:root{--color-bg-base: #fffffff7;--color-bg-alt: #f1f2f4f7;--color-bg-card: #fffffff7;--color-border: #dee2e6f8;--color-text: #1a1a1a;--color-text-light: #495057;--color-text-muted: #6c757d;--color-scrollbar-thumb: #7b996f;--color-scrollbar-thumb-hover: #5d7f52;--color-scrollbar-track: transparent;--color-text-primary: #1e293b;--color-text-secondary: #64748b;--color-primary: #5d7f52;--color-primary-rgb: 93, 127, 82;--color-primary-light: #7b996f;--color-primary-lighter: #96ad8c;--color-primary-dark: #4a6741;--color-success: #6b8c5f;--color-warning: #c4a678;--color-error: #b87a5a;--color-accent-sage: #8a9a7e;--color-accent-moss: #7a8c6a;--color-accent-bark: #8a7a68;--color-accent-pine: #3e5241;--color-accent-olive: #6b705c;--color-accent-clay: #b07d62;--color-accent-forest: #2d4c3b;--color-premium: #fbbf24;--color-premium-dark: #f59e0b;--color-info: #3b82f6;--color-info-light: #60a5fa;--color-gray: #94a3b8;--color-gray-light: #64748b;--color-gray-dark: #1e293b;--color-neutral-100: #f8fafc;--color-neutral-200: #e2e8f0;--color-neutral-300: rgba(240, 240, 240, .8);--color-neutral-hover: #e3e7e3;--color-warning-orange: #ff9800;--color-danger: #ef4444;--color-danger-dark: #cc0000;--color-danger-darker: #990000;--color-danger-light: #dc2626;--color-danger-lighter: #f87171;--color-border-subtle: rgba(0, 0, 0, .1);--color-border-subtle-hover: rgba(0, 0, 0, .15);--color-success-bg: #d1fae5;--color-success-text: #065f46;--color-success-border: #6ee7b7;--color-warning-bg: #fff7ed;--color-warning-border: #fed7aa;--color-warning-text: #9a3412;--color-error-bg: #fee2e2;--color-error-text: #991b1b;--color-error-border: #fca5a5;--color-info-bg: #dbeafe;--color-info-text: #1e40af;--color-info-border: #93c5fd;--color-admin: #8b5cf6;--color-admin-rgb: 139, 92, 246;--color-admin-alt: #6366f1;--color-toggle-bg: #ccc;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 2px 4px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 16px rgba(0, 0, 0, .12);--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--size-2: 2px;--size-4: 4px;--size-6: 6px;--size-8: 8px;--size-12: 12px;--size-16: 16px;--size-20: 20px;--size-24: 24px;--size-28: 28px;--size-32: 32px;--size-36: 36px;--size-40: 40px;--border-width: 1px;--border-width-md: 2px;--border-width-lg: 3px;--border-radius-xs: 4px;--border-radius-sm: 8px;--border-radius-md: 12px}.mi-18{font-size:18px!important}.mi-20{font-size:20px!important}.mi-24{font-size:24px!important}.mi-30{font-size:30px!important}.mi-36{font-size:36px!important}.mi-48{font-size:48px!important}.text-mi-xs{font-size:18px!important}.text-mi-sm{font-size:20px!important}.text-mi-base{font-size:24px!important}.text-mi-lg{font-size:30px!important}.text-mi-xl{font-size:36px!important}.text-mi-2xl{font-size:48px!important}:root[data-theme=dark]{--color-bg-base: #141414;--color-bg-alt: #1c1c1c;--color-bg-card: #242424;--color-border: #2d2d2d;--color-text: #f9fafb;--color-text-light: #d1d5db;--color-text-muted: #9ca3af;--color-scrollbar-thumb: rgba(122, 140, 106, .25);--color-scrollbar-thumb-hover: rgba(122, 140, 106, .5);--color-primary: #7a9670;--color-primary-light: #96ad8c;--color-primary-lighter: #b4c9ab;--color-primary-dark: #5d7f52;--color-success: #6b8c5f;--color-warning: #c4a678;--color-error: #ef4444;--color-accent-sage: #8a9a7e;--color-accent-moss: #7a8c6a;--color-accent-bark: #8a7a68;--color-accent-pine: #4e6351;--color-accent-olive: #7c8269;--color-accent-clay: #c18e74;--color-accent-forest: #3d5c4b;--color-premium: #fbbf24;--color-premium-dark: #f59e0b;--color-info: #60a5fa;--color-info-light: #93c5fd;--color-gray: #9ca3af;--color-gray-light: rgba(255, 255, 255, .6);--color-gray-dark: #0a0a0a;--color-neutral-100: #1a1a1a;--color-neutral-200: #0a0a0a;--color-neutral-300: rgba(30, 30, 30, .8);--color-neutral-hover: rgba(255, 255, 255, .1);--color-warning-orange: #ff9800;--color-danger: #ef4444;--color-danger-dark: #dc2626;--color-danger-darker: #b91c1c;--color-danger-light: #dc2626;--color-danger-lighter: #f87171;--color-text-primary: rgba(255, 255, 255, .9);--color-text-secondary: rgba(255, 255, 255, .6);--color-border-subtle: rgba(255, 255, 255, .1);--color-border-subtle-hover: rgba(255, 255, 255, .15);--color-success-bg: rgba(6, 95, 70, .2);--color-success-text: #6ee7b7;--color-success-border: rgba(110, 231, 183, .3);--color-warning-bg: rgba(154, 52, 18, .2);--color-warning-text: #fed7aa;--color-warning-border: rgba(253, 215, 170, .3);--color-error-bg: rgba(153, 27, 27, .2);--color-error-text: #fca5a5;--color-error-border: rgba(252, 165, 165, .3);--color-info-bg: rgba(30, 64, 175, .2);--color-info-text: #93c5fd;--color-info-border: rgba(147, 197, 253, .3);--color-admin: #8b5cf6;--color-admin-alt: #6366f1;--color-toggle-bg: rgba(255, 255, 255, .2);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 2px 4px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 16px rgba(0, 0, 0, .5)}.epx-card-section{background:var(--color-bg-card);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:var(--radius-lg);padding:1.5rem;border:1px solid var(--color-border);box-shadow:var(--shadow-sm);transition:all .3s ease;animation:fadeIn .5s ease-out;overflow:visible}.epx-card-section:hover{box-shadow:var(--shadow-md)}[data-theme=dark] .epx-card-section{background:var(--color-bg-card);border-color:var(--color-border)}.epx-card-section-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin:0 0 .74rem;flex-wrap:wrap}.epx-card-section-title{display:flex;align-items:center;gap:.5rem;margin:0;font-size:1.25rem;font-weight:600;color:var(--color-text-primary)}.epx-card-section-icon{font-size:1.5rem;color:var(--color-primary)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media(max-width:768px){.epx-card-section{padding:1.25rem 1rem;border-radius:var(--radius-md)}}[data-theme=dark] svg text{fill:var(--color-text, #f9fafb)!important}[data-theme=dark] svg line,[data-theme=dark] svg path,[data-theme=dark] svg polyline{stroke:var(--color-text, #d1d5db)!important}.epx-container *{box-sizing:border-box}*::-webkit-scrollbar{width:6px;height:4px}*::-webkit-scrollbar-track{background:var(--color-scrollbar-track)}*::-webkit-scrollbar-thumb{background:var(--color-scrollbar-thumb);border-radius:4px;transition:background .2s ease}*::-webkit-scrollbar-thumb:hover{background:var(--color-scrollbar-thumb-hover)}*{scrollbar-width:thin;scrollbar-color:var(--color-scrollbar-thumb) var(--color-scrollbar-track)}html{overscroll-behavior:none;height:100%}body{margin:0;padding:0;background:var(--color-bg-base);color:var(--color-text);font-family:Circular-Std-Book,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.5;overflow:hidden;overscroll-behavior:none;font-size:16px;height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app-layout{display:flex;flex-direction:row;height:100vh;overflow:hidden}#app{flex:1;overflow-y:auto;overflow-x:hidden;box-sizing:border-box;overscroll-behavior-y:contain;-webkit-overflow-scrolling:touch;padding-bottom:env(safe-area-inset-bottom,var(--android-nav-bar-height, 0px))}@media(max-width:768px){#app{padding-top:calc(var(--admob-overlay-height, env(safe-area-inset-top, var(--android-status-bar-height, 0px))) + 8px)}}#app:after{content:"";position:fixed;top:0;left:0;right:0;height:var(--admob-overlay-height, env(safe-area-inset-top, var(--android-status-bar-height, 