:root{--ink:#212121;--dark:#303033;--pale:#e1dfdb;--bg:#fff;--surface:#fff;--surface2:#f7f7f6;--surface3:#efeeec;--line:rgba(0,0,0,.14);--line2:rgba(0,0,0,.24);--text:#212121;--text2:rgba(0,0,0,.64);--text3:rgba(0,0,0,.44);--accent:#303033;--danger:#b03a2e;--ok:#1e7a4a;--warn:#8a6d1f;--font-display:"Playfair Display",Georgia,serif;--font-body:"Open Sans",Arial,sans-serif;--radius:4px;--radius-lg:8px}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--surface2);color:var(--text);font-family:var(--font-body);font-size:14px;line-height:1.45;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,p{margin:0}a{color:var(--accent)}input,select,textarea,button{font:inherit;color:inherit}.kh-btn{height:36px;padding:0 12px;border-radius:var(--radius);background:var(--dark);color:var(--pale);border:1px solid var(--pale);cursor:pointer;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;transition:opacity .15s ease}.kh-btn:hover:not(:disabled){opacity:.88}.kh-btn--secondary{border:1px solid var(--dark);color:var(--dark);background:#fff}.kh-btn--ghost{border:1px solid transparent;color:var(--text2);background:transparent}.kh-btn--ghost:hover:not(:disabled){background:var(--surface3)}.kh-btn--danger{background:var(--danger);border-color:var(--danger);color:#fff}.kh-btn--sm{height:28px;padding:0 8px;font-size:12px}.kh-btn--icon{width:28px;height:28px;padding:0;justify-content:center}.kh-btn:disabled{opacity:.45;cursor:not-allowed}.kh-field{display:block;margin-bottom:12px}.kh-field>span{display:block;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--text3);margin-bottom:4px}.kh-input,.kh-select,.kh-textarea{width:100%;padding:7px 9px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;outline:none}.kh-input:focus,.kh-select:focus,.kh-textarea:focus{border-color:var(--line2)}.kh-textarea{resize:vertical;min-height:72px;font-family:var(--font-body)}.kh-check{display:flex;align-items:center;gap:8px;margin-bottom:10px;cursor:pointer}.kh-check input{width:16px;height:16px}.kh-badge{display:inline-flex;align-items:center;gap:4px;height:18px;padding:0 6px;border-radius:999px;font-size:10.5px;font-weight:600;letter-spacing:.02em;background:var(--surface3);color:var(--text2);border:1px solid var(--line)}.kh-badge--dirty{background:#fdf3dd;color:var(--warn);border-color:#e6d5a6}.kh-badge--locked{background:#f6e6e3;color:var(--danger);border-color:#e3c4be}.kh-badge--ok{background:#e4f2ea;color:var(--ok);border-color:#bcdcc9}.kh-mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;color:var(--text3)}.kh-spinner{width:16px;height:16px;border-radius:50%;display:inline-block;border:2px solid rgba(0,0,0,.15);border-top-color:var(--accent);animation:kh-spin .7s linear infinite}@keyframes kh-spin{to{transform:rotate(360deg)}}.kh-shell{display:flex;flex-direction:column;height:100%}.kh-header{display:flex;align-items:center;gap:12px;height:52px;flex:0 0 52px;padding:0 14px;background:var(--dark);color:var(--pale);border-bottom:1px solid var(--line)}.kh-header__brand{font-family:var(--font-display);font-size:16px;letter-spacing:.08em;white-space:nowrap}.kh-header__spacer{flex:1 1 auto}.kh-header__user{font-size:12px;color:#e1dfdbbf}.kh-header .kh-btn--secondary{background:transparent;color:var(--pale);border-color:var(--pale)}.kh-body{flex:1 1 auto;display:flex;min-height:0}.kh-col-left{flex:0 0 240px;border-right:1px solid var(--line);background:var(--surface);overflow:auto;display:flex;flex-direction:column}.kh-col-center{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;background:var(--surface3)}.kh-col-right{flex:0 0 330px;border-left:1px solid var(--line);background:var(--surface);overflow:auto}.kh-panel-title{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--text3);padding:10px 12px 6px}.kh-page{display:flex;align-items:center;gap:6px;width:100%;text-align:left;padding:7px 12px;border:0;background:transparent;cursor:pointer;border-left:3px solid transparent}.kh-page:hover{background:var(--surface2)}.kh-page--active{background:var(--surface3);border-left-color:var(--accent);font-weight:600}.kh-page--child{padding-left:26px}.kh-page--hidden{opacity:.5}.kh-page__title{flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.kh-canvas-bar{display:flex;align-items:center;gap:8px;padding:6px 