:root{--navy: #12355b;--navy-dark: #0b2442;--accent: #e8590c;--accent-soft: #fff1e8;--laser: #d92d20;--ink: #111827;--muted: #5b6472;--line: #d7dce3;--bg: #eef1f5;--card: #ffffff;--ok: #157347;--ok-soft: #e7f5ee;--warn: #9a5b00;--warn-soft: #fff6e0;--danger: #b42318;--radius: 14px;color-scheme:light;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:var(--ink);-webkit-text-size-adjust:100%}*{box-sizing:border-box}html,body{margin:0;background:var(--bg)}body{min-height:100dvh;-webkit-tap-highlight-color:transparent;overscroll-behavior-y:none}button,input,textarea{font:inherit;color:inherit}a{color:var(--navy)}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:calc(env(safe-area-inset-top) + 10px) 16px 10px;background:var(--navy);color:#fff}.brand{display:flex;flex-direction:column;color:#fff;text-decoration:none;line-height:1.1}.brand-co{font-size:12px;opacity:.8;letter-spacing:.02em}.brand-app{font-size:20px;font-weight:700}.lang-toggle{display:flex;border:1.5px solid rgba(255,255,255,.6);border-radius:999px;overflow:hidden}.lang-toggle button{border:0;background:transparent;color:#fff;padding:8px 14px;font-weight:700;font-size:14px;min-width:48px;min-height:40px}.lang-toggle button.on{background:#fff;color:var(--navy)}.main{max-width:560px;margin:0 auto}.page{padding:16px 16px calc(24px + env(safe-area-inset-bottom))}.stack{display:flex;flex-direction:column;gap:10px}.stack.spaced{margin-top:16px}.row{display:flex;align-items:center}.row.gap{gap:10px;margin-top:10px}.grow{flex:1}.muted{color:var(--muted)}.small{font-size:14px;font-weight:400}.hint{color:var(--muted);font-size:14px;line-height:1.45;margin:10px 0 0}.footer-hint{margin-top:24px;text-align:center}.section-title{font-size:15px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:24px 0 10px}.back-link{display:inline-flex;align-items:center;min-height:40px;font-weight:600;text-decoration:none;margin-bottom:4px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:14px}.card-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}.card-title{font-size:18px;margin:0 0 10px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.card-head .card-title{margin:0}.step-title{font-size:24px;line-height:1.2;margin:8px 0 6px;display:flex;align-items:center;gap:10px}.sub-title{font-size:16px;margin:18px 0 8px}.tip{margin:0 0 10px;color:var(--muted);font-size:16px;line-height:1.4}.letter{display:inline-grid;place-items:center;width:36px;height:36px;flex:none;border-radius:50%;background:var(--accent);color:#fff;font-size:20px;font-weight:800}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:52px;padding:12px 18px;border-radius:12px;border:2px solid transparent;font-size:17px;font-weight:700;text-decoration:none;cursor:pointer;-webkit-user-select:none;user-select:none;text-align:center}.btn:disabled{opacity:.45;cursor:default}.btn-primary{background:var(--navy);color:#fff}.btn-primary:active:not(:disabled){background:var(--navy-dark)}.btn-secondary{background:#fff;color:var(--navy);border-color:var(--navy)}.btn-ghost{background:transparent;color:var(--navy)}.btn-danger-ghost{background:transparent;color:var(--danger)}.btn-xl{min-height:60px;font-size:19px;width:100%}.link-btn{background:none;border:0;color:var(--navy);text-decoration:underline;font-weight:600;padding:6px 4px;min-height:36px}.field{display:flex;flex-direction:column;gap:6px;margin-top:12px;font-weight:600}.field input,.field textarea{font-size:17px;font-weight:400;padding:12px;border:1.5px solid var(--line);border-radius:10px;background:#fff;min-height:50px;width:100%}.field input:focus,.field textarea:focus{outline:3px solid rgba(18,53,91,.25);border-color:var(--navy)}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.job-card{display:flex;align-items:center;justify-content:space-between;gap:12px;text-decoration:none;color:inherit;margin:0}.job-card-main{min-width:0}.job-title{font-weight:700;font-size:18px;overflow-wrap:anywhere}.badge{flex:none;font-size:13px;font-weight:700;padding:6px 10px;border-radius:999px;background:var(--bg);color:var(--muted);white-space:nowrap}.badge.ok{background:var(--ok-soft);color:var(--ok)}.badge.warn{background:var(--warn-soft);color:var(--warn)}.facing-pill{font-size:13px;font-weight:700;padding:3px 8px;border-radius:999px;background:var(--accent-soft);color:var(--accent)}.stepper{display:grid;grid-template-columns:64px 1fr 64px;gap:10px;align-items:center}.stepper-value{text-align:center;font-size:44px;font-weight:800;font-variant-numeric:tabular-nums}.sketch-thumb{width:100%;border:1px solid var(--line);border-radius:10px;display:block}.wizard{padding-bottom:0}.wizard-head{margin-bottom:6px}.wizard-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.small-link{font-size:14px;margin:0;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:block;line-height:40px}.wizard-pos{display:flex;align-items:center;gap:8px;flex:none}.progress{height:6px;border-radius:3px;background:var(--line);margin-top:2px;overflow:hidden}.progress>div{height:100%;background:var(--accent);transition:width .2s}.navbar{position:sticky;bottom:0;margin:16px -16px 0;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:#eef1f5f5;border-top:1px solid var(--line);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.navbar-row{display:flex;gap:10px}.navbar-extra{text-align:center;margin-bottom:4px}.diagram{display:block;width:100%;height:auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:10px}.diagram.compact{max-height:128px}.dg-beam{fill:#c9ced6;stroke:#6b7280;stroke-width:1}.dg-post{fill:#e5e7eb;stroke:#6b7280;stroke-width:1}.dg-floor{stroke:#374151;stroke-width:3}.dg-laser{stroke:var(--laser);stroke-width:2.5;stroke-dasharray:9 6}.dg-laser.on{stroke-width:5}.dg-laser-dot{fill:var(--laser)}.dg-laser-text{fill:var(--laser);font-size:12px;font-weight:700}.dg-dim line{stroke:#6b7280;stroke-width:1.4}.dg-dim.on line{stroke:var(--accent);stroke-width:3.5}.dg-label{fill:#374151;font-size:14px;font-weight:700}.dg-label.on{fill:var(--accent);font-size:17px}.inch-input{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px}.inch-value{display:flex;align-items:baseline;justify-content:center;gap:8px;font-size:44px;font-weight:800;font-variant-numeric:tabular-nums;min-height:60px;padding-bottom:6px;border-bottom:2px solid var(--accent);margin-bottom:10px}.inch-value.empty{color:var(--line)}.inch-frac{color:var(--accent)}.inch-mark{font-size:32px;margin-left:-4px}.inch-cols{display:grid;grid-template-columns:1fr 1fr;gap:12px}.inch-col-label{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:6px}.keypad{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.key{min-height:52px;border-radius:10px;border:1.5px solid var(--line);background:#f8fafc;font-size:24px;font-weight:700;cursor:pointer;touch-action:manipulation}.key:active:not(:disabled){background:var(--line)}.key:disabled{opacity:.4}.key-fn{font-size:18px;color:var(--muted)}.fracs{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}.frac{min-height:39px;border-radius:8px;border:1.5px solid var(--line);background:#fff;font-size:15px;font-weight:700;padding:0;cursor:pointer;touch-action:manipulation}.frac.odd{color:var(--muted);font-weight:600;font-size:13px}.frac.on{background:var(--accent);border-color:var(--accent);color:#fff}.photo-box{background:#fff;border:1px dashed var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:12px;aspect-ratio:4 / 3;display:grid;place-items:center}.photo-box img{width:100%;height:100%;object-fit:cover}.photo-empty{font-size:48px;opacity:.5}.review-photo{width:100%;max-height:220px;object-fit:cover;border-radius:10px;margin-bottom:10px}.compass{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;max-width:300px;margin:0 auto 8px}.compass-btn{min-height:56px;border-radius:12px;border:1.5px solid var(--line);background:#fff;font-size:18px;font-weight:800;cursor:pointer}.compass-btn.on{background:var(--accent);border-color:var(--accent);color:#fff}.compass-center{display:grid;place-items:center;font-size:26px;color:var(--muted)}.tbl{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;font-size:15px;margin-bottom:10px}.tbl td{padding:10px;border-bottom:1px solid var(--line);vertical-align:middle}.tbl tr:last-child td{border-bottom:0}.tbl-letter{width:34px;font-weight:800;color:var(--accent);text-align:center}.tbl-val{text-align:right;font-weight:800;white-space:nowrap;font-variant-numeric:tabular-nums}.tbl-val.missing{color:var(--danger);font-weight:600}.tappable{cursor:pointer}.tappable:active{background:var(--bg)}.chev{margin-left:8px;color:var(--muted)}.calc-label{font-weight:600}.calc-math{font-size:13px;color:var(--muted);margin-top:2px;font-variant-numeric:tabular-nums}.calc-note{font-size:12px;font-weight:600;color:var(--muted);white-space:normal}.tbl tr.hl td{background:var(--accent-soft)}.tbl tr.hl .tbl-val,.tbl tr.hl .calc-label{color:var(--accent)}.notes{white-space:pre-wrap;background:var(--bg);border-radius:10px;padding:10px 12px;margin:0 0 6px}.warn-box{background:var(--warn-soft);color:var(--warn);border-radius:10px;padding:12px;font-weight:600}.pdf-file{display:flex;align-items:center;gap:12px;margin-bottom:14px}.pdf-icon{width:48px;height:58px;flex:none;border-radius:6px;background:var(--laser);color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;background:var(--bg);overflow-y:auto}.sketch-sheet{max-width:720px;margin:0 auto;padding:calc(env(safe-area-inset-top) + 12px) 16px calc(16px + env(safe-area-inset-bottom))}.sketch-top{display:flex;align-items:center;justify-content:space-between;font-size:18px}.sketch-colors{display:flex;gap:8px}.swatch{width:40px;height:40px;border-radius:50%;border:3px solid #fff;box-shadow:0 0 0 1.5px var(--line);cursor:pointer}.swatch.on{box-shadow:0 0 0 3px var(--accent)}.sketch-canvas{display:block;width:100%;aspect-ratio:4 / 3;margin-top:12px;touch-action:none;border:1.5px solid var(--line);border-radius:12px;background-color:#fff;background-image:radial-gradient(circle,#cfd5de 1px,transparent 1.2px);background-size:24px 24px}