:root{color-scheme:light;--bg:#f2fbf8;--panel:#fff;--panel-soft:#f5fbfa;--text:#24423d;--muted:#6c8580;--accent:#38aa9b;--accent-strong:#248b80;--blue:#719de8;--danger:#d85e6d;--line:#d9ebe7;--shadow:#3d756817}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 12% 0,#dff8f0 0,transparent 34%),radial-gradient(circle at 88% 8%,#e5efff 0,transparent 30%),linear-gradient(180deg,#f8fdfc,#eef8f5);font:16px/1.55 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text)}.shell{width:min(920px,calc(100% - 32px));margin:0 auto;padding:48px 0 64px}header{display:flex;align-items:center;gap:16px;margin-bottom:24px}header h1{margin:0;font-size:clamp(25px,5vw,36px);letter-spacing:-.03em}header p{margin:3px 0 0;color:var(--muted)}.brand-mark{display:grid;place-items:center;width:54px;height:54px;border-radius:18px;background:linear-gradient(135deg,#55c8b7,#83aaf1);color:#fff;font-size:26px;font-weight:850;box-shadow:0 12px 32px #5dbba63d}.card{background:#ffffffeb;border:1px solid #fff;border-radius:22px;padding:28px;box-shadow:0 18px 55px var(--shadow);backdrop-filter:blur(10px)}.card+.card{margin-top:20px}.login-card{max-width:500px;margin:0 auto}.card h2{margin:0 0 6px;letter-spacing:-.02em}.muted,.hint{color:var(--muted)}.hint{font-size:13px;margin-bottom:0}.separator{display:flex;align-items:center;gap:12px;margin:22px 0 0;color:#8ba09c}.separator:before,.separator:after{content:"";height:1px;flex:1;background:var(--line)}.guest-entry{display:block;width:100%;margin-top:14px;text-align:center;text-decoration:none}.toolbar,.section-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.toolbar>form{margin:0}form{display:grid;gap:14px;margin-top:20px}label{display:grid;gap:7px;font-weight:700}input,textarea{width:100%;border:1px solid var(--line);border-radius:13px;background:#fbfefd;color:var(--text);padding:12px 14px;font:inherit;outline:none;transition:border-color .2s,box-shadow .2s,background .2s}input:focus,textarea:focus{border-color:#67bfb3;background:#fff;box-shadow:0 0 0 4px #4eb5a51f}textarea{min-height:320px;resize:vertical;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.button,button{border:0;border-radius:13px;background:var(--accent);color:#fff;padding:12px 18px;font:inherit;font-weight:800;cursor:pointer;transition:background .2s,transform .2s,box-shadow .2s}.button:hover,button:hover{background:var(--accent-strong);box-shadow:0 7px 18px #399c8e2b}.button:active,button:active{transform:translateY(1px)}button:disabled{opacity:.45;cursor:not-allowed}.secondary,.ghost{background:var(--panel-soft);color:var(--text);border:1px solid var(--line)}.secondary:hover,.ghost:hover{background:#eaf7f4;color:var(--text)}.danger{background:#fff1f3;color:var(--danger);border:1px solid #f3ccd2}.danger:hover{background:#ffe8ec;color:#b64051;box-shadow:none}.actions{display:flex;gap:10px;flex-wrap:wrap}.danger-zone{border-top:1px solid var(--line);padding-top:18px}.message{margin:18px 0 0;padding:12px 14px;border-radius:12px;background:#eaf3ff;color:#426a9a}.message.error{background:#fff0f2;color:#a94453}.message.success{background:#e8f8f2;color:#26755f}.count-badge{display:grid;place-items:center;min-width:36px;height:30px;padding:0 10px;border-radius:999px;background:#e7f7f3;color:#287e72;font-weight:800}.code-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:18px}.code-item{display:block;margin:0}.code-open{width:100%;min-height:72px;padding:14px 16px;text-align:left;background:var(--panel-soft);color:var(--text);border:1px solid var(--line);box-shadow:none}.code-open:hover{background:#edf9f6;color:var(--text);border-color:#b9ded7;box-shadow:none}.code-item.active .code-open{background:#e6f6f2;border-color:#78c6ba}.code-name,.code-meta{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.code-name{font-size:15px}.code-meta{margin-top:4px;color:var(--muted);font-size:12px;font-weight:550}.empty-state{margin:18px 0 0;padding:20px;border:1px dashed #badbd4;border-radius:14px;background:#f8fcfb;color:var(--muted);text-align:center}@media(max-width:680px){.shell{padding:24px 0 40px}.card{padding:20px}.toolbar{align-items:stretch;flex-direction:column}.toolbar>form{width:100%}.toolbar button{width:100%}.code-list{grid-template-columns:1fr}textarea{min-height:240px}}
