.tbx-shell{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(360px,.75fr);gap:18px;align-items:start}.tbx-card{background:#fff;border:1px solid #dbe4ee;border-radius:16px;box-shadow:0 4px 18px rgba(15,31,51,.04)}.tbx-editor-card{overflow:hidden}.tbx-topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:18px 20px;border-bottom:1px solid #e4ebf2}.tbx-titleline{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.tbx-titleline h3{margin:0;font-size:22px}.tbx-status{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:800;background:#eef3f8;color:#60748a}.tbx-status.draft{background:#fff4d8;color:#8a5b00}.tbx-status.published{background:#e7f5ee;color:#176844}.tbx-actions{display:flex;gap:8px;flex-wrap:wrap}.tbx-btn{border:1px solid #cfdae6;background:#fff;color:#17324e;border-radius:10px;padding:9px 13px;font-weight:800;cursor:pointer}.tbx-btn:hover{background:#f5f8fb}.tbx-btn.primary{background:#2f6fde;border-color:#2f6fde;color:#fff}.tbx-btn.primary:hover{background:#275fc2}.tbx-btn.danger{color:#a72b2b}.tbx-btn:disabled{opacity:.5;cursor:not-allowed}.tbx-meta{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:18px 20px}.tbx-field{display:flex;flex-direction:column;gap:6px}.tbx-field.wide{grid-column:1/-1}.tbx-field label{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:#6a7d91;font-weight:800}.tbx-field input{height:42px;border:1px solid #d5dfe9;border-radius:9px;padding:0 12px;font:inherit;color:#142a40}.tbx-toolbar{position:sticky;top:0;z-index:3;display:flex;gap:6px;align-items:center;flex-wrap:wrap;padding:10px 12px;border-top:1px solid #edf1f5;border-bottom:1px solid #dfe7ef;background:#f8fafc}.tbx-tool{min-width:38px;height:36px;border:1px solid #d3dde7;border-radius:8px;background:#fff;color:#19344e;font-weight:800;cursor:pointer;padding:0 10px}.tbx-tool:hover{border-color:#8ea8c1;background:#f0f5f9}.tbx-tool-select{height:36px;border:1px solid #d3dde7;border-radius:8px;background:#fff;padding:0 9px;font-weight:700;color:#19344e}.tbx-sep{width:1px;height:24px;background:#dbe3eb;margin:0 2px}.tbx-editor{min-height:520px;padding:30px 34px;outline:none;font-size:17px;line-height:1.65;color:#1d2f40;background:#fff}.tbx-editor:focus{box-shadow:inset 0 0 0 2px rgba(47,111,222,.12)}.tbx-editor h1,.tbx-editor h2,.tbx-editor h3,.tbx-editor h4{line-height:1.2;color:#112943}.tbx-editor h2{font-size:30px;margin:1.2em 0 .5em}.tbx-editor h3{font-size:23px;margin:1.1em 0 .45em}.tbx-editor p{margin:.75em 0}.tbx-editor table{border-collapse:collapse;width:100%;margin:18px 0}.tbx-editor td,.tbx-editor th{border:1px solid #cdd9e5;padding:9px 11px;min-width:60px}.tbx-editor img{max-width:100%;height:auto}.tbx-foot{display:flex;justify-content:space-between;gap:12px;padding:10px 20px;border-top:1px solid #e7edf3;background:#fbfcfd;color:#6f8092;font-size:12px}.tbx-save-state.saving{color:#8a5b00}.tbx-save-state.saved{color:#176844}.tbx-save-state.error{color:#b42318}.tbx-side{display:flex;flex-direction:column;gap:18px;position:sticky;top:18px}.tbx-preview-card{overflow:hidden}.tbx-preview-head,.tbx-history-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:16px 18px;border-bottom:1px solid #e4ebf2}.tbx-preview-head h3,.tbx-history-head h3{margin:0;font-size:18px}.tbx-device-toggle{display:flex;background:#edf2f6;border-radius:9px;padding:3px}.tbx-device-toggle button{border:0;background:transparent;border-radius:7px;padding:7px 10px;font-weight:800;color:#627589;cursor:pointer}.tbx-device-toggle button.active{background:#fff;color:#17324e;box-shadow:0 1px 4px rgba(15,31,51,.12)}.tbx-preview-stage{background:#eaf0f4;padding:18px;min-height:430px;overflow:auto}.tbx-preview-frame{margin:0 auto;background:#fff;border-radius:10px;box-shadow:0 8px 28px rgba(16,41,67,.12);min-height:390px;width:100%;transition:width .2s ease}.tbx-preview-frame.mobile{width:390px;max-width:100%}.tbx-preview-content{padding:26px 28px;font-size:15px;line-height:1.65;color:#263b4e}.tbx-preview-content h2{font-size:26px;color:#102942}.tbx-preview-content h3{font-size:20px;color:#102942}.tbx-preview-content img{max-width:100%;height:auto}.tbx-preview-content table{border-collapse:collapse;width:100%}.tbx-preview-content td,.tbx-preview-content th{border:1px solid #d3dee8;padding:8px}.tbx-preview-subtitle{font-size:14px;color:#718397;margin-bottom:16px}.tbx-history{padding:8px 10px 12px;max-height:330px;overflow:auto}.tbx-version{display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:10px;padding:10px 8px;border-bottom:1px solid #edf1f5}.tbx-version:last-child{border-bottom:0}.tbx-version-no{width:38px;height:38px;border-radius:10px;background:#edf4ff;color:#2763bf;display:grid;place-items:center;font-weight:900}.tbx-version b{display:block;font-size:13px}.tbx-version small{display:block;color:#73869a;margin-top:2px}.tbx-version button{border:1px solid #d4dfe9;background:#fff;border-radius:8px;padding:7px 9px;font-weight:800;color:#23415f;cursor:pointer}.tbx-empty{padding:22px;text-align:center;color:#74869a}.tbx-callout{margin:16px 0;padding:14px 16px;border-radius:10px}.tbx-callout.info{background:#eef6ff;border-left:4px solid #3977d8}.tbx-callout.warning{background:#fff7df;border-left:4px solid #e2a400}.tbx-callout.example{background:#ecf8f1;border-left:4px solid #2b8b5c}.tbx-help{padding:12px 18px;background:#f8fafc;border-top:1px solid #e6edf3;font-size:12px;color:#6c7f91}.tbx-loading{padding:40px;text-align:center;color:#64778b}.tbx-toast{position:fixed;right:24px;bottom:24px;z-index:9999;background:#102942;color:#fff;padding:12px 16px;border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.2);font-weight:700}.tbx-toast.error{background:#a72b2b}@media(max-width:1050px){.tbx-shell{grid-template-columns:1fr}.tbx-side{position:static}.tbx-preview-stage{min-height:300px}}@media(max-width:680px){.tbx-topbar{align-items:flex-start;flex-direction:column}.tbx-actions{width:100%}.tbx-actions .tbx-btn{flex:1}.tbx-meta{grid-template-columns:1fr}.tbx-field.wide{grid-column:auto}.tbx-editor{padding:22px 18px;min-height:450px;font-size:16px}.tbx-toolbar{position:static;overflow-x:auto;flex-wrap:nowrap}.tbx-tool,.tbx-tool-select{flex:0 0 auto}.tbx-preview-stage{padding:10px}.tbx-preview-content{padding:20px 16px}.tbx-foot{flex-direction:column}.tbx-version{grid-template-columns:40px 1fr}.tbx-version button{grid-column:2;justify-self:start}}