:root{--bg:#FAF6F1;--surface:#FFFDF9;--soft:#F1E9DF;--ink:#2A211B;--brand:#4A3020;--muted:#6B5B4E;--line:#E2D6C8;--ok:#2F6B3A;--okbg:#E6F0E3;--err:#8A2B1F;--errbg:#F6E1DC}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Jost',system-ui,sans-serif;font-size:16px;line-height:1.5}
.serif{font-family:'Cormorant Garamond',serif;font-weight:500}
h1.serif{font-size:32px;line-height:1.1;margin:0 0 6px}
h2.serif{font-size:24px;line-height:1.1;margin:0}
.inline{display:inline}
.muted{color:var(--muted)}
.small{font-size:14px}
.wordmark{font-family:'Cormorant Garamond',serif;letter-spacing:.42em;font-size:34px;color:var(--brand);padding-left:.42em}
.wordmark.sm{font-size:22px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;font:inherit;font-size:13px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;cursor:pointer;border-radius:2px;text-decoration:none}
.btn-dark{background:var(--brand);color:var(--bg);border:1px solid var(--brand)}
.btn-dark:hover{background:var(--ink)}
.btn-line{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn-line:hover{background:var(--soft)}
.btn.danger{color:var(--err);border-color:var(--err)}
.btn-block{width:100%}
.btn:disabled{opacity:.45;cursor:not-allowed}
.link{background:none;border:0;padding:8px 4px;font:inherit;font-size:14px;color:var(--brand);text-decoration:underline;text-underline-offset:4px;cursor:pointer}
.alert{background:var(--errbg);color:var(--err);padding:12px 14px;border-radius:2px;font-size:15px;white-space:pre-line}
.spacer{flex:1}
input,textarea{width:100%;font:inherit;color:var(--ink);background:#fff;border:1px solid #CBBBAA;border-radius:2px;padding:12px 14px}
textarea{resize:vertical;min-height:120px}
input:focus,textarea:focus,button:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
/* login */
.login-page{display:grid;place-items:center;padding:16px}
.login{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--line);padding:36px 28px;display:flex;flex-direction:column;gap:16px;text-align:center}
.login label{display:flex;flex-direction:column;gap:6px;text-align:left;font-size:14px;color:var(--muted)}
/* layout */
.top{display:flex;align-items:center;gap:14px;padding:10px 20px;border-bottom:1px solid var(--line);background:var(--surface);position:sticky;top:0;z-index:5}
.top form{margin:0}
.layout{display:grid;grid-template-columns:minmax(360px,460px) 1fr;gap:0;height:calc(100vh - 59px)}
.panel{overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:16px;border-right:1px solid var(--line)}
.card{background:var(--surface);border:1px solid var(--line);padding:20px;display:flex;flex-direction:column;gap:12px}
details.card summary{cursor:pointer;list-style:none}
details.card summary::-webkit-details-marker{display:none}
details.card summary::after{content:" ▾";color:var(--muted)}
details.card[open] summary::after{content:" ▴"}
.row-between{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drop{position:relative;display:block;border:1px dashed #B9A794;background:var(--bg);padding:18px;text-align:center;font-size:14px;color:var(--muted);cursor:pointer}
.drop.over{background:var(--soft);border-color:var(--brand)}
.drop input{position:absolute;inset:0;opacity:0;cursor:pointer}
.files{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.files li{display:flex;align-items:center;gap:6px;background:var(--soft);padding:4px 4px 4px 8px;font-size:13px;max-width:100%}
.files img{width:32px;height:32px;object-fit:cover}
.files span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:180px}
.files button{border:0;background:none;cursor:pointer;font-size:18px;line-height:1;padding:4px 8px;color:var(--muted)}
.ideas{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.chip{border:1px solid var(--line);background:var(--bg);border-radius:20px;padding:6px 12px;font:inherit;font-size:13px;color:var(--ink);cursor:pointer;text-align:left}
.chip:hover{border-color:var(--brand)}
.quote{margin:0;padding:8px 12px;border-left:3px solid var(--line);color:var(--muted);font-style:italic;white-space:pre-line}
.log{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:6px;font-size:14px;max-height:260px;overflow-y:auto}
.log li{display:flex;gap:8px;color:var(--muted)}
.log li::before{content:"•";color:var(--brand)}
.log li.text{color:var(--ink)}
.log li.text::before{content:"›"}
.log li.live::before{content:"";width:10px;height:10px;margin-top:6px;border:2px solid var(--brand);border-right-color:transparent;border-radius:50%;animation:spin 1s linear infinite;flex:none}
@keyframes spin{to{transform:rotate(360deg)}}
.summary{background:var(--okbg);color:#1F3D23;padding:14px;white-space:pre-line;font-size:15px}
.badge{background:var(--brand);color:var(--bg);border-radius:12px;min-width:24px;text-align:center;padding:1px 8px;font-size:13px}
.changes{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.changes li{padding:12px 0;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:4px}
.changes li:first-child{border-top:0}
.changes .p{font-size:15px}
.changes .meta{font-size:12px;color:var(--muted)}
.actions{display:flex;flex-wrap:wrap;gap:8px}
/* viewer */
.viewer{display:flex;flex-direction:column;min-width:0;background:var(--soft)}
.viewer-bar{display:flex;align-items:center;gap:10px;padding:8px 16px;background:var(--surface);border-bottom:1px solid var(--line);flex-wrap:wrap}
.seg{display:inline-flex;border:1px solid var(--line)}
.seg button{border:0;background:none;padding:6px 12px;font:inherit;font-size:13px;cursor:pointer;color:var(--muted)}
.seg button.on{background:var(--brand);color:var(--bg)}
.frame-wrap{flex:1;display:flex;justify-content:center;padding:12px;min-height:0}
iframe{width:100%;height:100%;border:1px solid var(--line);background:#fff;transition:width .2s}
dialog{border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:24px;max-width:min(440px,calc(100vw - 32px))}
dialog::backdrop{background:rgba(42,33,27,.4)}
@media (max-width:900px){
  .layout{grid-template-columns:1fr;height:auto}
  .panel{border-right:0;overflow:visible;padding:16px}
  .viewer{height:80vh}
  .hide-sm{display:none}
  .top{padding:10px 16px}
}