.toolbar button{white-space:nowrap}select{width:100%;border:1px solid var(--line);border-radius:13px;background:#fbfefd;color:var(--text);padding:12px 14px;font:inherit;outline:none}select:focus{border-color:#67bfb3;box-shadow:0 0 0 4px #4eb5a51f}.code-expiry{display:block;margin-top:7px;color:#a35e31;font-size:12px;font-weight:700}.code-expiry.permanent{color:#287e72}
.shell{width:min(1180px,calc(100% - 28px));padding:22px 0 32px}
header{gap:12px;margin-bottom:14px}
header h1{font-size:clamp(23px,3vw,30px)}
header p{margin-top:0;font-size:14px}
.brand-mark{width:44px;height:44px;border-radius:14px;font-size:22px}
.workspace-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(300px,.85fr);gap:16px;align-items:start}
.workspace-grid.single{grid-template-columns:minmax(0,780px);justify-content:center}
.workspace-grid .card+.card{margin-top:0}
.card{border-radius:18px;padding:20px}
.card h2{font-size:21px;margin-bottom:3px}
.muted{font-size:13px;line-height:1.45}
form{gap:10px;margin-top:14px}
label{gap:5px;font-size:14px}
input,textarea,select{padding:10px 12px;border-radius:11px}
textarea{height:clamp(180px,28vh,250px);min-height:160px}
.button,button{border-radius:11px;padding:10px 15px}
.lookup-form{grid-template-columns:minmax(0,1fr) auto;align-items:end}
.lookup-form button{min-width:112px}
.save-toolbar{display:flex;align-items:end;justify-content:space-between;gap:12px}
.save-toolbar>label{width:min(220px,42%);flex:0 1 220px}
.save-toolbar .actions{margin-left:auto}
.actions{gap:8px;flex-wrap:nowrap}
.danger-zone{display:flex;justify-content:flex-end;margin-top:10px;padding-top:10px}
.message{margin-top:12px;padding:9px 12px}
.code-card{position:sticky;top:14px;max-height:calc(100vh - 106px);display:flex;min-height:0;flex-direction:column}
.section-heading{flex:0 0 auto}
.count-badge{height:26px;min-width:32px;font-size:13px}
.code-list{grid-template-columns:1fr;gap:7px;margin-top:12px;min-height:0;overflow:auto;padding-right:3px}
.code-open{min-height:61px;padding:10px 12px}
.code-meta{margin-top:2px}
.code-expiry{margin-top:3px}
.empty-state{margin-top:12px;padding:16px}
.login-card form{margin-top:14px}
.login-card .separator{margin-top:15px}
.login-card .guest-entry{margin-top:10px}
@media(max-width:860px){
  .shell{width:min(920px,calc(100% - 28px))}
  .workspace-grid{grid-template-columns:1fr}
  .code-card{position:static;max-height:none}
  .code-list{grid-template-columns:repeat(2,minmax(0,1fr));max-height:300px}
}
@media(max-width:680px){
  .shell{padding:16px 0 26px}
  header{margin-bottom:12px}
  .card{padding:17px}
  .lookup-form{grid-template-columns:1fr}
  .lookup-form button{width:100%}
  .save-toolbar{align-items:stretch;flex-direction:column}
  .save-toolbar>label{width:100%;flex-basis:auto}
  .save-toolbar .actions{width:100%;margin-left:0}
  .save-toolbar .actions button{flex:1}
  .danger-zone button{width:100%}
  .code-list{grid-template-columns:1fr;max-height:280px}
  textarea{height:210px;min-height:150px}
}
.title-row{display:flex;align-items:center;gap:9px}.mode-badge{display:inline-flex;align-items:center;height:24px;padding:0 9px;border-radius:999px;background:#e8f4ff;color:#4677ad;font-size:12px;font-weight:800;white-space:nowrap}
@media(min-width:681px){
  .shell{padding:14px 0 22px}
  header{margin-bottom:8px}
  .brand-mark{width:40px;height:40px;font-size:20px}
  .card{padding:16px}
  form{margin-top:10px}
  textarea{height:clamp(145px,22vh,200px);min-height:130px}
  .message{margin-top:8px}
  .danger-zone{margin-top:6px;padding-top:6px}
}