0px)));background:linear-gradient(to bottom,#f8f9fabf,#f8f9fa8c);backdrop-filter:blur(33px);-webkit-backdrop-filter:blur(33px);box-shadow:0 8px 16px -8px #f8f9fa80;z-index:1000;pointer-events:none;transition:height .5s ease}#app:before{content:"";position:sticky;top:0;left:0;right:0;height:0;display:block;box-shadow:0 0 #0000;transition:box-shadow .2s ease;z-index:100;pointer-events:none}#app.scrolled:before{box-shadow:0 4px 12px #00000026}@media(max-width:768px){body:has(.bottom-nav:not(.hidden)) #app-layout{height:calc(100vh - 60px - env(safe-area-inset-bottom,var(--android-nav-bar-height, 0px)))}}@media(max-width:768px){body{padding:0}#app-layout{flex-direction:row}}.epx-container{max-width:1200px;margin:0 auto}.epx-inner{background:var(--color-bg-base);overflow:hidden;max-width:100%;margin:0 auto}.epx-layout-split-20-80{display:grid;grid-template-columns:minmax(150px,180px) 1fr;gap:24px;min-height:calc(100vh - 140px)}.epx-left-column{padding-right:4px}.epx-right-column{padding:12px;min-width:0;display:flex;flex-direction:column}@media(max-width:1023px){.epx-layout-split-20-80{grid-template-columns:1fr}.epx-left-column{padding-right:0}.epx-right-column{padding:12px}}.epx-diagram-section{background:var(--color-bg-alt);padding:0;border-bottom:var(--border-width-md) solid var(--color-border);min-height:450px;display:flex;flex-direction:column;overflow:hidden;position:relative}.epx-diagram-tabs{display:flex;background:var(--color-bg-card);border-bottom:var(--border-width-md) solid var(--color-border);gap:4px;padding:4px 8px}.epx-diagram-tab{flex:1;padding:10px 16px;border:none;background:transparent;color:var(--color-text-light);font-size:14px;font-weight:500;cursor:pointer;border-radius:var(--radius-sm);transition:all .2s ease;border-bottom:3px solid transparent}.epx-diagram-tab:hover{background:var(--color-bg-alt);color:var(--color-text)}.epx-diagram-tab.active{background:var(--color-bg-alt);color:var(--color-primary);font-weight:600;border-bottom-color:var(--color-primary)}.epx-diagram-tab-content{display:none;flex:1;padding:4px;margin:12px;align-items:center;justify-content:center;overflow:hidden;position:relative}.epx-diagram-tab-content.active{display:flex}.diagram-container{background:var(--color-bg-alt);padding:18px;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}.diagram-container svg{max-width:100%;height:auto}.epx-diagram-height{height:400px;position:relative}@media(max-width:768px){.epx-diagram-height{height:250px}}.epx-diagram-section svg{width:100%;height:auto;max-width:100%;min-height:400px;display:block;cursor:grab}.epx-diagram-section svg:active{cursor:grabbing}.epx-diagram-toolbar{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;background:var(--color-bg-alt);gap:16px;min-height:48px;border-radius:0 0 8px 8px}.epx-toolbar-left{display:flex;align-items:center;gap:6px}.epx-zoom-slider-container{display:flex;align-items:center;justify-content:center;gap:12px;flex:1}.epx-zoom-label{font-size:.75rem;font-weight:500;color:var(--color-text-light);white-space:nowrap}.epx-zoom-slider{width:100%;height:6px;-webkit-appearance:none;appearance:none;background:var(--color-border);border-radius:3px;outline:none;cursor:pointer}.epx-zoom-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:16px;height:16px;background:var(--color-primary);border-radius:50%;cursor:pointer;transition:transform .1s ease}.epx-zoom-slider::-webkit-slider-thumb:hover{transform:scale(1.1)}.epx-zoom-slider::-moz-range-thumb{width:16px;height:16px;background:var(--color-primary);border:none;border-radius:50%;cursor:pointer}.epx-fullscreen-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;padding:0;background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-light);cursor:pointer;transition:all .2s ease;flex-shrink:0}.epx-fullscreen-btn:hover{background:var(--color-bg-alt);color:var(--color-primary);border-color:var(--color-primary)}.epx-fullscreen-btn:active{transform:scale(.95)}.epx-fullscreen-btn svg{width:18px;height:18px}.diagram-fullscreen{position:fixed!important;inset:0!important;width:100vw!important;height:100vh!important;z-index:9999!important;background:var(--color-bg-base)!important;padding:0!important;margin:0!important;border-radius:0!important}.diagram-fullscreen svg{width:100%!important;height:calc(100vh - 60px)!important;max-width:none!important;min-height:auto!important}.diagram-fullscreen .epx-diagram-toolbar{position:fixed;bottom:0;left:0;right:0;background:var(--color-bg-alt);z-index:10000;padding:12px}.epx-fullscreen-btn.is-fullscreen svg path:nth-child(1){d:path("M4 14h6v6")}.epx-fullscreen-btn.is-fullscreen svg path:nth-child(2){d:path("M20 10h-6V4")}.epx-fullscreen-btn.is-fullscreen svg path:nth-child(3){d:path("M14 10l6-6")}.epx-fullscreen-btn.is-fullscreen svg path:nth-child(4){d:path("M4 20l6-6")}.epx-fullscreen-close{position:fixed;top:24%;right:16px;z-index:10001;display:flex;align-items:center;justify-content:center;width:44px;height:44px;background:var(--color-bg-card);border:2px solid var(--color-border);border-radius:50%;color:var(--color-text);cursor:pointer;transition:all .2s ease}.epx-fullscreen-close:hover{background:var(--color-error);color:#fff;border-color:var(--color-error);transform:scale(1.1)}.epx-fullscreen-close svg{width:24px;height:24px}.epx-results{display:block;padding:0;background:var(--color-bg-base);color:var(--color-text)}.epx-results.epx-show{display:block}.epx-results-header{display:flex;justify-content:space-between;align-items:center;padding:.75rem 1rem;background:var(--color-bg-card);border-bottom:1px solid var(--color-border)}.epx-warnings{padding:1rem;background:var(--color-warning-bg);border-left:4px solid var(--color-warning);margin-bottom:1rem;border-radius:var(--radius-sm)}.epx-warning-item{display:flex;align-items:flex-start;gap:.5rem;padding:.5rem 0}.epx-warning-item:not(:last-child){border-bottom:1px solid var(--color-warning-border)}.epx-warning-icon{font-size:1.25rem;flex-shrink:0}.epx-warning-text{flex:1;color:var(--color-warning-text);font-size:.875rem;line-height:1.5}.epx-results h2{font-size:1.125rem;margin:0;padding:0}.epx-results-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2px;padding:2px;background:var(--color-border)}.epx-result-card{display:flex;flex-direction:row;justify-content:space-between;align-items:center;gap:.5rem;padding:.75rem 1rem;background:var(--color-bg-card)}.epx-result-label{font-size:.75rem;font-weight:500;text-transform:uppercase;letter-spacing:.025em;color:var(--color-text-light)}.epx-result-value{font-size:1.125rem;font-weight:600;color:var(--color-text);line-height:1.2;text-align:right}.epx-result-value span{color:var(--color-text)!important}@media(max-width:768px){.epx-result-card{flex-direction:row;justify-content:space-between;align-items:center;gap:.75rem;padding:.65rem .85rem}.epx-result-label{font-size:.74rem;flex:1;min-width:0}.epx-result-value{font-size:1rem;text-align:right;white-space:nowrap}}.epx-toolbar{display:flex;align-items:center;gap:12px;padding:8px;background-color:var(--color-bg-base);border-bottom:1px solid var(--color-border)}@media(max-width:768px){.epx-toolbar{position:fixed;top:var(--admob-overlay-height, env(safe-area-inset-top, var(--android-status-bar-height, 0px)));left:0;right:0;z-index:200;transition:transform .3s