/* Layout: login card, then a project rail on the left and the project window on the right, with a Tabs tray that slides up from the bottom. */
:root{
  --bg:#F2F3F8; --surface:#FFFFFF; --surface-2:#F6F7FB; --line:#DCDFEA;
  --fg:#161A2C; --muted:#596079; --accent:#4338CA; --on-accent:#FFFFFF; --danger:#B42318;
  --shadow:0 1px 2px rgba(22,26,44,.06),0 10px 28px rgba(22,26,44,.09);
  --f-display:'Space Grotesk',system-ui,sans-serif;
  --f-body:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;
  --f-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --rail:276px;
  color-scheme:light;
  padding-block:env(safe-area-inset-top,0px) env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0E1017; --surface:#161A24; --surface-2:#1C2130; --line:#2A3046;
    --fg:#E7E9F5; --muted:#9BA2BC; --accent:#9A97F7; --on-accent:#10121B; --danger:#F97066;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 28px rgba(0,0,0,.45);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0E1017; --surface:#161A24; --surface-2:#1C2130; --line:#2A3046;
  --fg:#E7E9F5; --muted:#9BA2BC; --accent:#9A97F7; --on-accent:#10121B; --danger:#F97066;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 28px rgba(0,0,0,.45);
  color-scheme:dark;
}
*{box-sizing:border-box}
img{max-width:100%}
[hidden]{display:none!important}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--f-body);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Login ---------- */
.login{min-height:100%;display:grid;place-items:center;padding:24px 16px}
.login-card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:28px 24px;display:flex;flex-direction:column;gap:18px}
.login-brand{display:flex;flex-direction:column;gap:12px}
.login-brand h1{margin:0;font:700 26px/1.1 var(--f-display);letter-spacing:-.01em}
.login-brand p{margin:0;color:var(--muted)}
.demo-chips{display:flex;flex-wrap:wrap;gap:6px}
.demo-chips span{background:var(--c);color:#fff;font-weight:600;font-size:12px;padding:3px 10px;border-radius:999px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
.field input{height:42px;padding:0 12px;background:var(--surface-2);border:1px solid var(--line);border-radius:8px}
.field input:focus{outline:2px solid var(--accent);outline-offset:0;border-color:transparent}
.form{display:flex;flex-direction:column;gap:14px}
.btn{height:42px;border:0;border-radius:8px;background:var(--accent);color:var(--on-accent);font-weight:600;padding:0 16px}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--accent);height:auto;padding:4px 0;font-weight:500;align-self:flex-start}
.err{margin:0;color:var(--danger);font-size:13px;min-height:1em}
.note{margin:0;color:var(--muted);font-size:12px}

/* ---------- App shell ---------- */
.app{height:100%;display:grid;grid-template-columns:var(--rail) minmax(0,1fr)}
.rail{background:var(--surface);border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0;min-width:0}
.rail-top{padding:16px;display:flex;flex-direction:column;gap:14px;border-bottom:1px solid var(--line)}
.brand{font:700 18px/1 var(--f-display);letter-spacing:-.01em}
.new-project{display:flex;gap:6px}
.new-project input{flex:1;min-width:0;height:38px;padding:0 10px;background:var(--surface-2);border:1px solid var(--line);border-radius:8px}
.new-project button{height:38px;padding:0 12px;border:0;border-radius:8px;background:var(--accent);color:var(--on-accent);font-weight:600}
.rail-label{padding:14px 16px 6px;font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.plist{list-style:none;margin:0;padding:0 8px 8px;overflow:auto;flex:1;min-height:0;display:flex;flex-direction:column;gap:2px}
.pitem{display:flex;align-items:center;border-radius:8px}
.pitem:hover{background:var(--surface-2)}
.pitem.active{background:color-mix(in srgb,var(--accent) 14%,transparent)}
.p-open{flex:1;min-width:0;display:flex;align-items:center;gap:8px;padding:9px 10px;background:none;border:0;text-align:left;border-radius:8px}
.pitem.active .p-open{font-weight:600}
.p-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.p-count{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.p-del{background:none;border:0;color:var(--muted);padding:6px 8px;margin-right:4px;border-radius:6px;font-size:12px;opacity:.55;display:flex;align-items:center}
.pitem:hover .p-del,.p-del:focus-visible,.p-del.armed{opacity:1}
.p-del.armed,.s-del.armed{color:var(--danger);font-weight:600}
.rail-foot{padding:12px 16px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:8px}
.link-btn{background:none;border:0;color:var(--muted);padding:4px 0;font-size:13px}
.link-btn:hover{color:var(--fg)}

