@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Noto+Serif+SC:wght@400;500;600;700&family=Source+Sans+3:wght@400;500;600&display=swap');
:root{--paper:#f4f0e8;--paper-deep:#eae4d8;--panel:#faf8f3;--ink:#282720;--muted:#8a8377;--line:#dcd5c8;--accent:#a94f43;--accent-soft:#f0e0da;--sidebar:#eee8dd;--shadow:0 12px 36px #3127190c;--serif:'Noto Serif SC','Songti SC',serif;--sans:'Source Sans 3','PingFang SC',sans-serif;--mono:'DM Mono',monospace}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:14px}button,input,textarea{font:inherit}button{color:inherit;cursor:pointer}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:3px}button{border:0;background:none}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{height:76px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 30px;background:var(--panel);flex-shrink:0}.brand{display:flex;align-items:center;gap:11px;color:inherit;text-decoration:none;min-width:230px}.brand-mark{width:35px;height:35px;background:var(--ink);color:var(--paper);display:grid;place-items:center;font-family:var(--serif);font-size:19px}.brand-copy{display:flex;flex-direction:column;gap:1px}.brand-copy strong{font:600 20px var(--serif);letter-spacing:2px}.brand-copy small{font:9px var(--mono);letter-spacing:1.4px;color:var(--muted)}.topbar-center{display:flex;align-items:center;gap:13px;color:var(--muted);font:11px var(--mono);letter-spacing:1px}.edition-line{height:1px;width:28px;background:var(--line)}.top-actions{display:flex;align-items:center;gap:12px;min-width:230px;justify-content:flex-end}.save-status{font-size:11px;color:var(--muted);display:flex;align-items:center;gap:7px}.save-status i,.status-dot{width:6px;height:6px;border-radius:50%;background:#82947a;display:inline-block}.save-status.saving i{background:#c28c4d}.save-status.error i{background:var(--accent)}.icon-button{width:31px;height:31px;border:1px solid var(--line);border-radius:50%;font-size:17px;color:var(--muted);display:grid;place-items:center;transition:.2s}.icon-button:hover{border-color:var(--accent);color:var(--accent)}.workspace{display:grid;grid-template-columns:220px 290px minmax(0,1fr);flex:1;min-height:calc(100vh - 76px)}.sidebar{background:var(--sidebar);border-right:1px solid var(--line);padding:27px 17px 20px;display:flex;flex-direction:column;min-width:0}.sidebar-heading{display:flex;justify-content:space-between;align-items:center;padding:0 8px;margin-bottom:20px;font:600 12px var(--serif);letter-spacing:.5px}.text-button{font-size:11px;color:var(--accent);padding:4px}.nav-item{height:38px;display:flex;align-items:center;text-align:left;gap:10px;padding:0 10px;border-radius:3px;color:#70695e;font-size:12px;margin-bottom:4px}.nav-item.active{background:#e1d9cb;color:var(--ink);font-weight:600}.nav-symbol{font-size:15px;width:16px;text-align:center}.nav-count{margin-left:auto;font:10px var(--mono);color:var(--muted)}.side-rule{height:1px;background:var(--line);margin:17px 5px 19px}.section-label{font:10px var(--mono);color:var(--muted);letter-spacing:1px;padding:0 9px 12px;display:flex;align-items:center;gap:10px}.tiny-rule{height:1px;background:var(--line);flex:1}.folder-list{display:flex;flex-direction:column;gap:3px}.folder-row{display:flex;align-items:center;gap:2px;min-width:0}.folder-row .folder-item{flex:1;min-width:0}.folder-delete{flex:0 0 22px;width:22px;height:26px;border-radius:3px;color:transparent;font-size:16px;line-height:1;opacity:0;transition:opacity .15s,background .15s,color .15s}.folder-row:hover .folder-delete,.folder-row:focus-within .folder-delete{opacity:1;color:var(--muted)}.folder-delete:hover{background:var(--accent-soft);color:var(--accent)!important}.folder-item{display:flex;align-items:center;gap:9px;text-align:left;width:100%;padding:8px 10px;border-radius:3px;font-size:12px;color:#746d62}.folder-item.active{background:#e1d9cb;color:var(--ink)}.folder-glyph{color:var(--accent);font-size:13px}.folder-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.folder-count{margin-left:auto;color:var(--muted);font:10px