ease}.epx-inner{padding-top:56px;padding-bottom:calc(80px + env(safe-area-inset-bottom,0px))}.epx-toolbar.toolbar-hidden{transform:translateY(-100%);pointer-events:none}}.epx-brand{font-family:Geist,serif;font-weight:700;font-size:1.25rem;color:var(--color-primary-dark);margin-right:auto;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(max-width:768px){.epx-brand{display:none}}.epx-export-btn{display:flex;align-items:center;gap:6px;padding:6px 8px;background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-sm);font-size:14px;cursor:pointer;transition:all .2s ease;margin-left:auto}.epx-export-btn:hover{background:var(--color-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.epx-export-btn:active{transform:translateY(0)}.epx-export-btn svg{width:20px;height:20px;flex-shrink:0}@media(max-width:768px){.epx-export-btn{padding:8px;gap:0}.epx-export-text{display:none}}@media(min-width:769px)and (max-width:1023px){.epx-brand{font-size:1.1rem}}.epx-menu-toggle-btn{display:flex;align-items:center;justify-content:center;padding:8px;background:none;border:none;color:var(--color-text);cursor:pointer;border-radius:4px;transition:background-color .2s ease}.epx-menu-toggle-btn:hover{background-color:var(--color-border)}.epx-menu-toggle-btn svg{width:18px;height:18px}@media(min-width:769px){.epx-menu-toggle-btn{display:none}}.epx-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 16px;border-radius:var(--radius-md);border:none;cursor:pointer;transition:all .2s ease;text-decoration:none;line-height:1.5}.epx-btn:disabled{opacity:.6;cursor:not-allowed}.epx-btn-primary{background:var(--color-primary);color:#fff}.epx-btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}.epx-btn-secondary{background:var(--color-bg-card);border:1px solid var(--color-border);color:var(--color-text)}.epx-btn-secondary:hover:not(:disabled){background:var(--color-bg-alt);border-color:var(--color-primary)}.epx-btn-danger{background:#dc3545;color:#fff}.epx-btn-danger:hover:not(:disabled){background:#c82333}.epx-btn-icon{padding:0;width:36px;height:36px;font-size:1.2rem}.epx-w-full{width:100%}.epx-full-width{max-width:100%}.epx-tabs,.epx-toggle-container,.concrete-tabs{display:flex;gap:4px;background:var(--color-bg-alt);padding:4px}.epx-tabs,.concrete-tabs{border-radius:8px 8px 0 0}.epx-toggle-container{cursor:pointer;-webkit-user-select:none;user-select:none;width:fit-content;min-width:180px;border-radius:8px;position:relative}.epx-section-header{display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:40px}.epx-section-header h3{margin:0}.epx-section-header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}.epx-section-header-actions .toggle-icon{display:inline-flex;align-items:center;line-height:1}.epx-toggle-input{display:none}.epx-toggle-labels{display:flex;gap:4px}.epx-toggle-option{flex:1;padding:0 6px;height:32px;text-align:center;font-size:14px;color:var(--color-text-light);border-radius:8px;transition:all .2s ease;white-space:nowrap;display:flex;align-items:center;justify-content:center}.epx-toggle-slider{display:none}.epx-toggle-input:not(:checked)~.epx-toggle-labels .epx-toggle-option:nth-child(1){background-color:var(--color-primary);color:#fff;box-shadow:var(--shadow-sm)}.epx-toggle-input:checked~.epx-toggle-labels .epx-toggle-option:nth-child(2){background-color:var(--color-primary);color:#fff;box-shadow:var(--shadow-sm)}.epx-toggle-input:not(:checked)~.epx-toggle-labels .epx-toggle-option:nth-child(2):hover,.epx-toggle-input:checked~.epx-toggle-labels .epx-toggle-option:nth-child(1):hover{color:var(--color-text);background-color:#5d7f521a}.epx-tab{flex:1;padding:8px 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