:root{
    --ground:#FCF9F4; --surface:#FFFFFF; --raise:#F6F0E5; --sunk:#EFE6D6;
    --ink:#2A1815; --ink2:#5C4138; --ink3:#93796A; --ink4:#B7A08E;
    --line:#E8DDCB; --hair:#F2EADD;
    --gold:#8A6A20; --gold-soft:#F8EFD9; --on-gold:#FFFDF7;
    --wine:#8E2420; --wine-soft:#F8E8E5;
    --shadow-1:0 1px 2px rgba(42,24,21,.05);
    --shadow-2:0 2px 6px rgba(42,24,21,.07), 0 10px 28px -16px rgba(42,24,21,.32);
    --shadow-3:0 4px 12px rgba(42,24,21,.10), 0 28px 60px -24px rgba(42,24,21,.45);
  }
  @media (prefers-color-scheme:dark){
    :root:not([data-theme="light"]){
      --ground:#150F0D; --surface:#211613; --raise:#2C1E1A; --sunk:#382622;
      --ink:#F5E9D3; --ink2:#CBB08B; --ink3:#9A7E64; --ink4:#755C48;
      --line:#3D2721; --hair:#2F201C;
      --gold:#D9B76A; --gold-soft:#3A2A14; --on-gold:#1C1210;
      --wine:#E2796E; --wine-soft:#3A1A17;
      --shadow-1:0 1px 2px rgba(0,0,0,.5);
      --shadow-2:0 2px 8px rgba(0,0,0,.5), 0 12px 32px -18px rgba(0,0,0,.9);
      --shadow-3:0 6px 18px rgba(0,0,0,.6), 0 30px 70px -28px rgba(0,0,0,1);
    }
  }
  :root[data-theme="dark"]{
    --ground:#150F0D; --surface:#211613; --raise:#2C1E1A; --sunk:#382622;
    --ink:#F5E9D3; --ink2:#CBB08B; --ink3:#9A7E64; --ink4:#755C48;
    --line:#3D2721; --hair:#2F201C;
    --gold:#D9B76A; --gold-soft:#3A2A14; --on-gold:#1C1210;
    --wine:#E2796E; --wine-soft:#3A1A17;
    --shadow-1:0 1px 2px rgba(0,0,0,.5);
    --shadow-2:0 2px 8px rgba(0,0,0,.5), 0 12px 32px -18px rgba(0,0,0,.9);
    --shadow-3:0 6px 18px rgba(0,0,0,.6), 0 30px 70px -28px rgba(0,0,0,1);
  }

  *{box-sizing:border-box}
  body{margin:0;background:var(--ground);color:var(--ink);
       font-family:"Instrument Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
       font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;height:100vh;overflow:hidden}
  button,input,textarea{font:inherit;color:inherit}
  :focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:4px}
  ::selection{background:var(--gold-soft)}

  /* ══════════ LOGIN ══════════ */
  .signin{height:100vh;display:grid;place-items:center;padding:24px;position:relative;overflow:hidden}
  .signin[hidden]{display:none}
  .signin::before{content:"";position:absolute;inset:0;
    background:radial-gradient(900px 520px at 50% -8%, var(--raise), transparent 68%);pointer-events:none}
  .signin-card{position:relative;width:min(392px,100%);background:var(--surface);
    border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-3);
    padding:40px 36px 26px;display:flex;flex-direction:column;gap:17px}
  .crest{width:82px;height:82px;border-radius:50%;align-self:center;
    box-shadow:0 0 0 1px var(--line),0 8px 26px -10px rgba(42,24,21,.6)}
  .signin h1{font-family:"Fraunces",Georgia,serif;font-size:27px;font-weight:600;
    margin:2px 0 0;text-align:center;letter-spacing:-.02em}
  .signin .host{text-align:center;color:var(--ink3);font-size:11px;margin:-13px 0 6px;
    font-family:"IBM Plex Mono",monospace;letter-spacing:.1em}
  .fld{display:flex;flex-direction:column;gap:6px}
  .fld label{font-family:"IBM Plex Mono",monospace;font-size:9.5px;letter-spacing:.16em;
    text-transform:uppercase;color:var(--ink3)}
  .fld input{padding:12px 14px;border:1px solid var(--line);border-radius:10px;
    background:var(--ground);font-size:14.5px;transition:border-color .15s}
  .fld input:focus{outline:2px solid var(--gold);outline-offset:-1px;border-color:transparent}
  .primary{padding:13px;border:0;border-radius:10px;background:var(--gold);color:var(--on-gold);
    font-weight:600;font-size:15px;cursor:pointer;box-shadow:var(--shadow-2);
    transition:filter .14s,transform .14s;letter-spacing:.01em}
  .primary:hover{filter:brightness(1.09);transform:translateY(-1px)}
  .primary:active{transform:translateY(0)}
  .signin .note{text-align:center;font-size:11.5px;color:var(--ink3);
    border-top:1px solid var(--hair);padding-top:15px;margin-top:3px;line-height:1.7}
  .signin .note code{font-family:"IBM Plex Mono",monospace;font-size:10.5px;color:var(--ink4)}

