:root{--bg:#f4f6f3;--panel:#ffffff;--ink:#17211d;--muted:#68746e;--line:#d9dfd9;--accent:#0f766e;--accent-strong:#0b5f58;--danger:#b42318;--warning:#8a5a00;--soft:#e8f3ef;--shadow:0 18px 50px rgba(23,33,29,0.08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{min-height:40px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);cursor:pointer;padding:8px 12px}button:hover{border-color:var(--accent)}button:disabled{cursor:not-allowed;opacity:.55}.admin-link,button.primary{border-color:var(--accent);background:var(--accent);color:#fff}.admin-link:hover,button.primary:hover{background:var(--accent-strong)}button.danger{border-color:#f2c1bc;color:var(--danger)}input,select{width:100%;min-height:42px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);padding:9px 10px}input:focus,select:focus{border-color:var(--accent);outline:3px solid rgba(15,118,110,.12)}label span{display:block;margin-bottom:7px;color:var(--muted);font-size:13px}h1,h2,p{margin-top:0}.shell{width:min(1240px,calc(100vw - 32px));margin:0 auto;padding:28px 0 48px}.shell.narrow{width:min(420px,calc(100vw - 32px));min-height:100vh;display:grid;place-items:center}.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:24px}.topbar h1{margin:0;font-size:clamp(30px,4vw,54px);line-height:1}.eyebrow{margin-bottom:5px;color:var(--accent);font-size:clamp(16px,1.6vw,24px);font-weight:700;line-height:1;letter-spacing:0;text-transform:uppercase}.admin-link{border-radius:8px;display:inline-flex;align-items:center;min-height:42px;padding:9px 14px;white-space:nowrap}.workbench{display:grid;grid-template-columns:minmax(0,1fr) 360px;grid-gap:18px;gap:18px;align-items:start}.panel{border:1px solid var(--line);border-radius:8px;background:var(--panel);box-shadow:var(--shadow)}.admin-panel,.calculator-panel,.login-panel,.summary-panel{padding:20px}.field-grid{display:grid;grid-gap:14px;gap:14px;margin-bottom:18px}.field-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.table-block{margin:6px 0 18px;overflow-x:auto}.line-row,.table-head{display:grid;grid-template-columns:minmax(280px,1fr) 90px 140px 140px;grid-gap:10px;gap:10px;align-items:center;min-width:710px}.table-head{padding:0 0 8px;color:var(--muted);font-size:13px}.line-row{padding:7px 0;border-top:1px solid var(--line)}output{min-height:42px;display:flex;align-items:center;justify-content:flex-end;border-radius:8px;background:#f7f9f8;padding:9px 10px;white-space:nowrap}.summary-panel{position:-webkit-sticky;position:sticky;top:18px}.summary-line{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 0;border-bottom:1px solid var(--line)}.summary-line span{color:var(--muted)}.grand-box,.total-box{margin-top:16px;border-radius:8px;padding:16px}.total-box{background:var(--soft)}.grand-box{background:#241d1d;color:#fff}.grand-box span,.total-box span{display:block;margin-bottom:8px;font-size:13px}.grand-box strong,.total-box strong{font-size:28px;line-height:1.1}.pdf-button{width:100%;margin-top:16px;border-color:var(--accent);background:#fff;color:var(--accent-strong);font-weight:700}.pdf-button:hover:not(:disabled){background:var(--soft)}.message{border-radius:8px;margin:12px 0 0;padding:10px 12px;font-size:14px}.message.error{background:#fff0ee;color:var(--danger)}.message.warning{background:#fff7df;color:var(--warning)}.login-panel{width:100%}.login-panel h1{margin-bottom:20px}.login-panel label{display:block;margin-bottom:14px}.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}.tabs button.active{border-color:var(--accent);background:var(--soft);color:var(--accent-strong)}.admin-panel{overflow-x:auto}.admin-grid{display:grid;grid-gap:10px;gap:10px;align-items:center;min-width:780px;padding:8px 0;border-top:1px solid var(--line)}.admin-grid.head{border-top:0;color:var(--muted);font-size:13px}.price-grid{grid-template-columns:minmax(260px,1.2fr) 130px minmax(220px,1fr) 190px}.collection-grid{grid-template-columns:150px minmax(220px,1fr) 190px}.item-grid{grid-template-columns:minmax(260px,1fr) 190px}.height-grid{grid-template-columns:minmax(220px,1fr) 140px 140px 190px}.nonstandard-grid{grid-template-columns:minmax(360px,1fr) 140px 190px}.row-actions{display:flex;gap:8px}.add-row{margin-top:8px;background:#f7f9f8;border-radius:8px;padding:10px}.admin-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.55fr);grid-gap:16px;gap:16px;align-items:start}@media (max-width:920px){.admin-split,.workbench{grid-template-columns:1fr}.summary-panel{position:static}}@media (max-width:640px){.shell{width:min(100vw - 20px,1240px);padding-top:18px}.topbar{align-items:flex-start;flex-direction:column}.field-grid.two{grid-template-columns:1fr}.admin-panel,.calculator-panel,.login-panel,.summary-panel{padding:14px}}