@import"https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;600&family=Roboto+Mono:wght@400;500;600&display=swap";:root{--color-primary: #1821A3;--color-primary-foreground: #FFFFFF;--color-background: #F2EEEB;--color-card: #FFFFFF;--color-card-foreground: #000000;--color-foreground: #000000;--color-secondary: #736A65;--color-muted: #BFB2AA;--color-muted-foreground: #736A65;--color-border: #BFB2AA;--color-accent: #BFB2AA;--color-ring: #1821A3;--color-input-bg: #FFFFFF;--color-input-border: #D1D5DB;--color-input-focus: #1821A3;--color-pass: #16A34A;--color-pass-bg: #F0FDF4;--color-pass-border: #BBF7D0;--color-controlling: #CA8A04;--color-controlling-bg: #FEFCE8;--color-controlling-border: #FEF08A;--color-fail: #DC2626;--color-fail-bg: #FEF2F2;--color-fail-border: #FECACA;--color-destructive: #D4183D;--color-destructive-foreground: #FFFFFF;--font-ui: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-math: "Roboto Mono", "SF Mono", "Monaco", "Consolas", monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--font-light: 300;--font-normal: 400;--font-medium: 500;--font-semibold: 600;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--radius-sm: .25rem;--radius: .375rem;--radius-md: .5rem;--radius-lg: .625rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px -1px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1);--sidebar-width: 350px;--container-max: 1400px}.status-pass{background-color:var(--color-pass-bg);border-color:var(--color-pass-border);color:var(--color-pass)}.status-controlling{background-color:var(--color-controlling-bg);border-color:var(--color-controlling-border);color:var(--color-controlling)}.status-fail{background-color:var(--color-fail-bg);border-color:var(--color-fail-border);color:var(--color-fail)}.value-engineering{font-family:var(--font-math)}.unit-sub{font-size:.75em;vertical-align:sub}.unit-super{font-size:.75em;vertical-align:super}.structural-table{width:100%;border-collapse:collapse;font-size:var(--text-sm)}.structural-table th{padding:12px 10px;text-align:right;background:#f9fafb;border-bottom:2px solid #e5e7eb;font-weight:600;color:var(--color-foreground);font-family:var(--font-ui)}.structural-table th:first-child{text-align:left}.structural-table td{padding:10px;text-align:right;border-bottom:1px solid #e5e7eb;font-family:var(--font-math)}.structural-table td:first-child{text-align:left;font-family:var(--font-ui)}.structural-table tbody tr{transition:background .15s ease}.structural-table tbody tr:hover{background:#1821a308}.structural-table tbody tr.row-pass{background:transparent}.structural-table tbody tr.row-controlling{background:var(--color-controlling-bg)}.structural-table tbody tr.row-fail{background:var(--color-fail-bg)}.structural-table tbody tr.row-controlling:hover{background:#fef9c3}.structural-table tbody tr.row-fail:hover{background:#fee2e2}.util-cell{font-weight:500}.util-cell.util-pass{color:var(--color-pass)}.util-cell.util-controlling{color:var(--color-controlling);font-weight:700}.util-cell.util-fail{color:var(--color-fail);font-weight:700}.table-status-badge{display:inline-block;padding:4px 10px;border-radius:4px;font-family:var(--font-ui);font-weight:600;font-size:11px;text-transform:uppercase}.table-status-badge.badge-pass{background:var(--color-pass-bg);color:var(--color-pass);border:1px solid var(--color-pass-border)}.table-status-badge.badge-fail{background:var(--color-fail-bg);color:var(--color-fail);border:1px solid var(--color-fail-border)}.table-status-badge.badge-na{background:#f5f5f5;color:#999;border:1px solid #ddd}.table-section-header{margin:24px 0 12px;padding-bottom:8px;font-size:var(--text-base);font-weight:600;color:var(--color-foreground);border-bottom:1px solid #e5e7eb}.table-section-header:first-of-type{margin-top:0}.table-summary{margin-top:16px;padding:14px 16px;background:var(--color-background);border:1px solid var(--color-border);border-radius:var(--radius);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:var(--text-sm)}.table-summary-label{color:var(--color-secondary)}.table-summary-value{font-family:var(--font-math);font-weight:600}.table-summary-status{font-weight:600}.table-summary-status.status-pass{color:var(--color-pass)}.table-summary-status.status-fail{color:var(--color-fail)}.controlling-section-summary{margin-bottom:20px;padding:16px 