  /* ══════════ SHELL ══════════ */
  .app{display:grid;grid-template-columns:236px 380px 1fr;height:100vh}
  .app[hidden]{display:none}

  /* rail */
  .rail{background:var(--surface);border-right:1px solid var(--line);
        display:flex;flex-direction:column;min-height:0}
  .brand{display:flex;align-items:center;gap:10px;padding:18px 16px 14px}
  .brand img{width:32px;height:32px;border-radius:50%;box-shadow:0 0 0 1px var(--line)}
  .brand .bn{font-family:"Fraunces",Georgia,serif;font-weight:600;font-size:16px;line-height:1.1;letter-spacing:-.01em}
  .brand .bm{font-family:"IBM Plex Mono",monospace;font-size:9px;color:var(--ink3);letter-spacing:.03em}

  .compose{margin:0 14px 16px;padding:11px 14px;border:0;border-radius:12px;
    background:var(--gold);color:var(--on-gold);font-weight:600;cursor:pointer;
    display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:var(--shadow-2);
    transition:filter .14s,transform .14s}
  .compose:hover{filter:brightness(1.09);transform:translateY(-1px)}
  .compose svg{width:15px;height:15px}

  .nav{flex:1;overflow-y:auto;padding:0 9px 14px;display:flex;flex-direction:column;gap:1px}
  .nav::-webkit-scrollbar{width:6px}
  .nav::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px}
  .fold{display:flex;align-items:center;gap:11px;padding:8px 11px;border-radius:9px;
    border:0;background:none;cursor:pointer;text-align:left;width:100%;color:var(--ink2);
    transition:background .12s}
  .fold:hover{background:var(--raise)}
  .fold[aria-current="true"]{background:var(--gold-soft);color:var(--ink);font-weight:600}
  .fold svg{width:15px;height:15px;flex:none;opacity:.75}
  .fold[aria-current="true"] svg{opacity:1;color:var(--gold)}
  .fold .n{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13.5px}
  .fold .c{font-family:"IBM Plex Mono",monospace;font-size:10.5px;color:var(--ink3);
    font-variant-numeric:tabular-nums}
  .fold[aria-current="true"] .c{color:var(--gold)}
  .navlabel{font-family:"IBM Plex Mono",monospace;font-size:9px;letter-spacing:.18em;
    text-transform:uppercase;color:var(--ink4);padding:16px 11px 6px}
  .swatch{width:8px;height:8px;border-radius:2.5px;flex:none;margin-left:3px;margin-right:4px}

  .storage{padding:12px 17px 15px;border-top:1px solid var(--hair)}
  .storage .track{height:4px;border-radius:3px;background:var(--sunk);overflow:hidden}
  .storage .track i{display:block;height:100%;background:var(--gold);border-radius:3px}
  .storage .lbl{font-family:"IBM Plex Mono",monospace;font-size:9.5px;color:var(--ink3);margin-top:7px;letter-spacing:.02em}

  /* list */
  .list{border-right:1px solid var(--line);background:var(--surface);
        display:flex;flex-direction:column;min-height:0}
  .lhead{padding:14px 16px 0;border-bottom:1px solid var(--line);
         display:flex;flex-direction:column;gap:12px}
  .find{display:flex;align-items:center;gap:9px;background:var(--ground);
    border:1px solid var(--line);border-radius:10px;padding:8px 12px;transition:border-color .15s}
  .find:focus-within{border-color:var(--gold)}
  .find svg{width:14px;height:14px;color:var(--ink3);flex:none}
  .find input{border:0;background:none;flex:1;outline:0;font-size:13.5px;min-width:0}
  .find kbd{font-family:"IBM Plex Mono",monospace;font-size:9.5px;color:var(--ink4);
    border:1px solid var(--line);border-radius:4px;padding:1px 4px;flex:none}

