:root{--black: #111111;--grey-900: #333333;--grey-600: #666666;--grey-400: #999999;--grey-200: #e5e5e5;--grey-100: #f5f5f5;--white: #ffffff;--border: #dddddd}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,sans-serif;font-size:12px;font-weight:400;line-height:1.5;background:var(--white);color:var(--black);-webkit-font-smoothing:antialiased}.app-shell{min-height:100vh}.top-nav{background:var(--white);border-bottom:1px solid var(--border);padding:10px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.brand{font-size:11px;font-weight:400;color:var(--black);letter-spacing:.12em;text-transform:uppercase}.top-nav nav{display:flex;gap:16px;flex-wrap:wrap}.nav-item{font-size:11px;font-weight:400;color:var(--grey-400);letter-spacing:.02em}.nav-item.active{color:var(--black);text-decoration:underline;text-underline-offset:4px}.container{max-width:960px;margin:0 auto;padding:24px 20px 48px}.app-title{font-size:13px;font-weight:400;color:var(--black);text-align:left;letter-spacing:.06em;text-transform:uppercase;border-bottom:1px solid var(--border);padding-bottom:12px;margin:0 0 20px}.mode-switch{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}.btn{height:32px;border-radius:0;font-size:11px;font-weight:400;letter-spacing:.04em;border:1px solid var(--black);padding:0 14px;cursor:pointer;background:var(--white);color:var(--black);transition:background .15s,color .15s}.btn:hover:not(:disabled){background:var(--black);color:var(--white)}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--black);color:var(--white)}.btn-primary:hover:not(:disabled){background:var(--grey-900)}.btn-ghost{border-color:var(--border);color:var(--grey-600)}.btn-ghost:hover:not(:disabled){background:var(--grey-100);color:var(--black)}.btn-outline{background:var(--white);border-color:var(--border);color:var(--grey-600);min-width:32px;padding:0 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input{flex:1;min-width:200px}.history-actions{display:flex;gap:8px;flex-wrap:wrap}.table{width:100%;border-collapse:collapse}.table th,.table td{border:1px solid var(--border);padding:8px 10px;font-size:11px;font-weight:400;text-align:left}.table th{background:var(--grey-100);color:var(--grey-600);font-size:10px;letter-spacing:.06em;text-transform:uppercase}.link-btn{background:none;border:none;color:var(--black);font-weight:400;font-size:11px;cursor:pointer;text-decoration:underline;text-underline-offset:2px;padding:0}.status{padding:10px 12px;margin-bottom:16px;font-size:11px;font-weight:400;border:1px solid var(--border)}.status.ok{background:var(--grey-100);color:var(--black);border-color:var(--border)}.error-dialog{background:var(--white);border:1px solid var(--black);padding:20px;width:min(400px,100%);text-align:center}.error-dialog p{margin:0 0 16px;font-size:12px;line-height:1.6;color:var(--black)}.error-dialog .btn{min-width:80px}@media (max-width: 768px){.header-grid,.row-2,.grand-body,.actions{grid-template-columns:1fr}.container{padding:16px 12px 32px}.history-toolbar{flex-direction:column;align-items:stretch}.history-actions{width:100%}.history-actions .btn{flex:1}}