:root{
  --navy:#16232F; --navy-2:#1F3145;
  --paper:#EDEEE7; --paper-2:#F6F6F1;
  --timber:#A6743A; --timber-2:#C99456;
  --line:#C7CCC4; --ink:#1F2A24; --sage:#5C6B5D; --white:#FFFFFF;
}
*{box-sizing:border-box;}
body{margin:0;font-family:'Space Grotesk',sans-serif;color:var(--ink);background:var(--paper);}

/* ---- Password gate ---- */
.gate{position:fixed;inset:0;background:var(--navy);display:flex;align-items:center;justify-content:center;z-index:50;}
.gate-box{background:var(--paper-2);padding:32px;border-radius:8px;width:320px;max-width:90vw;text-align:center;}
.gate-box .brand-mark{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--timber);font-weight:600;}
.gate-box h1{font-size:20px;margin:6px 0 20px 0;}
.gate-box input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:4px;font-family:inherit;font-size:14px;margin-bottom:10px;}
.gate-box button{width:100%;padding:10px;background:var(--navy);color:white;border:none;border-radius:4px;font-family:inherit;font-size:14px;cursor:pointer;}
.gate-error{color:#B3462C;font-size:12px;margin-top:8px;min-height:16px;}

.app{display:grid;grid-template-columns:220px 300px 1fr;height:100vh;}
@media (max-width:900px){.app{grid-template-columns:1fr;height:auto;}}

.col-folders{background:var(--navy);color:var(--paper-2);padding:24px 0;display:flex;flex-direction:column;}
.brand{padding:0 20px 20px 20px;border-bottom:1px solid rgba(255,255,255,0.12);margin-bottom:16px;}
.brand-mark{font-size:11px;letter-spacing:0.14em;text-transform:uppercase;color:var(--timber-2);font-weight:600;}
.brand-name{font-size:19px;font-weight:700;margin-top:4px;}
.folder-item{padding:11px 20px;cursor:pointer;font-size:14px;display:flex;justify-content:space-between;align-items:center;border-left:3px solid transparent;transition:background .15s;}
.folder-item:hover{background:rgba(255,255,255,0.06);}
.folder-item.active{background:rgba(255,255,255,0.09);border-left:3px solid var(--timber-2);}
.folder-count{font-family:'IBM Plex Mono',monospace;font-size:11px;color:rgba(255,255,255,0.4);}
.col-folders-footer{margin-top:auto;padding:16px 20px 0 20px;border-top:1px solid rgba(255,255,255,0.12);}
.new-folder-btn{background:none;border:1px solid rgba(255,255,255,0.25);color:rgba(255,255,255,0.7);font-family:inherit;font-size:12px;padding:8px 10px;border-radius:3px;cursor:pointer;width:100%;}
.new-folder-btn:hover{border-color:var(--timber-2);color:var(--timber-2);}

.col-docs{background:var(--paper-2);border-right:1px solid var(--line);overflow-y:auto;}
.col-docs-header{padding:20px;border-bottom:1px solid var(--line);}
.col-docs-header h2{margin:0;font-size:16px;font-weight:600;}
.col-docs-header .hint{font-size:12px;color:var(--sage);margin-top:4px;}
.doc-card{padding:16px 20px;border-bottom:1px solid var(--line);cursor:pointer;transition:background .15s;}
.doc-card:hover{background:rgba(166,116,58,0.06);}
.doc-card.active{background:rgba(166,116,58,0.12);border-left:3px solid var(--timber);}
.doc-title{font-size:14px;font-weight:600;line-height:1.3;}
.doc-meta{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--sage);margin-top:6px;}
.empty-state{padding:40px 20px;color:var(--sage);font-size:13px;text-align:center;}
.add-doc-btn{margin:16px 20px;background:var(--navy);color:var(--paper-2);border:none;font-family:inherit;font-size:12px;padding:9px 12px;border-radius:3px;cursor:pointer;}
.add-doc-btn:hover{background:var(--navy-2);}

.col-reader{overflow-y:auto;background:var(--paper);}
.reader-empty{height:100%;display:flex;align-items:center;justify-content:center;color:var(--sage);font-size:14px;flex-direction:column;gap:8px;}
.reader-empty .big{font-size:13px;letter-spacing:0.08em;text-transform:uppercase;color:var(--sage);}
.reader-inner{max-width:720px;margin:0 auto;padding:48px 40px 80px 40px;}
.reader-title{font-size:30px;font-weight:700;line-height:1.15;margin:0 0 6px 0;}
.reader-folder-tag{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:0.08em;text-transform:uppercase;color:var(--timber);margin-bottom:18px;}
.doc-body{font-family:'Source Serif 4',serif;font-size:17px;line-height:1.65;color:var(--ink);}
.doc-body h3{font-family:'Space Grotesk',sans-serif;font-size:15px;text-transform:uppercase;letter-spacing:0.05em;color:var(--navy);margin:28px 0 8px 0;}
.doc-body p{margin:0 0 14px 0;}
.doc-body ul{margin:0 0 14px 0;padding-left:20px;}

.full-doc-frame{width:100%;border:none;display:block;background:var(--paper);}
.full-doc-wrap{padding:0 0 40px 0;}
.full-doc-wrap .title-block,.full-doc-wrap .add-doc-btn{margin-left:40px;margin-right:40px;}

.title-block{margin-top:44px;border:1px solid var(--navy);border-radius:2px;overflow:hidden;}
.title-block-head{background:var(--navy);color:var(--paper-2);font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:0.1em;text-transform:uppercase;padding:8px 14px;display:flex;justify-content:space-between;}
.rev-row{display:grid;grid-template-columns:56px 100px 1fr;border-top:1px solid var(--line);cursor:pointer;}
.rev-row:first-child{border-top:none;}
.rev-row:hover{background:rgba(166,116,58,0.06);}
.rev-row.current{background:rgba(166,116,58,0.1);}
.rev-cell{padding:9px 12px;font-family:'IBM Plex Mono',monospace;font-size:11.5px;display:flex;align-items:center;}
.rev-code{font-weight:700;color:var(--timber);}
.rev-row.current .rev-code::after{content:" · current";font-weight:400;color:var(--sage);font-family:'Space Grotesk',sans-serif;}
.rev-summary{font-family:'Space Grotesk',sans-serif;color:var(--ink);}

.modal-backdrop{position:fixed;inset:0;background:rgba(22,35,47,0.5);display:flex;align-items:center;justify-content:center;z-index:10;}
.modal{background:var(--white);width:480px;max-width:92vw;border-radius:6px;padding:24px;}
.modal h3{margin:0 0 16px 0;font-size:16px;}
.modal label{display:block;font-size:12px;color:var(--sage);margin:12px 0 4px 0;}
.modal input,.modal textarea,.modal select{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:4px;font-family:inherit;font-size:13px;}
.modal textarea{min-height:110px;resize:vertical;}
.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:18px;}
.btn{font-family:inherit;font-size:13px;padding:9px 16px;border-radius:4px;cursor:pointer;border:1px solid var(--line);background:var(--white);}
.btn-primary{background:var(--navy);color:white;border-color:var(--navy);}
.loading{padding:40px;text-align:center;color:var(--sage);font-size:13px;}