20px;background:var(--color-card);border:1px solid var(--color-border);border-left:4px solid var(--color-pass);border-radius:var(--radius)}.controlling-section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--color-border)}.controlling-section-title{font-family:var(--font-ui);font-size:var(--text-base);font-weight:600;color:var(--color-foreground)}.controlling-section-status{font-family:var(--font-ui);font-size:var(--text-sm);font-weight:600;padding:4px 12px;border-radius:4px}.controlling-section-status.status-pass{background:var(--color-pass-bg);color:var(--color-pass)}.controlling-section-status.status-fail{background:var(--color-fail-bg);color:var(--color-fail)}.controlling-section-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px}.controlling-section-item{display:flex;flex-direction:column;gap:4px}.controlling-section-list{display:flex;flex-direction:column;gap:8px}.controlling-section-list-item{display:flex;align-items:baseline;gap:8px;padding:4px 0}.controlling-section-label{font-family:var(--font-ui);font-size:var(--text-xs);color:var(--color-secondary);font-weight:500}.controlling-section-value{font-family:var(--font-math);font-size:var(--text-base);font-weight:600;color:var(--color-foreground)}.controlling-section-value.status-fail{color:var(--color-fail)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-ui);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--color-background);color:var(--color-foreground)}.app-header{display:flex;justify-content:space-between;align-items:center;padding:12px 24px;background:var(--color-primary);color:var(--color-primary-foreground);position:sticky;top:0;z-index:100;box-shadow:0 2px 8px #00000026}.header-left{display:flex;align-items:center;gap:20px}.header-logo{font-size:1.5rem;font-weight:300;letter-spacing:2px}.header-logo-opt{font-weight:600}.header-logo-img{height:32px;width:auto}.header-project-name{font-size:1rem;font-weight:300;opacity:.9;padding-left:20px;border-left:1px solid rgba(255,255,255,.3)}.header-right{display:flex;align-items:center;gap:16px}.btn-header{background:#ffffff26;color:var(--color-primary-foreground);border:1px solid rgba(255,255,255,.3);padding:8px 16px;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}.btn-header:hover{background:#ffffff40;border-color:#ffffff80}.optimization-layout{min-height:100vh;display:flex;flex-direction:column}.optimization-container{display:grid;grid-template-columns:400px 1fr;flex:1;overflow:hidden}.input-column{background:var(--color-background);border-right:1px solid var(--color-border);overflow-y:auto;height:calc(100vh - 56px);padding:20px}.results-column{background:var(--color-background);overflow-y:auto;height:calc(100vh - 56px);padding:24px}.results-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;min-height:400px;text-align:center;color:var(--color-secondary)}.results-placeholder .placeholder-icon{font-size:4rem;margin-bottom:20px;opacity:.5}.results-placeholder h3{font-size:1.25rem;font-weight:600;margin-bottom:8px;color:var(--color-foreground)}.results-placeholder p{font-size:.875rem;max-width:300px}.design-preview-panel{background:var(--color-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);margin-bottom:24px;overflow:hidden}.status-message{padding:14px 20px;margin-bottom:20px;border-radius:var(--radius-lg);font-weight:500;font-size:14px}.status-message.processing{background:#e3f2fd;border:1px solid #90caf9;color:#1565c0}.status-message.complete{background:var(--color-pass-bg);border:1px solid var(--color-pass-border);color:var(--color-pass)}.status-message.error{background:var(--color-fail-bg);border:1px solid var(--color-fail-border);color:var(--color-fail)}.warning-panel{border-radius:var(--radius-lg);padding:16px 20px;margin-bottom:20px}.warning-panel.warning{background:linear-gradient(135deg,#fff3cd,#ffe9a6);border:2px solid #ffc107}.warning-panel.info{background:linear-gradient(135deg,#e8f4fd,#d1ecf1);border:2px solid #17a2b8}.warning-title{margin:0 0 12px;font-size:16px;font-weight:600}.warning-panel.warning .warning-title{color:#856404}.warning-panel.info .warning-title{color:#0c5460}.warning-list{margin:0;padding:0;list-style:none;font-size:13px}.warning-panel.warning .warning-list{color:#856404}.warning-panel.info .warning-list{color:#0c5460}.warning-list li{margin-bottom:4px}.warning-list