*{box-sizing:border-box;margin:0;padding:0}:root{--bg-dark:#050510;--card:#ffffff08;--card-solid:#0d0d1f;--input-bg:#ffffff0d;--border:#ffffff1a;--border-strong:#ffffff2e;--text-main:#fff;--text-dim:#88a;--text-muted:#666;--cyan:#00f3ff;--purple:#bc13fe;--accent:#00f3ff;--accent-dim:#00f3ff1f;--font-body:"Inter", sans-serif;--font-mono:"JetBrains Mono", monospace;--font-heading:"Plus Jakarta Sans", "Inter", sans-serif}body{font-family:var(--font-body);color:var(--text-main);background-color:var(--bg-dark);background-image:radial-gradient(circle at 10% 20%,#00f3ff14 0%,#0000 22%),radial-gradient(circle at 90% 80%,#bc13fe14 0%,#0000 22%);min-height:100vh}a{color:inherit;text-decoration:none}input::-webkit-outer-spin-button,input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield;appearance:textfield}.glass-navbar{z-index:1000;backdrop-filter:blur(12px);background:#050510eb;border-bottom:1px solid #ffffff0f;padding:0 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td{color:var(--text-main);text-transform:uppercase;letter-spacing:.03em;border-bottom:1px solid #ffffff14;padding-top:16px;font-size:.82rem;font-weight:700}.bid-total-row td{color:var(--text-main);border-top:2px solid var(--cyan);font-size:1.1rem;font-weight:800;font-family:var(--font-heading);padding:14px 12px}.bid-footer-notes{color:var(--text-muted);border-top:1px solid #ffffff0f;padding-top:12px;font-size:.8rem;line-height:1.6}.export-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:32px}.export-desc{color:var(--text-dim);margin-bottom:24px;font-size:.9rem}.export-grid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.export-option{border:1px solid 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.2s;display:flex}.faq-item__question::-webkit-details-marker{display:none}.faq-item__question:after{content:"+";font-family:var(--font-mono);color:var(--text-dim);flex-shrink:0;margin-left:16px;font-size:1.1rem;transition:color .2s}.faq-item[open] .faq-item__question:after{content:"−";color:var(--accent)}.faq-item__question:hover{color:var(--cyan)}.faq-item__answer{color:var(--text-dim);padding:0 4px 14px;font-size:.85rem;line-height:1.75}.calc-related{margin-bottom:48px}.related-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;display:grid}.related-card{border:1px solid var(--border);background:#ffffff08;border-radius:10px;flex-direction:column;gap:6px;padding:18px;text-decoration:none;transition:all .2s;display:flex}.related-card:hover{border-color:#00f3ff66;transform:translateY(-2px);box-shadow:0 0 16px #00f3ff1a}.related-icon{font-size:1.5rem}.related-name{color:var(--text-main);font-size:.9rem;font-weight:700}.related-desc{color:var(--text-dim);font-size:.78rem;line-height:1.5}.toast{font-size:.85rem;font-family:var(--font-body);z-index:9999;border-radius:10px;max-width:340px;padding:12px 20px;animation:.3s toastIn,.3s 2.7s forwards toastOut;position:fixed;bottom:24px;right:24px;box-shadow:0 4px 20px #0006}@keyframes toastIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}@keyframes toastOut{to{opacity:0;transform:translateY(12px)}}.toast-success{color:var(--cyan);background:#00f3ff26;border:1px solid #00f3ff66}.toast-warn{color:#ffc107;background:#ffc10726;border:1px solid #ffc10766}.toast-error{color:#ff6b6b;background:#ff4b4b26;border:1px solid #ff4b4b66}@media print{.glass-navbar,.calc-breadcrumb,.tab-control,.page-sections-outer,.calc-page-footer,.calc-back-to-top,.action-bar,.page-title,.section-desc,#tab-calculator,#tab-export{display:none!important}#tab-bid{display:block!important}body{color:#000;background:#fff}.bid-summary-card{background:0 0;border:none;padding:0}.bid-company{color:#000}.bid-table th{color:#333;background:#f0f0f0;border-bottom:2px solid #333}.bid-table td{color:#333;border-bottom:1px solid #ddd}.bid-total-row td{color:#000;border-top:2px solid #333}.bid-header{border-bottom-color:#333}.bid-project-name,.bid-date{color:#555}.bid-footer-notes{color:#666;border-top-color:#ddd}}@media (width<=900px){.calc-grid{grid-template-columns:1fr}.result-card{position:static}.overhead-grid{grid-template-columns:1fr 1fr}.export-grid{grid-template-columns:1fr}}@media (width<=600px){.page-title{font-size:1.8rem}.line-items-header{display:none}.line-item-row{border:1px solid var(--border);background:#ffffff05;border-radius:8px;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:8px;padding:10px}.line-item-row .glass-input.li-desc{grid-column:1/-1}.line-item-total{text-align:left;grid-column:1}.del-row-btn{grid-column:2;justify-self:end}.overhead-grid{grid-template-columns:1fr}.bid-table{font-size:.75rem}.bid-summary-card{padding:16px}.action-bar{flex-direction:column}}[data-theme=light]{--bg-dark:#e8edf5;--card:#fffffff2;--card-solid:#fff;--input-bg:#e8eef4;--border:#0000001a;--border-strong:#00000026;--text-main:#0f172a;--text-dim:#475569;--text-muted:#64748b;--cyan:#0e7490;--purple:#7c3aed;--accent:#0e7490;--accent-dim:#0e74901a}[data-theme=light] body{background-color:var(--bg-dark);background-image:none}[data-theme=light] .glass-navbar{backdrop-filter:blur(12px);background:#fffffff2;border-bottom:1px solid #00000014}[data-theme=light] .nav-link.active{color:#0e7490}[data-theme=light] .page-title{background:linear-gradient(135deg,#0e7490 0%,#7c3aed 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.tab-btn.active{color:#0e7490;background:#0e74901f;border-color:#0e749080;box-shadow:0 0 12px #0e74901a}[data-theme=light] .section-block{border-bottom-color:#0000000f}[data-theme=light] .add-row-btn{color:#0e7490;background:#0e74901a;border-color:#0e74904d}[data-theme=light] .add-row-btn:hover{background:#0e74902e;border-color:#0e7490}[data-theme=light] .line-item-row .glass-input{background:#edf2f9}[data-theme=light] .del-row-btn{color:#dc2626;background:#dc262614}[data-theme=light] .del-row-btn:hover{background:#dc262626}[data-theme=light] .result-divider{background:#00000014}[data-theme=light] .hero-value{background:linear-gradient(135deg,#0e7490,#7c3aed);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}[data-theme=light] .sqft-row{border-top-color:#0000000f}[data-theme=light] .action-btn{color:#0e7490;background:#0e749014;border-color:#0e74904d}[data-theme=light] .action-btn:hover{background:#0e749026;box-shadow:0 0 8px #0e74901a}[data-theme=light] .bid-summary-card{background:#fff;border-color:#0000001f;box-shadow:0 2px 12px #00000017}[data-theme=light] .bid-header{border-bottom-color:#0e7490}[data-theme=light] .bid-company{color:#0e7490}[data-theme=light] .bid-project-name{color:#475569}[data-theme=light] .bid-date{color:#64748b}[data-theme=light] .bid-table th{color:#0e7490;background:#eff9fb;border-bottom-color:#0000001f}[data-theme=light] .bid-table td{color:#334155;border-bottom-color:#0000000f}[data-theme=light] .bid-table .section-row td{color:#0f172a;border-bottom-color:#0000001a}[data-theme=light] .bid-total-row td{color:#0f172a;border-top-color:#0e7490}[data-theme=light] .bid-footer-notes{color:#64748b;border-top-color:#00000014}[data-theme=light] .export-card{background:#fff;border-color:#0000001f;box-shadow:0 2px 12px #00000017}[data-theme=light] .export-option{background:#f0f4f9;border-color:#0000001a}[data-theme=light] .export-btn{color:#0e7490;background:#0e749014;border-color:#0e74904d}[data-theme=light] .export-btn:hover{background:#0e749026;box-shadow:0 0 8px #0e74901a}[data-theme=light] .how-step{background:#fff;border-color:#0000001a;box-shadow:0 1px 4px #0000000f}[data-theme=light] .step-num{color:#0e7490;background:#0e74901a;border-color:#0e74904d}[data-theme=light] .faq-list{gap:8px}[data-theme=light] .faq-item{background:#fff;border:1px solid #0000001a;border-radius:10px;transition:box-shadow .2s,border-color .2s;overflow:hidden;box-shadow:0 1px 4px #0000000f}[data-theme=light] .faq-item:hover{border-color:#0e749059;box-shadow:0 2px 10px #0e749014}[data-theme=light] .faq-item[open]{border-color:#0e749066 #0e749066 #0e749066 #0e7490;border-left-style:solid;border-left-width:3px;box-shadow:0 2px 12px #0e74901a}[data-theme=light] .faq-item__question{color:#0f172a;padding:14px 16px}[data-theme=light] .faq-item__question:after{color:#64748b}[data-theme=light] .faq-item[open] .faq-item__question:after,[data-theme=light] .faq-item__question:hover{color:#0e7490}[data-theme=light] .faq-item__answer{color:#475569;border-top:1px solid #0000000f;padding:12px 16px 16px}[data-theme=light] .related-card{background:#fff;border-color:#0000001a;box-shadow:0 1px 4px #0000000f}[data-theme=light] .related-card:hover{border-color:#0e749066;box-shadow:0 4px 16px #0e74901a}[data-theme=light] .toast-success{color:#0e7490;background:#eff9fb;border-color:#0e749066;box-shadow:0 4px 20px #00000026}[data-theme=light] .toast-warn{color:#92400e;background:#fffbeb;border-color:#a1620766;box-shadow:0 4px 20px #00000026}[data-theme=light] .toast-error{color:#dc2626;background:#fff1f2;border-color:#dc262666;box-shadow:0 4px 20px #00000026}@media (width<=600px){[data-theme=light] .line-item-row{background:#f0f4f9;border-color:#0000001a}}