.main{display:flex;flex-direction:column;min-width:0;min-height:0;height:100%}
.bar{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line);background:var(--surface)}
.icon-btn{width:38px;height:38px;border-radius:8px;border:1px solid var(--line);background:var(--surface-2);display:none;place-items:center;flex:none}
.proj-name{flex:1;min-width:0;background:transparent;border:0;border-radius:6px;padding:4px 8px;margin-left:-8px;font:700 22px/1.2 var(--f-display);letter-spacing:-.01em}
.proj-name:hover{background:var(--surface-2)}
.proj-name:focus{outline:2px solid var(--accent);background:var(--surface-2)}
.proj-meta{color:var(--muted);font-size:13px;white-space:nowrap;font-variant-numeric:tabular-nums}
.scroll{flex:1;min-height:0;overflow:auto;padding:20px 16px 28px}
.doc{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
#sections{display:flex;flex-direction:column;gap:14px}

/* Section cards */
.section{background:var(--surface);border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:0 1px 2px rgba(22,26,44,.05)}
.section:focus-within{border-color:var(--c)}
.section.dragging{opacity:.45}
.s-head{display:flex;align-items:center;gap:4px;background:var(--c);color:#fff;padding:4px 6px}
.grip{background:none;border:0;color:rgba(255,255,255,.8);padding:6px;display:grid;place-items:center;cursor:grab;border-radius:6px}
.grip:active{cursor:grabbing}
.s-name{flex:1;min-width:0;background:transparent;border:0;border-radius:6px;color:#fff;font:600 15px/1.3 var(--f-display);padding:6px 8px}
.s-name:focus{outline:2px solid #fff;background:rgba(255,255,255,.14)}
.s-btn{background:none;border:0;color:rgba(255,255,255,.85);height:32px;min-width:32px;padding:0 8px;border-radius:6px;display:grid;place-items:center;font-size:12px}
.s-btn:hover,.grip:hover{background:rgba(255,255,255,.16);color:#fff}
.s-btn.armed{background:#fff;color:var(--danger);font-weight:600}
.dot{width:18px;height:18px;border-radius:50%;border:2px solid #fff;background:rgba(255,255,255,.28);display:block}
.s-text{display:block;width:100%;min-height:92px;resize:none;overflow:hidden;border:0;background:transparent;padding:12px 14px;line-height:1.6;outline:none}
.s-text::placeholder{color:var(--muted)}
.links{display:flex;flex-wrap:wrap;gap:6px;padding:0 14px 12px}
.links:empty{display:none}
.link-chip{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font:12px var(--f-mono);color:var(--accent);background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:3px 8px;text-decoration:none}
.link-chip:hover{text-decoration:underline}
.drop-marker{height:46px;border:2px dashed var(--accent);border-radius:10px;background:color-mix(in srgb,var(--accent) 10%,transparent);display:grid;place-items:center;color:var(--accent);font-weight:600;font-size:13px}
.drop-hint{border:2px dashed var(--line);border-radius:10px;padding:18px 16px;text-align:center;color:var(--muted)}
.drop-hint strong{display:block;color:var(--fg);font:600 15px var(--f-display);margin-bottom:2px}
.drop-hint.big{padding:48px 16px}