  .lbar{display:flex;align-items:center;gap:10px;padding-bottom:11px;min-height:34px}
  .lbar h2{font-family:"Fraunces",Georgia,serif;font-size:20px;font-weight:600;margin:0;letter-spacing:-.015em}
  .lbar .n{font-family:"IBM Plex Mono",monospace;font-size:10.5px;color:var(--ink3);margin-left:auto;
    font-variant-numeric:tabular-nums}
  .chk{width:15px;height:15px;accent-color:var(--gold);cursor:pointer;flex:none}
  .bulk{display:flex;align-items:center;gap:2px;margin-left:2px}
  .bulk[hidden]{display:none}

  .rows{flex:1;overflow-y:auto}
  .rows::-webkit-scrollbar{width:7px}
  .rows::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}
  .row{display:grid;grid-template-columns:16px 18px 32px 1fr;gap:9px;align-items:start;
    padding:11px 15px 12px;border-bottom:1px solid var(--hair);cursor:pointer;
    position:relative;transition:background .1s}
  .row:hover{background:var(--raise)}
  .row[data-sel="1"]{background:var(--gold-soft)}
  .row[data-sel="1"]::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--gold)}
  .row .star{border:0;background:none;padding:0;cursor:pointer;color:var(--ink4);
    display:grid;place-items:center;height:17px;transition:color .12s,transform .12s}
  .row .star svg{width:14px;height:14px}
  .row .star:hover{transform:scale(1.15)}
  .row .star[aria-pressed="true"]{color:var(--gold)}
  .row .star[aria-pressed="true"] svg{fill:currentColor}
  .av{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
    font-size:12px;font-weight:600;flex:none;letter-spacing:.02em;
    font-family:"Instrument Sans",sans-serif;margin-top:1px}
  .rmain{min-width:0}
  .rtop{display:flex;align-items:baseline;gap:8px}
  .rfrom{font-size:13.5px;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--ink2)}
  .rwhen{font-family:"IBM Plex Mono",monospace;font-size:10px;color:var(--ink3);flex:none;
    font-variant-numeric:tabular-nums}
  .rsubj{font-size:13px;color:var(--ink2);white-space:nowrap;overflow:hidden;
    text-overflow:ellipsis;margin-top:2px}
  .rprev{font-size:12px;color:var(--ink3);white-space:nowrap;overflow:hidden;
    text-overflow:ellipsis;margin-top:2px;line-height:1.45}
  .row.unread .rfrom{font-weight:600;color:var(--ink)}
  .row.unread .rsubj{color:var(--ink);font-weight:500}
  .row.unread::after{content:"";position:absolute;left:6px;top:19px;width:5px;height:5px;
    border-radius:50%;background:var(--wine)}
  .lbl{display:inline-block;font-family:"IBM Plex Mono",monospace;font-size:8.5px;
    letter-spacing:.1em;text-transform:uppercase;padding:1.5px 6px;border-radius:5px;
    margin-left:7px;vertical-align:1px;font-weight:500}
  .clip{color:var(--ink3);margin-left:6px}
  .clip svg{width:11px;height:11px;vertical-align:-1.5px}
  .rowacts{position:absolute;right:12px;top:9px;display:none;gap:1px;
    background:var(--surface);border:1px solid var(--line);border-radius:8px;
    padding:2px;box-shadow:var(--shadow-2)}
  .row:hover .rowacts{display:flex}
  .mini{width:26px;height:26px;display:grid;place-items:center;border:0;background:none;
    border-radius:6px;color:var(--ink3);cursor:pointer}
  .mini:hover{background:var(--raise);color:var(--ink)}
  .mini svg{width:14px;height:14px}