li:last-child{margin-bottom:0}.app{max-width:1400px;margin:0 auto;padding:20px}.header{background:var(--color-card);padding:30px;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);margin-bottom:30px}.header h1{color:var(--color-foreground);margin-bottom:10px}.header p{color:var(--color-secondary)}.section{background:var(--color-card);padding:25px;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);margin-bottom:20px}.section h2{color:var(--color-foreground);margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--color-primary)}.form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.section:has(.range-input) .form-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.form-group{display:flex;flex-direction:column}.form-group label{font-weight:600;margin-bottom:5px;color:var(--color-secondary);font-size:14px}.form-group input,.form-group select{padding:10px;border:1px solid var(--color-input-border);border-radius:4px;font-size:14px}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #1821a326}input[type=number]{text-align:left}.range-input{display:grid;grid-template-columns:90px auto 90px;gap:10px;align-items:center}.range-input input{padding:8px;width:90px;text-align:left}.range-input span{color:var(--color-muted);font-weight:700}.button-group{display:flex;gap:15px;margin-top:30px}.btn{padding:12px 30px;border:none;border-radius:4px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s}.btn-primary{background:var(--color-primary);color:var(--color-primary-foreground)}.btn-secondary{background:var(--color-muted);color:var(--color-foreground)}.status{padding:15px;border-radius:4px;margin-top:20px;font-weight:500}.status.processing{background:#fff3cd;color:#856404;border:1px solid #ffeaa7}.status.complete{background:#d4edda;color:#155724;border:1px solid #c3e6cb}.status.error{background:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.results-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-top:15px}.result-card{background:var(--color-background);padding:12px;border-radius:var(--radius);border-left:3px solid var(--color-primary)}.result-card h3{font-size:12px;color:var(--color-secondary);margin-bottom:4px}.result-card .value{font-size:18px;font-weight:700;font-family:var(--font-math);color:var(--color-foreground)}.result-card .unit{font-size:11px;color:var(--color-muted);margin-left:4px}.download-section{margin-top:30px}.download-button{display:inline-block;padding:10px 20px;background:var(--color-secondary);color:#fff;text-decoration:none;border-radius:var(--radius);margin-right:10px;margin-top:10px;transition:background .3s}.download-button:hover{background:var(--color-primary)}.loading-spinner{display:inline-block;width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin .8s linear infinite;margin-left:10px;vertical-align:middle}@keyframes spin{to{transform:rotate(360deg)}}.optimization-layout .loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;padding:60px;color:var(--color-secondary)}.optimization-layout .loading-container .loading-spinner{width:40px;height:40px;border:3px solid var(--color-border);border-top-color:var(--color-primary);margin:0 0 16px}.optimization-layout .loading-container p{font-size:14px}.results-top-section{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}.results-summary-panel,.model-viewer-panel{display:flex;flex-direction:column}.model-viewer-panel .viewer-container{height:500px}@media(max-width:1024px){.results-top-section{grid-template-columns:1fr}.model-viewer-panel .viewer-container{height:600px}}.viewer-container{position:relative;width:100%;height:600px;background:var(--color-background);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--color-border)}.viewer-loading,.viewer-error,.viewer-placeholder{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#1a1a1a;color:#fff;z-index:10}.viewer-loading .spinner{width:50px;height:50px;border:4px solid rgba(255,255,255,.1);border-radius:50%;border-top-color:var(--color-primary);animation:spin 1s linear infinite;margin-bottom:20px}.viewer-loading p{font-size:16px;color:#aaa}.viewer-error{background:#2c1a1a}.viewer-error p{color:#ff6b6b;margin:10px 0;font-size:16px}.viewer-error .error-details{font-size:14px;color:#999}.viewer-placeholder p{color:#999;font-size:16px}.viewer-controls-hint{position:absolute;bottom:15px;left:50%;transform:translate(-50%);background:#000000b3;color:#fff;padding:10px 