.converter{--cv-paper:#fdfcf9;--cv-ink:#081f3e;--cv-text:#22314a;--cv-muted:#535f75;--cv-accent:#b27257;--cv-accent-text:#96563c;--cv-accent-soft:#f7ebe5;--cv-rule:#081f3e33;--cv-rule-soft:#081f3e1a;--cv-card:#ffffffb8;--cv-grid:#081f3e0b;--cv-btn-bg:#081f3e;--cv-btn-text:#fff;--cv-cad:#212830;--cv-mono:ui-monospace, "SF Mono", "Cascadia Mono", "Segoe UI Mono", "Roboto Mono", Menlo, Consolas, "Liberation Mono", monospace;max-width:1208px;color:var(--cv-text);grid-template-columns:minmax(300px,420px) minmax(0,1fr);align-items:start;gap:clamp(20px,3vw,36px);margin:0 auto;padding:clamp(16px,3vw,32px) 24px;font-size:16px;line-height:1.55;display:grid}@media (prefers-color-scheme:dark){.converter{--cv-paper:#0e2a52;--cv-ink:#f1f5fb;--cv-text:#d6dfec;--cv-muted:#a9b8cd;--cv-accent:#e2b29c;--cv-accent-text:#e9c0ad;--cv-accent-soft:#e2b29c24;--cv-rule:#d6e4ff42;--cv-rule-soft:#d6e4ff1f;--cv-card:#d6e4ff0d;--cv-grid:#c8dcff0f;--cv-btn-bg:#d09b83;--cv-btn-text:#081f3e}}.cv-panel{flex-direction:column;gap:16px;min-width:0;display:flex}.cv-step{border:1.5px solid var(--cv-rule);background:var(--cv-card);border-radius:12px;min-width:0;padding:18px 20px 20px;transition:border-color .15s}.cv-step.is-active{border-color:var(--cv-ink)}.converter .cv-step-title{font-family:var(--cv-mono);letter-spacing:.1em;text-transform:uppercase;max-width:none;color:var(--cv-ink);align-items:center;gap:10px;margin:0 0 14px;font-size:14px;font-weight:600;line-height:1.3;display:flex}.cv-step-n{letter-spacing:0;border:1px solid;border-radius:50%;flex:none;place-items:center;width:26px;height:26px;font-size:12.5px;display:grid}.cv-step.is-active .cv-step-n{background:var(--cv-accent);border-color:var(--cv-accent);color:#fff}.converter .cv-step-title:after{content:"";background:linear-gradient(135deg, transparent 45%, var(--cv-accent) 45%, var(--cv-accent) 58%, transparent 58%) left center / 9px 9px no-repeat, linear-gradient(135deg, transparent 45%, var(--cv-accent) 45%, var(--cv-accent) 58%, transparent 58%) right center / 9px 9px no-repeat, linear-gradient(var(--cv-rule), var(--cv-rule)) center / 100% 1px no-repeat;flex:1;min-width:24px;height:9px}.cv-hint{color:var(--cv-muted);text-wrap:pretty;margin:10px 0 0;font-size:14px}.cv-hint a{color:var(--cv-accent-text)}.cv-formats{border:1.5px solid var(--cv-ink);border-radius:10px;grid-template-columns:1fr 1fr;display:grid;overflow:hidden}.cv-format{cursor:pointer;min-height:52px;color:var(--cv-ink);justify-content:center;align-items:center;gap:8px;padding:8px 12px;transition:background-color .15s;display:flex;position:relative}.cv-format+.cv-format{border-left:1px solid var(--cv-rule)}.cv-format:hover{background:var(--cv-rule-soft)}.cv-format.is-checked{background:var(--cv-btn-bg);color:var(--cv-btn-text)}.cv-format input{opacity:0;pointer-events:none;position:absolute}.cv-format:has(input:focus-visible){outline:2px solid var(--cv-accent);outline-offset:-4px}.cv-format-name{font-family:var(--cv-mono);letter-spacing:.06em;font-size:18px;font-weight:600}.cv-beta{font-family:var(--cv-mono);letter-spacing:.08em;text-transform:uppercase;opacity:.85;border:1px solid;border-radius:999px;padding:1px 6px;font-size:11px;font-weight:500}.converter .cv-dropzone{border-color:color-mix(in srgb, var(--cv-accent) 