  /* reader */
  .read{display:flex;flex-direction:column;min-height:0;background:var(--ground)}
  .rbar{display:flex;align-items:center;gap:3px;padding:12px 20px;
    border-bottom:1px solid var(--line);background:var(--surface);flex:none}
  .ib{width:33px;height:33px;display:grid;place-items:center;border:0;background:none;
    border-radius:9px;color:var(--ink3);cursor:pointer;transition:background .12s,color .12s}
  .ib:hover{background:var(--raise);color:var(--ink)}
  .ib svg{width:16px;height:16px}
  .divide{width:1px;height:20px;background:var(--line);margin:0 7px}
  .grow{flex:1}
  .pager{font-family:"IBM Plex Mono",monospace;font-size:10.5px;color:var(--ink3);
    font-variant-numeric:tabular-nums;margin-right:4px}

  .rbody{flex:1;overflow-y:auto;padding:30px 40px 70px}
  .rbody::-webkit-scrollbar{width:8px}
  .rbody::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}
  .letter{max-width:760px}
  .letter h1{font-family:"Fraunces",Georgia,serif;font-size:28px;font-weight:600;
    line-height:1.22;margin:0 0 6px;letter-spacing:-.02em;text-wrap:balance}
  .lblrow{margin:0 0 18px}
  .sender{display:flex;align-items:center;gap:13px;padding:16px 0 18px;border-bottom:1px solid var(--line)}
  .sender .av{width:42px;height:42px;font-size:14px}
  .sname{font-weight:600;font-size:14.5px}
  .smail{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--ink3);margin-top:1px}
  .sdate{margin-left:auto;text-align:right;font-family:"IBM Plex Mono",monospace;
    font-size:10.5px;color:var(--ink3);line-height:1.6}

  .copy{max-width:68ch;padding-top:24px;font-size:14.5px;line-height:1.7;color:var(--ink2)}
  .copy p{margin:0 0 15px}
  .copy strong{color:var(--ink);font-weight:600}
  .copy ul{margin:0 0 15px;padding-left:20px}
  .copy li{margin-bottom:5px}
  .copy .data{font-family:"IBM Plex Mono",monospace;font-size:12px;background:var(--surface);
    border:1px solid var(--line);border-radius:10px;padding:13px 15px;margin:0 0 17px;
    white-space:pre;overflow-x:auto;line-height:1.7;color:var(--ink2)}
  .sig{margin-top:20px;padding-top:16px;border-top:1px solid var(--hair);
    font-size:13.5px;color:var(--ink3);line-height:1.6}

  .files{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
  .file{display:flex;gap:11px;align-items:center;padding:11px 14px;border:1px solid var(--line);
    border-radius:11px;background:var(--surface);cursor:pointer;transition:border-color .14s,transform .14s}
  .file:hover{border-color:var(--gold);transform:translateY(-1px)}
  .file svg{width:18px;height:18px;color:var(--gold);flex:none}
  .file .fn{font-size:13px;font-weight:500}
  .file .fs{font-family:"IBM Plex Mono",monospace;font-size:10px;color:var(--ink3)}

  .quick{display:flex;gap:9px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line)}
  .qb{padding:9px 18px;border:1px solid var(--line);border-radius:20px;background:var(--surface);
    color:var(--ink2);font-size:13.5px;font-weight:500;cursor:pointer;display:flex;align-items:center;gap:7px;
    transition:border-color .14s,color .14s}
  .qb:hover{border-color:var(--gold);color:var(--ink)}
  .qb svg{width:14px;height:14px}

  .blank{flex:1;display:grid;place-items:center;color:var(--ink3);font-size:13.5px;text-align:center}
  .blank img{width:56px;height:56px;border-radius:50%;opacity:.4;margin-bottom:14px}