var(--mono)}.side-bottom{margin-top:auto;border-top:1px solid var(--line);padding:20px 10px 3px}.quote-mark{font:42px Georgia,serif;color:#b9a994;height:32px}.side-bottom p{font:12px/1.9 var(--serif);color:#736b5f;margin:7px 0 10px}.quote-credit{font:9px var(--mono);color:#a1988a}.document-list{background:#f8f5ee;border-right:1px solid var(--line);padding:27px 20px 15px;display:flex;flex-direction:column;min-width:0}.list-topline{display:flex;justify-content:space-between;align-items:center}.eyebrow{font:9px var(--mono);letter-spacing:1.1px;color:var(--muted)}.new-doc-button{width:28px;height:28px;border:1px solid var(--line);font-size:20px;color:var(--accent);display:grid;place-items:center}.new-doc-button:hover{background:var(--accent);color:#fff;border-color:var(--accent)}.list-title-row{display:flex;align-items:baseline;gap:10px;margin:17px 0 18px}.list-title-row h1{font:600 24px var(--serif);letter-spacing:.2px;margin:0}.list-count{font:10px var(--mono);color:var(--muted)}.search-box{height:36px;display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:#fcfaf5;padding:0 10px;color:var(--muted);margin-bottom:19px}.search-box span{font-size:19px}.search-box input{width:100%;border:0;outline:none!important;background:transparent;font-size:11px;color:var(--ink)}.search-box input::placeholder{color:#aaa194}.document-items{overflow-y:auto;flex:1;margin:0 -8px;padding:0 8px}.doc-card{display:block;width:100%;text-align:left;padding:14px 12px 13px;border-bottom:1px solid #e5dfd4;position:relative;transition:background .15s}.doc-card:hover{background:#f0ebe1}.doc-card.active{background:#ebe4d8}.doc-card.active:before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;background:var(--accent)}.doc-card-title{font:500 13px var(--serif);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:7px}.doc-card-preview{font-size:11px;line-height:1.6;color:#8c8377;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:17px}.doc-card-meta{display:flex;justify-content:space-between;align-items:center;margin-top:11px;font:9px var(--mono);color:#a59b8d}.doc-card-tag{color:var(--accent);font-family:var(--sans)}.empty-list{padding:30px 10px;color:var(--muted);font:12px/1.9 var(--serif);text-align:center}.list-footer{border-top:1px solid var(--line);padding-top:13px;margin-top:10px;display:flex;justify-content:space-between;align-items:center;color:var(--muted);font:10px var(--mono)}.subtle-button{color:var(--accent);font-size:11px}.editor-panel{display:flex;flex-direction:column;min-width:0;background:var(--panel)}.editor-toolbar{height:58px;display:flex;align-items:center;justify-content:space-between;padding:0 27px;border-bottom:1px solid var(--line);gap:15px}.breadcrumb{font-size:11px;color:var(--muted);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.crumb-slash{padding:0 8px;color:#b9b0a2}.toolbar-actions{display:flex;align-items:center;gap:9px;flex-shrink:0}.toolbar-button{font-size:11px;color:#746d62;padding:7px 8px;display:flex;gap:5px;align-items:center}.toolbar-button:hover{color:var(--accent)}.toolbar-button span{font-size:12px}.more-button{font-size:18px;letter-spacing:2px}.editor-layout{display:flex;flex:1;min-height:0;overflow:hidden}.writing-column{flex:1;min-width:0;max-width:100%;margin:0 auto;padding:37px clamp(25px,5vw,76px) 20px;display:flex;flex-direction:column;overflow-y:auto}.paper-meta{display:flex;justify-content:space-between;font:9px var(--mono);letter-spacing:.6px;color:#aaa092;margin-bottom:25px}.paper-meta-right{white-space:nowrap}.title-input{font:600 clamp(24px,2.7vw,35px)/1.5 var(--serif);letter-spacing:.1px;color:var(--ink);background:transparent;border:0;outline:none!important;width:100%;padding:0 0 9px}.title-input::placeholder{color:#c4bcaf}.title-underline{height:1px;background:var(--line);margin-bottom:25px;position:relative}.title-underline:before{content:"";position:absolute;left:0;top:0;width:38px;height:2px;background:var(--accent)}.format-toolbar{display:flex;align-items:center;gap:5px;margin:-13px 