10px;background:var(--surface);border-bottom:1px solid var(--line)}.kh-canvas-scroll{flex:1 1 auto;overflow:auto;padding:12px}.kh-canvas-frame{background:#fff;box-shadow:0 1px 4px #00000024;border:0;display:block}.kh-section-card{border:1px solid var(--line);border-radius:var(--radius);margin:0 10px 8px;background:#fff}.kh-section-head{display:flex;align-items:center;gap:6px;padding:6px 8px;background:var(--surface2);border-bottom:1px solid var(--line);border-radius:var(--radius) var(--radius) 0 0;font-size:12px}.kh-section-head--active{background:var(--surface3)}.kh-block-row{display:flex;align-items:center;gap:6px;padding:5px 8px;font-size:12px;border-top:1px solid var(--surface3);cursor:pointer;background:#fff}.kh-block-row:first-child{border-top:0}.kh-block-row:hover{background:var(--surface2)}.kh-block-row--active{background:#f3eee6}.kh-block-row__t{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:10.5px;color:var(--text3);min-width:44px}.kh-block-row__label{flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.kh-drag{cursor:grab;color:var(--text3);display:inline-flex}.kh-drag:active{cursor:grabbing}.kh-insp{padding:12px}.kh-insp__hd{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.kh-insp__kind{font-size:13px;font-weight:600}.kh-insp__sep{height:1px;background:var(--line);margin:12px 0}.kh-insp__hint{font-size:11.5px;color:var(--text3);margin-top:4px}.kh-rte{border:1px solid var(--line);border-radius:var(--radius);background:#fff}.kh-rte__bar{display:flex;flex-wrap:wrap;gap:2px;padding:4px;border-bottom:1px solid var(--line);background:var(--surface2)}.kh-rte__btn{min-width:26px;height:26px;padding:0 6px;border:1px solid transparent;background:transparent;border-radius:3px;cursor:pointer;font-size:12px;display:inline-flex;align-items:center;justify-content:center}.kh-rte__btn:hover{background:var(--surface3)}.kh-rte__btn--on{background:var(--dark);color:var(--pale)}.kh-rte__body{padding:8px;min-height:64px}.kh-rte__body .ProseMirror{outline:none;min-height:48px}.kh-rte__body .ProseMirror p{margin:0 0 6px}.kh-toast-wrap{position:fixed;left:50%;bottom:32px;transform:translate(-50%);display:flex;flex-direction:column;gap:6px;align-items:center;z-index:9999;pointer-events:none}.kh-toast{pointer-events:auto;cursor:pointer;color:#fff;padding:7px 16px;border-radius:999px;font-size:12.5px;font-weight:600;box-shadow:0 4px 16px #00000040;max-width:70vw}.kh-toast--success{background:var(--ok)}.kh-toast--error{background:var(--danger)}.kh-toast--warning{background:var(--warn)}.kh-toast--info{background:var(--dark)}.kh-modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000006b;z-index:9000;display:flex;align-items:center;justify-content:center;padding:16px}.kh-modal{background:#fff;border-radius:var(--radius-lg);width:100%;max-width:520px;max-height:86vh;overflow:auto;box-shadow:0 24px 64px #00000047}.kh-modal__hd{padding:14px 16px;border-bottom:1px solid var(--line);font-family:var(--font-display);font-size:17px}.kh-modal__bd{padding:16px}.kh-modal__ft{padding:12px 16px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px}.kh-alert{padding:9px 11px;border-radius:var(--radius);font-size:12.5px;margin-bottom:10px}.kh-alert--error{background:#f8e9e6;color:var(--danger);border:1px solid #e6c6c0}.kh-alert--warn{background:#fdf5e2;color:var(--warn);border:1px solid #e8d9ad}.kh-alert--info{background:var(--surface3);color:var(--text2);border:1px solid var(--line)}.kh-table{width:100%;border-collapse:collapse;font-size:12.5px}.kh-table th,.kh-table td{text-align:left;padding:7px 9px;border-bottom:1px solid var(--line);vertical-align:top}.kh-table th{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--text3)}.kh-login{min-height:100%;display:flex;align-items:center;justify-content:center;background:var(--surface2);padding:16px}.kh-login__card{width:100%;max-width:400px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;box-shadow:0 12px 40px #0000001a}.kh-login__wordmark{font-family:var(--font-display);font-size:22px;letter-spacing:.1em;text-align:center;color:var(--ink)}.kh-login__sub{text-align:center;font-size:11px;letter-spacing:.14em;color:var(--text3);margin-top:6px}.kh-login__rule{height:1px;background:var(--line);margin:20px 0;border:0}