  /* compose */
  .scrim{position:fixed;inset:0;background:rgba(20,10,8,.42);backdrop-filter:blur(3px);
    display:flex;align-items:flex-end;justify-content:flex-end;z-index:50;padding:0 28px 0 0}
  .scrim[hidden]{display:none}
  .comp{width:min(596px,100%);background:var(--surface);border:1px solid var(--line);
    border-bottom:0;border-radius:14px 14px 0 0;box-shadow:var(--shadow-3);
    display:flex;flex-direction:column;max-height:78vh}
  .chead{display:flex;align-items:center;padding:14px 18px;border-bottom:1px solid var(--hair);
    background:var(--raise);border-radius:13px 13px 0 0}
  .chead h3{font-family:"Fraunces",Georgia,serif;font-size:17px;font-weight:600;margin:0;flex:1;letter-spacing:-.01em}
  .crow{display:flex;align-items:center;gap:12px;padding:11px 18px;border-bottom:1px solid var(--hair)}
  .crow label{font-family:"IBM Plex Mono",monospace;font-size:9.5px;letter-spacing:.14em;
    text-transform:uppercase;color:var(--ink3);width:46px;flex:none}
  .crow input{border:0;background:none;outline:0;flex:1;font-size:14px;min-width:0}
  .comp textarea{border:0;background:none;outline:0;padding:18px;resize:none;
    min-height:190px;font-size:14.5px;line-height:1.65;flex:1;font-family:inherit}
  .cfoot{display:flex;align-items:center;gap:10px;padding:14px 18px;border-top:1px solid var(--hair)}
  .send{padding:10px 24px;border:0;border-radius:22px;background:var(--gold);color:var(--on-gold);
    font-weight:600;cursor:pointer;box-shadow:var(--shadow-1);transition:filter .14s}
  .send:hover{filter:brightness(1.09)}
  .proto{font-family:"IBM Plex Mono",monospace;font-size:9.5px;color:var(--ink4);letter-spacing:.05em}

  .theme{position:fixed;bottom:18px;right:18px;width:35px;height:35px;border-radius:10px;
    border:1px solid var(--line);background:var(--surface);color:var(--ink3);cursor:pointer;
    display:grid;place-items:center;z-index:30;box-shadow:var(--shadow-1)}
  .theme svg{width:15px;height:15px}
  .theme:hover{color:var(--ink)}

  .toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:var(--ink);
    color:var(--ground);padding:11px 20px;border-radius:11px;font-size:13.5px;z-index:70;
    box-shadow:var(--shadow-3)}
  .toast[hidden]{display:none}

  @media (prefers-reduced-motion:reduce){*{transition:none!important}}
  @media (max-width:1180px){.app{grid-template-columns:200px 330px 1fr}.rbody{padding:26px 28px 60px}}
  @media (max-width:860px){.app{grid-template-columns:1fr}.rail,.list{display:none}}

/* ── additions for the live application ─────────────────────────── */

.signout{
  margin-top:10px; width:100%; padding:7px 10px; font:inherit; font-size:12px;
  color:var(--muted,#7a6a5e); background:transparent; cursor:pointer;
  border:1px solid var(--line,rgba(0,0,0,.1)); border-radius:8px;
}
.signout:hover{ color:var(--ink); border-color:var(--accent,#8A6A20); }

.pagebar{
  display:flex; align-items:center; justify-content:center; gap:14px;
  padding:10px; border-top:1px solid var(--line,rgba(0,0,0,.08));
}

.state{
  display:flex; align-items:center; justify-content:center;
  height:100%; min-height:180px; padding:40px 24px; text-align:center;
  color:var(--muted,#7a6a5e); font-size:13px; line-height:1.6;
}
.state.err{ color:var(--now,#8E2420); }

.spin{
  width:15px; height:15px; margin-right:9px; border-radius:50%;
  border:2px solid currentColor; border-top-color:transparent;
  display:inline-block; animation:sp .7s linear infinite;
}
@keyframes sp{ to{ transform:rotate(360deg) } }
@media (prefers-reduced-motion:reduce){ .spin{ animation:none } }

.imgbar{
  display:flex; align-items:center; gap:12px; flex-wrap:wrap;
  margin:0 0 18px; padding:10px 13px; font-size:12.5px;
  color:var(--muted,#7a6a5e);
  background:var(--ground,#FCF9F4);
  border:1px solid var(--line,rgba(0,0,0,.1)); border-radius:9px;
}
.imgbar button{
  font:inherit; font-size:12px; font-weight:600; cursor:pointer;
  padding:4px 11px; border-radius:6px;
  color:var(--accent,#8A6A20); background:transparent;
  border:1px solid var(--accent,#8A6A20);
}
.imgbar button:hover{ color:#fff; background:var(--accent,#8A6A20); }

.frame{
  width:100%; border:0; display:block; min-height:120px;
  background:transparent; color-scheme:light;
}

.signin-card .err{
  margin:14px 0 0; font-size:12.5px; color:var(--now,#8E2420); text-align:center;
}
.primary[disabled],.send[disabled]{ opacity:.55; cursor:default; }

/* The live app has no per-row checkbox, so the row grid loses its first
   column: star, avatar, content. */
.row{ grid-template-columns:18px 32px 1fr; }