0 13px;flex-shrink:0}.format-button{width:27px;height:26px;border:1px solid transparent;border-radius:3px;color:#746d62;display:grid;place-items:center;font-size:13px}.format-button:hover,.format-button:focus-visible{border-color:var(--line);background:var(--paper-deep);color:var(--accent)}.format-button[aria-pressed="true"]{background:var(--accent-soft);color:var(--accent);border-color:var(--line)}.format-hint{font-size:10px;color:#aaa092;margin-left:5px}.body-input{width:100%;flex:1;min-height:280px;resize:none;border:0;outline:none!important;background:transparent;color:var(--ink);font:15px/2.05 var(--serif);letter-spacing:.1px;white-space:pre-wrap;overflow-wrap:anywhere;tab-size:2}.body-input:empty:before{content:attr(data-placeholder);white-space:pre-wrap;color:#c2b9ac;pointer-events:none}.body-input p,.body-input div{margin:0;min-height:1em}.body-input:focus{outline:none}.editor-bottom{display:flex;justify-content:space-between;gap:10px;border-top:1px solid var(--line);padding-top:12px;margin-top:18px;color:#a69c8e;font:9px var(--mono)}.editor-bottom span:last-child{text-align:right}.reference-panel{width:260px;flex-shrink:0;border-left:1px solid var(--line);padding:26px 20px 20px;background:#f4f0e8;display:flex;flex-direction:column;min-height:0}.reference-panel.hidden{display:none}.reference-heading{display:flex;align-items:center;justify-content:space-between}.small{width:25px;height:25px;font-size:17px}.reference-panel h2{font:500 18px var(--serif);margin:28px 0 9px}.reference-intro{font:11px/1.9 var(--serif);color:#8b8174;margin:0 0 20px}.reference-input{background:transparent;border:0;resize:none;outline:none!important;flex:1;min-height:150px;color:var(--ink);font:12px/2 var(--serif)}.reference-input::placeholder{color:#b7ad9f}.reference-foot{border-top:1px solid var(--line);padding-top:12px;color:#a69c8e;font-size:10px;line-height:1.7}.statusbar{height:38px;border-top:1px solid var(--line);background:#f1ece3;display:flex;align-items:center;justify-content:space-between;padding:0 25px;color:#8c8376;font:10px var(--mono);flex-shrink:0}.stats{display:flex;gap:20px}.stats b{color:#504b42;font-weight:500}.statusbar-right{display:flex;align-items:center;gap:8px}.keyboard-hint{margin-right:12px;color:#a59b8d}.toast{position:fixed;bottom:54px;left:50%;transform:translate(-50%,10px);padding:10px 16px;background:var(--ink);color:var(--paper);font-size:12px;opacity:0;pointer-events:none;transition:.2s;box-shadow:var(--shadow);z-index:20}.toast.show{opacity:1;transform:translate(-50%,0)}.action-dialog{width:min(440px,calc(100vw - 32px));border:1px solid var(--line);padding:25px;background:var(--panel);color:var(--ink);box-shadow:0 24px 80px #1b160d30}.action-dialog::backdrop{background:#201c1680;backdrop-filter:blur(2px)}.dialog-head{display:flex;align-items:center;justify-content:space-between}.action-dialog h2{font:600 23px var(--serif);margin:15px 0 18px}.dialog-content{display:flex;flex-direction:column;gap:9px}.dialog-action{display:flex;align-items:center;justify-content:space-between;text-align:left;border:1px solid var(--line);padding:12px 13px;background:transparent;font-size:12px}.dialog-action:hover{border-color:var(--accent);background:var(--accent-soft)}.dialog-action small{color:var(--muted);font-size:10px}.dialog-field{display:flex;flex-direction:column;gap:7px;font-size:11px;color:var(--muted)}.dialog-field input,.dialog-field select{height:38px;background:var(--paper);border:1px solid var(--line);padding:0 10px;color:var(--ink);outline:none}.dialog-primary{background:var(--ink);color:var(--paper);padding:11px 14px;text-align:center;font-size:12px;margin-top:5px}.dialog-danger{color:var(--accent)}.dialog-note{font-size:11px;line-height:1.7;color:var(--muted);margin:0 0 