20px;border-radius:20px;font-size:12px;pointer-events:none;z-index:5}.viewer-controls-hint p{margin:0;opacity:.8}.viewer-view-controls{position:absolute;top:15px;right:15px;display:flex;gap:8px;z-index:10}.view-btn{background:#fffffff2;border:1px solid var(--color-input-border);color:var(--color-foreground);padding:8px 14px;border-radius:var(--radius);font-size:13px;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:var(--shadow-sm)}.view-btn:hover{background:var(--color-primary);color:var(--color-primary-foreground);border-color:#12187d;transform:translateY(-1px);box-shadow:0 3px 6px #00000026}.view-btn:active{transform:translateY(0);box-shadow:0 1px 2px #0000001a}@media(max-width:768px){.viewer-container{height:400px}.viewer-controls-hint{font-size:10px;padding:8px 15px}.viewer-view-controls{top:10px;right:10px;gap:5px}.view-btn{padding:6px 10px;font-size:11px}}.login-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--color-background);padding:20px}.login-logo{margin-bottom:40px;text-align:center}.login-logo img{height:80px}.login-panel{background:var(--color-card);padding:40px;border-radius:12px;box-shadow:var(--shadow-md);max-width:450px;width:100%}.login-panel h1{font-size:24px;color:var(--color-foreground);margin-bottom:30px;text-align:center}.login-form{display:flex;flex-direction:column;gap:20px}.login-form h2{font-size:20px;color:var(--color-foreground);margin-bottom:10px;text-align:center}.error-message{background:var(--color-fail-bg);border:1px solid var(--color-fail-border);color:var(--color-fail);padding:12px;border-radius:var(--radius);font-size:14px}.btn-primary{background:var(--color-primary);color:var(--color-primary-foreground);border:none;padding:12px 24px;border-radius:4px;font-size:16px;font-weight:600;cursor:pointer;transition:background .3s}.btn-primary:hover{background:#12187d}.btn-primary:disabled{background:#999;cursor:not-allowed}.btn-secondary{background:var(--color-muted);color:var(--color-foreground);border:none;padding:10px 20px;border-radius:var(--radius);font-size:14px;cursor:pointer;transition:background .3s}.btn-secondary:hover{background:var(--color-secondary);color:#fff}.btn-danger{background:var(--color-destructive);color:var(--color-destructive-foreground);border:none;padding:8px 16px;border-radius:var(--radius);font-size:14px;cursor:pointer;transition:background .3s}.btn-danger:hover{background:#b01538}.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;margin-top:20px}.project-card{background:var(--color-card);padding:20px;border-radius:var(--radius-lg);border:1px solid var(--color-border);transition:transform .2s,box-shadow .2s}.project-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.project-card h3{color:var(--color-foreground);margin-bottom:10px}.project-meta{color:var(--color-secondary);font-size:14px;margin-bottom:15px}.project-actions{display:flex;gap:10px}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;color:var(--color-secondary)}.status{padding:15px 20px;margin:20px 0;border-radius:4px;font-weight:500}.status.processing{background:#e3f2fd;border:1px solid #90caf9;color:#1565c0}.status.complete{background:#e8f5e9;border:1px solid #81c784;color:#2e7d32}.status.error{background:#ffebee;border:1px solid #ef9a9a;color:#c62828}.pricing-card{max-width:500px;margin:40px auto;background:#fff;padding:40px;border-radius:12px;box-shadow:0 4px 12px #00000026;text-align:center}.pricing-card h2{color:var(--color-primary);margin-bottom:20px;font-size:28px}.pricing-card .price{margin:30px 0}.pricing-card .amount{font-size:48px;font-weight:700;color:var(--color-primary)}.pricing-card .period{font-size:18px;color:var(--color-secondary);margin-left:8px}.pricing-card .trial-notice{background:#e8f5e9;border:1px solid #81c784;color:#2e7d32;padding:12px 20px;border-radius:4px;margin:20px 0;text-align:center}.pricing-card .trial-notice p{margin:0;font-weight:600;font-size:16px}.pricing-card .features{list-style:none;padding:0;margin:30px 0;text-align:left}.pricing-card .features li{padding:12px 0;border-bottom:1px solid var(--color-border);color:var(--color-foreground)}.pricing-card .features li:before{content:"✓ ";color:var(--color-primary);font-weight:700;margin-right:8px}.pricing-card .terms{margin-top:20px;font-size:12px;color:var(--color-muted)}.input-column .button-group{margin-top:20px;padding-top:20px;border-top:1px solid var(--color-border)}.input-column .button-group .btn-primary{width:100%;padding:14px 24px;font-size:16px}@media(max-width:1024px){.optimization-container{grid-template-columns:350px 1fr}}@media(max-width:768px){.app-header{padding:10px 16px;flex-wrap:wrap;gap:10px}.header-logo{font-size:1.25rem}.header-logo-img{height:24px}.header-project-name{display:none}.header-right{gap:10px}.btn-header{padding:6px 12px;font-size:13px}.optimization-container{grid-template-columns:1fr;grid-template-rows:auto 1fr}.input-column{height:auto;max-height:none;border-right:none;border-bottom:1px solid var(--color-border);overflow-y:visible}.results-column{height:auto;min-height:400px;overflow-y:visible}.app{padding:15px}.header{padding:20px}.header h1{font-size:24px}.section{padding:20px}.section h2{font-size:18px}.form-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:15px}.section:has(.range-input) .form-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:15px}.button-group{flex-wrap:wrap;gap:10px}.btn{padding:10px 20px;font-size:15px}.projects-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:15px}.results-grid{grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:10px}.result-card .value{font-size:16px}}@media(max-width:480px){.app{padding:10px}.header{padding:15px}.header h1{font-size:20px}.header p{font-size:14px}.section{padding:15px}.section h2{font-size:16px;margin-bottom:15px}.form-grid,.section:has(.range-input) .form-grid{grid-template-columns:1fr;gap:12px}.range-input{grid-template-columns:1fr;gap:8px}.range-input span{text-align:center}.range-input input{width:100%}.button-group{flex-direction:column;gap:10px}.btn{width:100%;padding:12px 20px}.projects-grid{grid-template-columns:1fr}.project-actions{flex-direction:column}.project-actions .btn,.project-actions .btn-secondary,.project-actions .btn-danger{width:100%}.results-grid{grid-template-columns:repeat(2,1fr);gap:8px}.result-card{padding:10px}.result-card h3{font-size:11px}.result-card .value{font-size:15px}.login-panel{padding:25px}.login-panel h1{font-size:20px}.pricing-card{padding:25px}.pricing-card h2{font-size:22px}.pricing-card .amount{font-size:36px}.viewer-container{height:300px}.viewer-view-controls{flex-wrap:wrap;gap:4px}.view-btn{padding:5px 8px;font-size:10px}}@media(max-width:360px){.app{padding:8px}.section,.header{padding:12px}.header h1{font-size:18px}.section h2{font-size:15px}.form-group label{font-size:13px}.form-group input,.form-group select{font-size:13px;padding:8px}.btn{font-size:14px;padding:10px 16px}.viewer-container{height:250px}.result-card .value{font-size:14px}.result-card h3{font-size:10px}}.collapsible-section{background:var(--color-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);margin-bottom:16px;overflow:hidden}.input-column .collapsible-section{box-shadow:none;border:1px solid var(--color-border);margin-bottom:12px}.collapsible-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;margin:0;cursor:pointer;border-bottom:2px solid var(--color-primary);font-size:16px;font-weight:600;color:var(--color-foreground);transition:background .2s;user-select:none}.collapsible-header:hover{background:#1821a30d}.collapsible-content{padding:16px}.input-column .form-row{padding:6px 0}.input-column .form-row label{font-size:13px}.input-column .form-row input,.input-column .form-row select{font-size:13px;padding:5px 8px}.form-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid #f0f0f0}.form-row:last-child{border-bottom:none}.form-row label{flex:1;font-size:14px;color:var(--color-secondary);font-weight:500}.form-row input,.form-row select{width:120px;padding:6px 10px;border:1px solid var(--color-border);border-radius:4px;font-size:14px;text-align:left}.form-row input:focus,.form-row select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 2px #1821a326}.unit-input-group{display:flex;align-items:center;gap:6px}.unit-input-group input{width:100px;flex-shrink:0}.unit-input-group .unit-label{color:var(--color-secondary);font-size:12px;white-space:nowrap;flex-shrink:0}.form-row.range-row{flex-wrap:wrap}.form-row.range-row .range-inputs{display:flex;align-items:center;gap:8px}.form-row.range-row input{width:80px;text-align:left}.form-row.range-row .range-separator{color:var(--color-muted);font-size:12px}.material-subheading{margin:16px 0 10px;padding-bottom:4px;color:var(--color-secondary);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid #e0e0e0}.material-subheading:first-of-type{margin-top:0}.subsection-label{margin:12px 0 6px;font-size:12px;font-weight:600;color:var(--color-secondary)}.unit-sub{font-size:.8em;vertical-align:baseline}@media(max-width:480px){.form-row{flex-direction:column;align-items:flex-start;gap:6px}.form-row input,.form-row select{width:100%;text-align:left}.unit-input-group{width:100%}.unit-input-group input{flex:1;min-width:0;width:auto}.form-row.range-row .range-inputs{width:100%;justify-content:space-between}.form-row.range-row input{flex:1;min-width:0}}.key-metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:20px}@media(max-width:1024px){.key-metrics-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:480px){.key-metrics-grid{grid-template-columns:repeat(2,1fr)}}.key-metric-card{background:var(--color-card);padding:14px 12px;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);display:flex;flex-direction:column;align-items:center;text-align:center}.key-metric-label{font-size:var(--text-xs);color:var(--color-secondary);font-weight:500;margin-bottom:6px}.key-metric-value{font-family:var(--font-math);font-size:1.5rem;font-weight:600;color:var(--color-foreground);line-height:1.2}.key-metric-unit{font-size:var(--text-xs);color:var(--color-secondary);margin-left:3px;font-family:var(--font-ui)}.summary-cards-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:24px}@media(max-width:768px){.summary-cards-grid{grid-template-columns:1fr}}.summary-card{background:var(--color-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden}.summary-card-header{background:var(--color-primary);color:var(--color-primary-foreground);padding:12px 16px;font-size:var(--text-sm);font-weight:600;text-transform:uppercase;letter-spacing:.5px}.summary-card-body{padding:16px}.summary-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid var(--color-border);font-size:13px}.summary-row:last-child{border-bottom:none}.summary-row-label{font-family:var(--font-ui);color:var(--color-foreground)}.summary-row-value{font-family:var(--font-math);font-weight:600;color:var(--color-primary)}.design-check-accordion{background:var(--color-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden}.design-check-row{border-bottom:1px solid #e5e7eb}.design-check-row:last-child{border-bottom:none}.design-check-header{display:flex;align-items:center;width:100%;padding:16px 20px;background:transparent;border:none;cursor:pointer;font-family:var(--font-ui);font-size:var(--text-base);text-align:left;transition:background .2s}.design-check-header:hover{background:#1821a308}.design-check-chevron{flex-shrink:0;margin-right:12px;color:var(--color-secondary);transition:transform .2s ease}.design-check-chevron.expanded{transform:rotate(180deg)}.design-check-name{font-weight:500;color:var(--color-foreground)}.design-check-spacer{flex:1}.design-check-badge{display:inline-flex;align-items:center;gap:8px;padding:4px 12px;border-radius:6px;font-size:var(--text-xs);font-weight:600;text-transform:uppercase}.design-check-badge.status-pass{background:var(--color-pass-bg);color:var(--color-pass);border:1px solid var(--color-pass-border)}.design-check-badge.status-fail{background:var(--color-fail-bg);color:var(--color-fail);border:1px solid var(--color-fail-border)}.design-check-util{font-family:var(--font-math);font-size:var(--text-sm);font-weight:400}.design-check-content{padding:16px 20px;border-top:1px solid #e5e7eb;background:#fafafa}.section-drawing-panel{background:var(--color-card);padding:20px;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);margin-bottom:24px}.section-drawing-panel h3{font-size:var(--text-base);font-weight:600;color:var(--color-foreground);margin-bottom:16px}.section-drawing-panel h2{color:var(--color-foreground);margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--color-primary)}.stress-section-heading{margin-bottom:12px;color:var(--color-foreground);font-size:var(--text-sm);font-weight:600}.serviceability-rc-message{padding:20px;text-align:center;color:var(--color-secondary);background:var(--color-background);border-radius:var(--radius)}.serviceability-rc-message p{margin:0;font-size:var(--text-sm)}