60%, var(--cv-rule));background:var(--cv-paper);box-shadow:none;padding:28px 18px}.converter .cv-dropzone.dragging,.converter .cv-dropzone:hover:not(.disabled){border-color:var(--cv-accent);background:color-mix(in srgb, var(--cv-accent-soft) 55%, var(--cv-paper))}.converter .cv-dropzone .dropzone-button{background:var(--cv-btn-bg);color:var(--cv-btn-text)}.converter .cv-dropzone.disabled .dropzone-button{opacity:.5}.cv-drop-icon{background:var(--cv-accent-soft);width:52px;height:52px;color:var(--cv-accent-text);border-radius:12px;place-items:center;margin-bottom:4px;display:grid}.cv-limit{font-family:var(--cv-mono);color:var(--cv-accent-text);margin-bottom:4px;font-size:12.5px}.cv-drop-formats{text-wrap:balance;font-size:13px}.cv-uploaded{color:var(--cv-ink);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;font-weight:600;display:flex}.converter .cv-login h3{color:var(--cv-ink);text-wrap:balance;margin:0 0 6px;font-size:19px;line-height:1.3}.cv-login .register-prompt{text-align:left;display:block}.cv-login .register-prompt>.muted{text-wrap:pretty;max-width:none;color:var(--cv-muted);margin:0 0 16px;font-size:15px}.cv-login .register-prompt-actions{flex-wrap:wrap;justify-content:flex-start;gap:10px;margin:0;display:flex}.cv-login .register-prompt-actions button{flex:180px;min-width:0;min-height:46px;padding:10px 16px;font-size:15px}.cv-login .register-prompt-actions button.primary{background:var(--cv-btn-bg);border-color:var(--cv-btn-bg);color:var(--cv-btn-text)}.cv-login .idp-buttons{margin-top:10px}.cv-login .error-text{margin:12px 0 0;font-size:14px}.converter button.link{color:var(--cv-accent-text);text-underline-offset:3px;background:0 0;border:none;padding:0;font-weight:600;text-decoration:underline}.converter button.link:hover:not(:disabled){color:var(--cv-ink)}.cv-sheet{border:1.5px solid var(--cv-ink);min-height:420px;box-shadow:inset 0 0 0 6px var(--cv-paper), inset 0 0 0 7px var(--cv-rule);background:linear-gradient(var(--cv-grid) 1px, transparent 1px) 0 0 / 24px 24px, linear-gradient(90deg, var(--cv-grid) 1px, transparent 1px) 0 0 / 24px 24px, var(--cv-paper);border-radius:4px;flex-direction:column;padding:20px;display:flex;position:relative}.cv-sheet>.center{flex:1}.cv-sheet .wait-leave{background:var(--cv-accent-soft);color:var(--cv-ink)}.cv-sheet-empty{text-align:center;justify-content:center;align-items:center}.cv-sheet-empty p{max-width:30em;color:var(--cv-muted);text-wrap:balance;margin:0 0 56px}.cv-sheet-empty:after{content:"soscad · конвертер    DXF / DWG    мм";white-space:pre;border:1px solid var(--cv-rule);font-family:var(--cv-mono);letter-spacing:.06em;color:var(--cv-muted);background:var(--cv-paper);padding:6px 10px;font-size:11px;position:absolute;bottom:14px;right:14px}.cv-result{flex-direction:column;gap:16px;display:flex}.cv-preview{background:var(--cv-cad);border-radius:8px;margin:0;overflow:hidden;box-shadow:0 2px 4px #081f3e1f,0 12px 28px #081f3e29}.cv-preview-bar{font-family:var(--cv-mono);letter-spacing:.04em;color:#c3ccd8;background:#2b333d;border-bottom:1px solid #3a4450;justify-content:space-between;gap:12px;padding:7px 12px;font-size:12px;display:flex}.cv-preview img{object-fit:contain;width:100%;max-height:68vh;display:block}.cv-preview-empty{color:#c3ccd8;text-align:center;place-items:center;min-height:280px;padding:24px;display:grid}.cv-actions{flex-wrap:wrap;gap:10px;display:flex}.converter .cv-download{min-height:50px;color:var(--cv-ink);background:var(--cv-card);border-color:var(--cv-rule);justify-content:center;align-items:center;gap:8px;padding:10px 22px;font-size:16px;font-weight:700;display:inline-flex}.converter .cv-download.primary{background:var(--cv-btn-bg);border-color:var(--cv-btn-bg);color:var(--cv-btn-text)}.cv-error{margin:0;font-size:15px}.cv-edit{border-left:3px solid var(--cv-accent);background:var(--cv-accent-soft);border-radius:0 8px 8px 0;flex-wrap:wrap;align-items:center;gap:12px 20px;padding:14px 16px;display:flex}.cv-edit p{color:var(--cv-ink);flex:260px;margin:0;font-size:15px}.converter .cv-edit-link{border-color:var(--cv-ink);min-height:44px;color:var(--cv-ink);background:0 0;align-items:center;font-size:15px;display:inline-flex}.cv-again{align-self:flex-start}.cv-failure{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;padding:24px 8px;display:flex}.cv-failure strong{color:var(--cv-ink);font-size:20px}.cv-failure p{max-width:32em;margin:0}.cv-failure button{min-height:46px;margin-top:10px;padding:10px 22px}@media (width<=860px){.converter{grid-template-columns:minmax(0,1fr);padding:16px}.cv-sheet{min-height:300px;padding:14px}.cv-sheet-empty p{margin-bottom:64px}}@media (width<=480px){.cv-step{padding:14px 14px 16px}.cv-actions>button{flex:100%}.converter .cv-edit-link{justify-content:center;width:100%}.cv-sheet-empty:after{content:"soscad · DXF / DWG · мм"}}.stair-tool{width:min(1440px,100%);color:var(--text);grid-template-columns:minmax(300px,380px) minmax(0,1fr);align-items:start;gap:20px;margin:0 auto;padding:16px 20px 32px;display:grid}.stair-tool-form{scrollbar-width:thin;flex-direction:column;gap:12px;max-height:calc(100vh - 24px);padding:4px;display:flex;position:sticky;top:12px;overflow:auto}.stair-tool-group{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);flex-direction:column;gap:10px;min-width:0;margin:0;padding:12px 14px 14px;display:flex}.stair-tool-group legend{letter-spacing:.02em;text-transform:uppercase;color:var(--accent-text);margin-left:-6px;padding:0 6px;font-size:13px;font-weight:700}.stair-tool-kinds{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;display:grid}.stair-tool-kind{white-space:normal;text-align:center;color:var(--muted);background:var(--surface-2);border-color:#0000;flex-direction:column;align-items:center;gap:2px;padding:8px 4px;display:flex}.stair-tool-kind strong{color:var(--text);white-space:nowrap;font-size:12px;line-height:1.3}.stair-tool-kind small{font-size:11px;font-weight:500;line-height:1.2}.stair-tool-kind.active{background:var(--accent-soft);border-color:var(--clay);color:var(--accent-text)}.stair-tool-kind .stair-icon{margin-bottom:2px}.stair-tool-row{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:10px;display:grid}.stair-tool-turn{flex-wrap:wrap;align-items:flex-start;gap:10px 14px;display:flex}.stair-tool-turn .stair-tool-field{width:170px}.stair-tool-field,.stair-tool-choice{flex-direction:column;gap:4px;min-width:0;font-size:13px;display:flex}.stair-tool-field-label{color:var(--muted);font-size:13px;font-weight:500}.stair-tool-field-input{align-items:center;gap:6px;display:flex}.stair-tool-field-input