*{box-sizing:border-box}
:root{--bg:#12161c;--card:#1b212b;--card2:#222a36;--text:#f2ede3;--muted:#a8b0bd;--gold:#d9a420;--line:#2f3947;--danger:#e0655a}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;padding-bottom:84px}
.app-header{display:flex;justify-content:space-between;align-items:center;padding:16px 16px 8px;position:sticky;top:0;background:var(--bg);z-index:5}
.brand{font-weight:800;font-size:20px;display:flex;gap:8px;align-items:center}
.build{font-size:12px;color:var(--muted);border:1px solid var(--line);padding:4px 8px;border-radius:999px}
main{max-width:760px;margin:0 auto;padding:8px 16px 16px}
.view{display:none}.view.active{display:block}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;margin-bottom:14px}
.hero h2{margin:4px 0 8px;font-size:24px;line-height:1.2}
h3{margin:0 0 12px}
.muted{color:var(--muted)}.small{font-size:13px;line-height:1.45}
.btn{display:inline-block;background:var(--card2);color:var(--text);border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:15px;cursor:pointer;text-align:center}
.btn.primary{background:var(--gold);color:#17130a;border-color:var(--gold);font-weight:700}
.btn.subtle{background:transparent;color:var(--muted)}
.btn.small{padding:8px 10px;font-size:13px}
.btn.big{width:100%;padding:14px;font-size:16px}
.btn-row{display:flex;gap:10px;margin-top:12px}.btn-row .btn{flex:1}
.file-btn{cursor:pointer}
.file-input{position:absolute;opacity:0;width:1px;height:1px;overflow:hidden}
.field{margin-bottom:12px}.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;background:#0f1319;color:var(--text);border:1px solid var(--line);border-radius:10px;padding:12px;font-size:16px;font-family:inherit}
.check-row{display:flex;gap:10px;align-items:flex-start;margin:12px 0}
.fit-preview{width:160px;border-radius:8px;border:1px solid var(--line);display:block;margin:10px 0}
.kdp-item{background:var(--card2);border:1px solid var(--line);border-radius:12px;padding:12px}
.kdp-item b{display:block}
.kdp-item .kdp-note{color:var(--muted);font-size:13px;margin-top:4px}
.kdp-item .kdp-fix{margin-top:8px}
.cover-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:10px}
.cover-grid img{width:100%;border-radius:8px;border:1px solid var(--line);cursor:pointer}
.cover-grid .cov-cap{font-size:12px;color:var(--muted);text-align:center}
.match-item{background:var(--card2);border:1px solid var(--line);border-radius:12px;padding:12px}
.match-item .m-top{display:flex;gap:12px}
.match-item img{width:64px;height:auto;border-radius:6px;border:1px solid var(--line);align-self:flex-start}
.match-item .m-title{font-weight:700}
.match-item .m-meta{color:var(--muted);font-size:13px;margin-top:4px}
.chip{display:inline-block;background:#0f1319;border:1px solid var(--line);border-radius:999px;padding:2px 8px;font-size:12px;color:var(--gold);margin-top:6px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.row-between{display:flex;justify-content:space-between;align-items:center;gap:10px}
.feat{padding-left:20px;color:var(--muted);line-height:1.6}
.cover-row{display:flex;gap:14px;align-items:flex-start;margin-bottom:14px}
.cover-row img{width:110px;border-radius:8px;border:1px solid var(--line)}
.cover-empty{width:110px;height:150px;background:var(--card2);border:1px dashed var(--line);border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px;text-align:center;padding:8px}
.list{display:flex;flex-direction:column;gap:10px}
.ch-item{background:var(--card2);border:1px solid var(--line);border-radius:12px;padding:12px}
.ch-item .ch-top{display:flex;gap:8px;align-items:center}
.ch-item .ch-title{flex:1;font-weight:700;cursor:pointer;text-align:left;background:none;border:0;color:var(--text);font-size:16px;padding:0}
.ch-item .ch-meta{color:var(--muted);font-size:13px;margin-top:4px}
.ch-actions{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.ch-actions button{background:#0f1319;color:var(--text);border:1px solid var(--line);border-radius:8px;padding:8px 10px;font-size:13px}
.ch-actions button.danger{color:var(--danger)}
.toolbar{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0}
.toolbar button{background:var(--card2);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:14px}
.editor{min-height:320px;background:#0f1319;border:1px solid var(--line);border-radius:12px;padding:16px;font-size:17px;line-height:1.65;outline:none}
.editor:focus{border-color:var(--gold)}
.editor img{max-width:100%;height:auto}
.editor h1,.editor h2{line-height:1.3}
.tabs{position:fixed;left:0;right:0;bottom:0;display:flex;background:#0d1015;border-top:1px solid var(--line);padding:8px 8px calc(8px + env(safe-area-inset-bottom));z-index:10}
.tabs button{flex:1;background:none;border:0;color:var(--muted);font-size:14px;padding:10px 4px;border-radius:10px}
.tabs button.on{color:var(--gold);font-weight:700;background:#1b212b}
.toast{position:fixed;left:16px;right:16px;bottom:88px;background:#f2ede3;color:#12161c;border-radius:12px;padding:12px 14px;font-weight:600;text-align:center;z-index:20;box-shadow:0 8px 24px rgba(0,0,0,.4)}