4px}.theme-dark{--paper:#24231f;--paper-deep:#302e28;--panel:#2c2a25;--ink:#eee8dc;--muted:#a69d8f;--line:#48443b;--accent:#d17a6b;--accent-soft:#48332f;--sidebar:#292720;--shadow:0 12px 36px #0003}.theme-dark .topbar,.theme-dark .document-list{background:var(--panel)}.theme-dark .nav-item.active,.theme-dark .folder-item.active,.theme-dark .doc-card.active{background:#3c382f}.theme-dark .doc-card:hover,.theme-dark .search-box{background:#333129}.theme-dark .doc-card{border-color:#403c33}.theme-dark .reference-panel,.theme-dark .statusbar{background:#26251f}.theme-dark .nav-item,.theme-dark .folder-item,.theme-dark .toolbar-button{color:#bcb3a5}.theme-dark .side-bottom p{color:#b7ad9e}.theme-dark .search-box input{color:var(--ink)}.theme-dark .stats b{color:var(--ink)}.theme-dark .format-button{color:#bcb3a5}.theme-dark .format-hint{color:#8f8679}.theme-dark .action-dialog{background:var(--panel)}.theme-dark .dialog-field input,.theme-dark .dialog-field select{background:#24231f;color:var(--ink)}
@media(max-width:1100px){.workspace{grid-template-columns:190px 250px minmax(0,1fr)}.reference-panel{width:220px}.writing-column{padding-left:32px;padding-right:32px}.topbar{padding:0 20px}.brand,.top-actions{min-width:190px}}
@media(max-width:850px){.workspace{grid-template-columns:180px minmax(0,1fr)}.document-list{display:none}.topbar-center{display:none}.brand{min-width:0}.top-actions{min-width:0}.sidebar{padding:22px 12px}.reference-panel{width:210px}.writing-column{padding-left:clamp(22px,5vw,45px);padding-right:clamp(22px,5vw,45px)}}
@media(max-width:600px){.topbar{height:62px;padding:0 14px}.workspace{min-height:calc(100vh - 62px);grid-template-columns:1fr}.sidebar{display:none}.save-status{font-size:0;gap:0}.save-status i{width:7px;height:7px}.editor-toolbar{height:50px;padding:0 14px}.toolbar-actions{gap:1px}.toolbar-button{padding:7px 5px}.toolbar-button span{display:none}.editor-layout{position:relative}.writing-column{padding:25px 22px 16px}.paper-meta{margin-bottom:18px}.title-input{font-size:26px}.body-input{font-size:15px;line-height:1.95}.reference-panel{position:absolute;right:0;top:0;bottom:0;width:min(82vw,300px);z-index:4;box-shadow:-12px 0 30px #21190e12}.statusbar{padding:0 14px}.stats{gap:10px}.keyboard-hint{display:none}.editor-bottom{font-size:8px}.brand-copy strong{font-size:18px}.brand-mark{width:31px;height:31px}.top-actions{gap:7px}}

@media (hover:none){.folder-delete{opacity:1;color:var(--muted)}}


/* Account and cloud-sync layer */
.auth-gate{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--paper);overflow-y:auto}
.auth-gate.hidden{display:none}
.auth-card{width:min(420px,100%);padding:clamp(25px,6vw,48px);border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow)}
.auth-brand-mark{width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--accent);color:var(--accent);font:italic 20px var(--serif);margin-bottom:20px}
.auth-eyebrow{font:9px var(--mono);letter-spacing:1.3px;color:var(--muted);margin:0 0 18px}
.auth-card h1{font:600 clamp(24px,5vw,31px)/1.5 var(--serif);margin:0 0 12px;color:var(--ink)}
.auth-description{font:12px/1.9 var(--serif);color:var(--muted);margin:0 0 26px}
.auth-form{display:flex;flex-direction:column;gap:15px}
.auth-form .dialog-field input{height:42px}
.auth-submit{width:100%;height:42px;cursor:pointer}
.auth-message{font:11px/1.8 var(--sans);color:var(--muted);min-height:20px;margin:16px 0 8px;overflow-wrap:anywhere}
.auth-message.error{color:#a94f43}
.auth-switch-row{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:14px}
.auth-switch-row .text-button{font-size:11px;color:var(--accent)}
.auth-privacy-note{font:9px/1.7 var(--mono);color:var(--muted);margin:23px 0 0}
.account-email{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font:9px var(--mono);color:var(--muted)}
.logout-button{font-size:10px;color:var(--muted);white-space:nowrap}
@media(max-width:600px){.account-email{display:none}.logout-button{font-size:9px;padding:4px}.top-actions{gap:5px}.auth-card{padding:27px 23px}}