em{color:var(--muted);min-width:1.6em;font-size:13px;font-style:normal}.stair-tool-field-hint{color:var(--muted);font-size:12px;line-height:1.35}.stair-tool-choice .segmented{flex-wrap:wrap;align-self:flex-start}.stair-tool-link{color:var(--accent-text);text-underline-offset:2px;white-space:normal;text-align:left;background:0 0;border:none;padding:0;font-size:12px;font-weight:600;text-decoration:underline}.stair-tool-link:hover:not(:disabled){border-color:#0000}.stair-tool-share{flex-direction:column;gap:6px;padding:0 2px;display:flex}.stair-tool-share button{white-space:normal}.stair-tool-result{flex-direction:column;gap:16px;min-width:0;display:flex}.stair-tool-card{border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);flex-direction:column;gap:12px;min-width:0;padding:16px 18px 18px;display:flex}.stair-tool .stair-tool-card h2{letter-spacing:-.01em;max-width:none;margin:0;font-size:18px;font-weight:750;line-height:1.3}.stair-tool-card-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 16px;display:flex}.stair-tool-summary{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;margin:0;display:grid}.stair-tool-summary>div{background:var(--surface-2);border-radius:10px;min-width:0;padding:10px 12px}.stair-tool-summary dt{color:var(--muted);font-size:12px}.stair-tool-summary dd{font-variant-numeric:tabular-nums;overflow-wrap:anywhere;margin:2px 0 0;font-size:18px;font-weight:700}.stair-tool-summary dd.stair-tool-summary-note{color:var(--muted);margin:0;font-size:11px;font-weight:500}.stair-tool-ok{background:var(--success-bg);color:var(--success-text);border-radius:8px;margin:0;padding:8px 10px;font-size:13px}.stair-tool-error{background:var(--warning-bg);color:var(--warning-text);border-radius:8px;margin:0;padding:8px 10px;font-size:13px}.stair-tool-3d{border:1px solid var(--border);background:#f7f5f1;border-radius:10px;height:clamp(320px,52vh,560px);position:relative;overflow:hidden}.stair-tool-3d-host{position:absolute;inset:0}.stair-tool-3d-empty{text-align:center;color:#5b6a80;background-image:linear-gradient(#081f3e0f 1px,#0000 1px),linear-gradient(90deg,#081f3e0f 1px,#0000 1px);background-size:24px 24px;justify-content:center;align-items:center;padding:20px;font-size:14px;display:flex;position:absolute;inset:0}.stair-tool-3d-controls{background:#f3f0eceb;position:absolute;top:10px;left:10px}.stair-tool-3d-controls button{color:#5b6a80;padding:5px 10px;font-size:13px}.stair-tool-3d-controls button:hover:not(:disabled){color:#081f3e}.stair-tool-3d-hint{color:#5b6a80;pointer-events:none;background:#f7f5f1d9;border-radius:6px;margin:0;padding:3px 8px;font-size:12px;position:absolute;bottom:8px;left:10px}.stair-tool-hint-touch{display:none}@media (pointer:coarse){.stair-tool-hint-mouse{display:none}.stair-tool-hint-touch{display:inline}}.stair-tool-downloads{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.stair-tool-downloads button{align-items:center;gap:6px;display:inline-flex}.stair-tool-drawing-controls{flex-wrap:wrap;gap:8px;display:flex}.stair-tool-views .stair-drawing-svg{max-height:72vh}.stair-tool-table td{white-space:normal}.stair-tool-cta{background:var(--accent-soft);box-shadow:none;border-color:#0000;flex-flow:wrap;justify-content:space-between;align-items:center;gap:12px 20px}.stair-tool .stair-tool-cta h2{font-size:17px}.stair-tool-cta p{color:var(--muted);margin:4px 0 0;font-size:14px}.stair-tool-cta .button{white-space:normal;text-align:center;padding:11px 18px}.stair-tool .button.primary{background:var(--primary);border-color:var(--primary);color:var(--primary-text)}.stair-norms-summary{background:var(--success-bg);color:var(--success-text);border-radius:8px;align-items:flex-start;gap:8px;margin:0;padding:8px 10px;font-size:14px;line-height:1.35;display:flex}.stair-norms-summary .icon{flex-shrink:0;margin-top:1px}.stair-norms-summary.violation{background:color-mix(in srgb, var(--danger) 12%, var(--surface));color:var(--danger)}.stair-norms-summary.advice{background:var(--warning-bg);color:var(--warning-text)}.stair-norms-summary.ok .icon{display:none}.stair-note-preview>summary{cursor:pointer;font-size:15px;font-weight:650}.stair-note{font-size:14px;line-height:1.5}.stair-note h1{margin:0 0 4px;font-size:20px}.stair-note-sub{color:var(--muted);margin:0 0 8px}.stair-tool .stair-note h3{margin:16px 0 6px;font-size:15px}.stair-note p{margin:6px 0}.stair-note ul,.stair-note ol{margin:6px 0;padding-left:20px}.stair-note li{margin:3px 0}.stair-note-scroll{overflow-x:auto}.stair-note-table{border-collapse:collapse;width:100%;font-size:13px}.stair-note-table th,.stair-note-table td{border-bottom:1px solid var(--border);text-align:left;vertical-align:top;padding:4px 8px 4px 0}.stair-note-table th{color:var(--muted);font-weight:600}.stair-tool-print{display:none}@media (width<=900px){.stair-tool{grid-template-columns:minmax(0,1fr);gap:16px;padding:12px 12px 24px}.stair-tool-form{max-height:none;padding:0;position:static;overflow:visible}.stair-tool-card{padding:14px 12px}.stair-tool-views{grid-template-columns:minmax(0,1fr)}.stair-tool-views .stair-drawing-svg{max-height:none}}@media (width<=420px){.stair-tool-kinds{grid-template-columns:repeat(2,minmax(0,1fr))}}@media print{body.printing-stair-tool>:not(.stair-tool-print){display:none!important}body.printing-stair-tool{background:#fff!important;height:auto!important}html:has(body.printing-stair-tool){background:#fff!important;height:auto!important}body.printing-stair-tool .stair-tool-print{color:#000;background:#fff;font-size:12px;display:block}.stair-tool-print h1{margin:0 0 10px;font-size:16px}.stair-tool-print .stair-drawing-views{grid-template-columns:1fr 1fr;gap:10px}.stair-tool-print figure{break-inside:avoid}.stair-tool-print .stair-drawing-svg{border:none;max-height:none}.stair-tool-print .stair-drawing-warnings li{color:#000;background:0 0;padding:2px 0}.stair-tool-print .stair-drawing-table{break-inside:avoid;margin-top:10px}.stair-tool-print .stair-drawing-table th,.stair-tool-print .stair-drawing-table td{border-color:#ccc}.stair-tool-print .stair-drawing-warnings cite{text-decoration:none}.stair-tool-print-note{break-before:page}.stair-tool-print .stair-note{font-size:11px;line-height:1.4}.stair-tool-print .stair-note h1{font-size:16px}.stair-tool-print .stair-note h2{break-after:avoid;margin:12px 0 4px;font-size:13px}.stair-tool-print .stair-note-table{font-size:10px}.stair-tool-print .stair-note-table th,.stair-tool-print .stair-note-table td{color:#000;border:1px solid #bbb;padding:2px 4px}.stair-tool-print .stair-note-table tr{break-inside:avoid}}