
    .rail{position:sticky;top:0;max-height:none;overflow:visible;padding:8px 14px;
      margin:0 -14px;background:var(--paper);z-index:25;border-bottom:1px solid var(--line)}
    .rail::-webkit-scrollbar{width:0}
    .rail h2{display:none}
    .quad{margin-bottom:0}
    .quad-label{display:none}
    .rail-inner{display:flex;gap:6px;overflow-x:auto;padding-bottom:2px;scrollbar-width:none}
    .rail-inner::-webkit-scrollbar{height:0}
    .hue-list{flex-direction:row}
    .hue-btn{flex-direction:column;gap:5px;width:auto;padding:7px 6px;min-width:54px;font-size:10.5px;align-items:center}
    .hue-btn .dot{width:30px;height:22px}
    .mobile-only{display:block}
    /* header compatto: brand essenziale, descrizione/tag nel drawer info */
    header{padding:9px 14px}
    .head-wrap{row-gap:9px}
    .brand{gap:9px;flex:1 1 auto}
    .brand h1{font-size:20px}
    .brand .logo{width:34px;height:34px}
    .brand .tag{display:none}
    .brand p{display:none}
    .head-info{order:0;width:34px;height:34px}
    .finder{flex-wrap:nowrap;gap:6px;order:0}
    .finder .field{flex:1 1 auto;min-width:0}
    .finder .preview{width:44px}
    .finder label{padding:0 12px}
    .finder input{padding:10px 12px}
    .finder .add{padding:0 16px}
    .finder-msg{margin-top:5px}
    .panel-head h2{font-size:18px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none!important}
  }