/* Attachments */
.thumbs{display:flex;flex-wrap:wrap;gap:8px;padding:0 14px 10px}
.thumbs:empty{display:none}
.thumb-wrap{position:relative}
.thumb{display:block;padding:0;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--surface-2)}
.thumb img{display:block;height:96px;width:auto;max-width:220px;object-fit:cover}
.f-x{position:absolute;top:4px;right:4px;width:22px;height:22px;border-radius:50%;border:0;background:rgba(0,0,0,.62);color:#fff;display:grid;place-items:center}
.docs{display:flex;flex-direction:column;gap:6px;padding:0 14px 10px}
.docs:empty{display:none}
.doc-chip{display:flex;align-items:center;gap:10px;min-width:0;background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:6px 6px 6px 8px}
.doc-chip .ext{background:var(--c);color:#fff;font:700 10px var(--f-mono);letter-spacing:.04em;border-radius:5px;padding:4px 6px;min-width:40px;text-align:center}
.d-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.d-size{color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums;white-space:nowrap}
.doc-chip .f-x{position:static;background:none;color:var(--muted);flex:none}
.doc-chip .f-x:hover{color:var(--fg)}
.s-foot{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:8px 14px 10px;border-top:1px solid var(--line)}
.attach{height:30px;padding:0 10px;background:var(--surface-2);border:1px solid var(--line);border-radius:6px;font-size:13px;font-weight:600}
.attach:hover{border-color:var(--c)}
.f-note{font-size:12px;color:var(--muted);min-width:0}
.f-note.bad{color:var(--danger)}
.section.file-over{outline:2px dashed var(--c);outline-offset:-3px}
.lightbox{position:fixed;inset:0;z-index:60;background:rgba(8,10,18,.88);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:16px}
.lightbox img{max-width:100%;max-height:80vh;border-radius:8px;background:#fff}
.lb-cap{color:#E7E9F5;font-size:13px}
.lb-close{position:absolute;top:calc(12px + env(safe-area-inset-top,0px));right:16px;width:40px;height:40px;border-radius:50%;border:0;background:rgba(255,255,255,.16);color:#fff;display:grid;place-items:center}

/* Tabs tray */
.tray{background:var(--surface);border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(22,26,44,.07)}
.tray-handle{width:100%;display:flex;align-items:center;gap:10px;padding:10px 16px;background:none;border:0;text-align:left}
.tray-handle .t-label{font:600 14px var(--f-display)}
.tray-handle .t-count{background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:0 8px;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.tray-handle .t-hint{flex:1;color:var(--muted);font-size:12px}
.tray-handle .t-chev{transition:transform .25s;transform:rotate(180deg);color:var(--muted)}
.tray.open .t-chev{transform:rotate(0)}
.tray-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .26s ease}
.tray.open .tray-body{grid-template-rows:1fr}
.tray-inner{min-height:0;overflow:hidden}
.tray-pad{padding:2px 16px 14px;display:flex;flex-direction:column;gap:12px;max-height:38vh;overflow:auto}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:2px;background:var(--c);color:#fff;border-radius:999px;padding:3px 4px;font-weight:600;font-size:13px;cursor:grab;user-select:none;box-shadow:0 1px 2px rgba(0,0,0,.18)}
.chip:active{cursor:grabbing}
.chip button{background:none;border:0;color:inherit;display:grid;place-items:center}
.chip .c-dot{width:20px;height:20px;border-radius:50%;border:2px solid #fff;background:rgba(255,255,255,.28);margin-left:2px}
.chip .c-add{padding:4px 6px;font-weight:600}
.chip .c-x{width:22px;height:22px;border-radius:50%;opacity:.85}
.chip .c-x:hover{background:rgba(255,255,255,.22);opacity:1}
.chip input{width:110px;background:rgba(255,255,255,.2);border:0;border-radius:6px;color:#fff;padding:2px 6px;font-weight:600}
.tray-form{display:flex;gap:6px;max-width:420px}
.tray-form input{flex:1;min-width:0;height:36px;padding:0 10px;background:var(--surface-2);border:1px solid var(--line);border-radius:8px}
.tray-form button{height:36px;padding:0 12px;border:1px solid var(--line);background:var(--surface-2);border-radius:8px;font-weight:600}
.tray-tip{margin:0;color:var(--muted);font-size:12px}

