:root{--ink:#17211d;--muted:#68746e;--paper:#fff;--canvas:#f3f5f2;--line:#dfe5df;--green:#195f46;--green-soft:#e7f3ed;--amber:#a55b16;--amber-soft:#fff2de;--shadow:0 12px 40px #14281e14}*{box-sizing:border-box}html{background:var(--canvas)}body{color:var(--ink);background:var(--canvas);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Arial,sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer}.login-page,.center-screen{background:radial-gradient(circle at 80% 15%,#dfeee5 0,#0000 36%),linear-gradient(145deg,#eef2ed,#f8faf7);place-items:center;min-height:100vh;padding:24px;display:grid}.login-card{width:min(440px,100%);box-shadow:var(--shadow);text-align:center;background:#ffffffeb;border:1px solid #ffffffbf;border-radius:24px;padding:42px}.brand-mark{color:#fff;background:var(--green);letter-spacing:-.04em;border-radius:16px;place-items:center;width:54px;height:54px;margin:0 auto 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input{width:18px;height:18px;accent-color:var(--green)}.add-line{margin-top:12px}.invoice-footer{grid-template-columns:1fr 360px;align-items:start;gap:24px;margin-top:22px;display:grid}.totals-box{border:1px solid var(--line);border-radius:12px;overflow:hidden}.totals-box div{border-top:1px solid var(--line);justify-content:space-between;padding:11px 14px;display:flex}.totals-box div:first-child{border-top:0}.totals-box .grand-total{color:var(--green);background:var(--green-soft);font-size:18px}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width:850px){.app-shell{padding:24px 14px 40px}.topbar{display:grid}.header-actions{flex-wrap:wrap}.kpi-grid,.toolbar{grid-template-columns:1fr}.login-card{padding:30px 22px}.app-nav{width:100%;overflow-x:auto}.app-nav button{white-space:nowrap}.workspace-grid,.form-grid{grid-template-columns:1fr}.span-2{grid-column:span 1}.line-items{overflow-x:auto}.line-head,.line-row{min-width:1100px}.invoice-footer{grid-template-columns:1fr}}