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b{color:var(--primary);font-weight:600}.ruler-edge{position:fixed;background:var(--bg-elevated);z-index:150;display:none}.ruler-edge.visible{display:block}.ruler-edge.top{top:0;left:0;right:0;height:34px;border-bottom:1px solid var(--border)}.ruler-edge.bottom{bottom:0;left:0;right:0;height:34px;border-top:1px solid var(--border)}.ruler-edge.left{top:0;bottom:0;left:0;width:34px;border-right:1px solid var(--border)}.ruler-edge.right{top:0;bottom:0;right:0;width:34px;border-left:1px solid var(--border)}.ruler-edge canvas{display:block}.measure-layer{position:fixed;inset:0;width:100vw;height:100vh;z-index:140;pointer-events:none}.readout{position:fixed;z-index:130;background:color-mix(in srgb,var(--bg-elevated) 92%,transparent);border:1px solid var(--border);border-radius:var(--radius-sm);padding:5px 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h3{margin:0;font-size:1.1rem}.modal-close{background:none;border:0;font-size:1.4rem;cursor:pointer;color:var(--text-secondary);line-height:1}.calib-tabs{display:flex;gap:6px;padding:14px 20px 0;flex-wrap:wrap}.calib-tabs button{flex:1;min-width:140px;border:1px solid var(--border);background:var(--bg-soft);color:var(--text-secondary);padding:9px 10px;border-radius:var(--radius-sm);cursor:pointer;font-size:.85rem;font-weight:600;transition:all .15s}.calib-tabs button.active{background:var(--primary);border-color:var(--primary);color:#fff}.calib-panel{padding:16px 20px 22px;display:none}.calib-panel.active{display:block}.calib-panel p.desc{color:var(--text-secondary);font-size:.9rem;margin-top:0}.calib-result{margin-top:14px;padding:12px 14px;background:var(--bg-soft);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.9rem;display:none}.calib-result.show{display:block}.calib-result.ok{border-color:var(--success)}.field-row{display:flex;align-items:center;gap:10px;margin:14px 0;flex-wrap:wrap}.field-row label{font-size:.88rem;color:var(--text-secondary)}.field-row input[type=number]{width:110px;padding:8px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);color:var(--text);font-size:.95rem}.card-preview{position:relative;height:190px;background:var(--bg-soft);border:1px dashed var(--border);border-radius:var(--radius-sm);display:grid;place-items:center;overflow:hidden}.card-outline{border:3px solid var(--primary);border-radius:12px;background:color-mix(in srgb,var(--primary) 8%,transparent);box-shadow:0 6px 18px #00000040}.card-outline:after{content:"";display:block;width:100%;height:100%}.card-slider{width:100%;margin-top:14px;accent-color:var(--primary)}.section{padding:56px 0}.section.alt{background:var(--bg-elevated);border-block:1px solid var(--border)}.section-head{text-align:center;max-width:720px;margin:0 auto 34px}.section-head h2{font-size:clamp(1.4rem,2.8vw,2rem);margin:0 0 10px;letter-spacing:-.01em}.section-head p{color:var(--text-secondary);margin:0}.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}.card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);padding:22px;transition:transform .15s,box-shadow .15s}.section.alt .card{background:var(--bg)}.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.card .icon{width:40px;height:40px;border-radius:10px;background:var(--primary-soft);display:grid;place-items:center;font-size:1.15rem;margin-bottom:12px}.card h3{margin:0 0 8px;font-size:1.03rem}.card p{margin:0;color:var(--text-secondary);font-size:.92rem}.step-card{text-align:center;padding:26px 22px}.step-num{width:36px;height:36px;margin:0 auto 12px;border-radius:50%;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:700}.tag{display:inline-block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding:3px 9px;border-radius:999px;margin-bottom:10px}.tag.fastest{background:#dcfce7;color:#15803d}.tag.common{background:#dbeafe;color:#1d4ed8}.tag.accurate{background:#fef3c7;color:#b45309}[data-theme=dark] .tag.fastest{background:#14331f;color:#4ade80}[data-theme=dark] .tag.common{background:#16233c;color:#60a5fa}[data-theme=dark] .tag.accurate{background:#3a2c10;color:#fbbf24}.faq-list{max-width:780px;margin:0 auto}.faq-item{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-elevated);margin-bottom:10px;overflow:hidden}.section.alt .faq-item{background:var(--bg)}.faq-item summary{cursor:pointer;padding:15px 44px 15px 18px;font-weight:600;font-size:.98rem;list-style:none;position:relative}.faq-item 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p{color:var(--text-secondary);font-size:.96rem}.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:20px}.contact-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.contact-card h3{margin:0 0 8px;font-size:1rem}.contact-form{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-top:26px}.contact-form h2{margin-top:0}.form-field{margin-bottom:14px}.form-field label{display:block;font-size:.87rem;font-weight:600;margin-bottom:6px}.form-field input,.form-field textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);color:var(--text);font-size:.95rem;font-family:inherit}.form-field input:focus,.form-field textarea:focus{outline:2px solid color-mix(in srgb,var(--primary) 45%,transparent);border-color:var(--primary)}.form-field textarea{min-height:130px;resize:vertical}.form-msg{font-size:.9rem;margin-top:10px;display:none}.form-msg.show{display:block}.form-msg.ok{color:var(--success)}.form-msg.err{color:#dc2626}.kp-content h2{margin-top:36px}.kp-content ul{color:var(--text-secondary);font-size:.96rem}.kp-content li{margin-bottom:6px}.table-wrap{overflow-x:auto;margin-top:14px}table.ref-table{width:100%;border-collapse:collapse;font-size:.92rem;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}.ref-table th,.ref-table td{padding:9px 14px;border-bottom:1px solid var(--border);text-align:left}.ref-table th{background:var(--bg-soft);font-weight:600}.ref-table tr:last-child td{border-bottom:0}.site-footer{background:var(--bg-elevated);border-top:1px solid var(--border);padding:40px 0 0;margin-top:20px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.footer-brand p{color:var(--text-secondary);font-size:.9rem;margin:12px 0 0;max-width:420px}.footer-col h4{margin:0 0 12px;font-size:.92rem}.footer-col a{display:block;color:var(--text-secondary);font-size:.88rem;margin-bottom:8px}.footer-col a:hover{color:var(--primary)}.footer-bottom{border-top:1px solid var(--border);margin-top:30px;padding:16px 0;text-align:center;color:var(--text-secondary);font-size:.84rem}.footer-bottom p{margin:0}@media(max-width:820px){.main-nav{display:none;position:absolute;top:var(--header-h);left:0;right:0;background:var(--bg-elevated);border-bottom:1px solid var(--border);flex-direction:column;padding:10px 20px;margin-left:0}.main-nav.open{display:flex}.mobile-menu-btn{display:grid}.footer-grid{grid-template-columns:1fr;gap:22px}.toolbar{font-size:.8rem;gap:8px}.kbd-hint{display:none}}