/* Colour palette popover */
.palette{position:fixed;z-index:50;background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:10px;display:grid;grid-template-columns:repeat(5,30px);gap:8px}
.sw{width:30px;height:30px;border-radius:50%;border:2px solid var(--surface);box-shadow:0 0 0 1px var(--line)}
.sw.on{box-shadow:0 0 0 2px var(--fg)}

.scrim{display:none}

@media (max-width:820px){
  .app{grid-template-columns:minmax(0,1fr)}
  .rail{position:fixed;z-index:40;top:0;bottom:0;left:0;width:min(86vw,320px);transform:translateX(-100%);transition:transform .25s ease;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
  .app.rail-open .rail{transform:none;box-shadow:var(--shadow)}
  .app.rail-open .scrim{display:block;position:fixed;inset:0;z-index:30;background:rgba(10,12,20,.5)}
  .icon-btn{display:grid}
  .proj-meta{display:none}
  .tray-handle .t-hint{display:none}
  .p-del{opacity:1}
}
@media (pointer:coarse){
  .chip .c-add{padding:8px 8px}
  .chip .c-dot{width:24px;height:24px}
  .s-btn,.grip{min-height:36px}
}
@media (prefers-reduced-motion:reduce){
  .rail,.tray-body,.t-chev{transition:none}
}

/* ---------- Additions for the live app ---------- */
.save-state{font-size:12px;color:var(--muted);white-space:nowrap;min-width:5.5em;text-align:right}
.save-state.bad{color:var(--danger);font-weight:600}
.proj-name:disabled{opacity:.6}
.icon-btn.show{display:grid}
.lb-dl{color:#E7E9F5;font-size:13px;text-decoration:underline}
a.doc-chip{text-decoration:none;color:inherit}
a.doc-chip:hover{border-color:var(--c)}
.d-dl{font-size:12px;color:var(--accent);white-space:nowrap}
.uploading{font-size:12px;color:var(--accent)}
.toast{position:fixed;z-index:70;left:50%;transform:translateX(-50%);bottom:calc(20px + env(safe-area-inset-bottom,0px));max-width:min(92vw,460px);background:var(--fg);color:var(--bg);padding:10px 14px;border-radius:10px;box-shadow:var(--shadow);font-size:13px}
.modal{position:fixed;inset:0;z-index:60;background:rgba(8,10,18,.55);display:grid;place-items:center;padding:16px}
.modal-card{width:100%;max-width:480px;max-height:90vh;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.modal-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:16px 18px;border-bottom:1px solid var(--line)}
.modal-head h2{margin:0;font:700 18px var(--f-display)}
.modal-body{padding:16px 18px 20px;overflow:auto;display:flex;flex-direction:column;gap:22px}
.set-block{display:flex;flex-direction:column;gap:10px}
.set-block h3{margin:0;font:600 15px var(--f-display)}
.set-block p{margin:0;color:var(--muted)}
.set-row{display:flex;gap:8px;flex-wrap:wrap}
.set-row .field{flex:1;min-width:160px}
.btn.small{height:36px;padding:0 14px}
.btn.alt{background:var(--surface-2);color:var(--fg);border:1px solid var(--line)}
.qr{background:#fff;padding:10px;border-radius:10px;align-self:flex-start;line-height:0}
.secret{font:13px var(--f-mono);word-break:break-all;background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:8px 10px}
.codes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;font:14px var(--f-mono);background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:12px}
.msg-ok{color:#15803D;font-weight:600}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .msg-ok{color:#4ADE80}}
:root[data-theme="dark"] .msg-ok{color:#4ADE80}
a.d-name{color:inherit;text-decoration:none}
a.d-name:hover{text-decoration:underline;color:var(--accent)}