:root{--color-bg: #FAFAFA;--color-surface: #FFFFFF;--color-surface-elevated: #FFFFFF;--color-border: #E5E5E5;--color-border-subtle: #F0F0F0;--color-text-primary: #1A1A1A;--color-text-secondary: #666666;--color-text-tertiary: #999999;--color-text-inverted: #FFFFFF;--color-accent: #2563EB;--color-accent-hover: #1D4ED8;--color-accent-light: #DBEAFE;--color-accent-subtle: #EFF6FF;--color-success: #10B981;--color-warning: #F59E0B;--color-error: #EF4444;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-family-mono: "JetBrains Mono", "Fira Code", monospace;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-size-4xl: 2.5rem;--font-size-5xl: 3.5rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.2;--line-height-normal: 1.5;--line-height-relaxed: 1.75;--letter-spacing-tight: -.02em;--letter-spacing-normal: 0;--letter-spacing-wide: .05em;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--space-24: 6rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-2xl: 24px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .06);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .08);--shadow-xl: 0 16px 48px rgba(0, 0, 0, .1);--shadow-hover: 0 8px 32px rgba(37, 99, 235, .12);--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease;--transition-spring: .5s cubic-bezier(.34, 1.56, .64, 1);--z-base: 0;--z-dropdown: 100;--z-sticky: 200;--z-modal: 300;--z-tooltip: 400}[data-theme=dark]{--color-bg: #0A0A0A;--color-surface: #141414;--color-surface-elevated: #1A1A1A;--color-border: #2A2A2A;--color-border-subtle: #1F1F1F;--color-text-primary: #FAFAFA;--color-text-secondary: #A0A0A0;--color-text-tertiary: #666666;--color-text-inverted: #0A0A0A;--color-accent: #3B82F6;--color-accent-hover: #60A5FA;--color-accent-light: #1E3A5F;--color-accent-subtle: #0F172A;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .5);--shadow-xl: 0 16px 48px rgba(0, 0, 0, .6);--shadow-hover: 0 8px 32px rgba(59, 130, 246, .2)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:var(--font-size-base);font-weight:var(--font-weight-normal);line-height:var(--line-height-normal);color:var(--color-text-primary);background-color:var(--color-bg);min-height:100vh}#root{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{font-weight:var(--font-weight-semibold);line-height:var(--line-height-tight);letter-spacing:var(--letter-spacing-tight);color:var(--color-text-primary)}h1{font-size:var(--font-size-5xl);font-weight:var(--font-weight-bold)}h2{font-size:var(--font-size-4xl)}h3{font-size:var(--font-size-3xl)}h4{font-size:var(--font-size-2xl)}p{color:var(--color-text-secondary);line-height:var(--line-height-relaxed)}a{color:var(--color-accent);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-accent-hover)}button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none}input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}img{max-width:100%;height:auto;display:block}::selection{background-color:var(--color-accent-light);color:var(--color-text-primary)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--color-border-subtle)}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-tertiary)}.container{width:100%;max-width:1280px;margin:0 auto;padding:0 var(--space-6)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes drawLine{0%{stroke-dashoffset:1000}to{stroke-dashoffset:0}}@keyframes gridFlow{0%{transform:translateY(0)}to{transform:translateY(40px)}}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.page-enter{opacity:0;transform:translateY(10px)}.page-enter-active{opacity:1;transform:translateY(0);transition:opacity var(--transition-slow),transform var(--transition-slow)}.page-exit{opacity:1}.page-exit-active{opacity:0;transition:opacity var(--transition-normal)}.skeleton{background:linear-gradient(90deg,var(--color-border-subtle) 25%,var(--color-surface) 50%,var(--color-border-subtle) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-md)}.grid-pattern{background-image:linear-gradient(var(--color-border-subtle) 1px,transparent 1px),linear-gradient(90deg,var(--color-border-subtle) 1px,transparent 1px);background-size:40px 40px}.glass{background:#fffc;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--color-border)}.card-hover{transition:transform var(--transition-normal),box-shadow var(--transition-normal)}.card-hover:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}.grid-background{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:-1;overflow:hidden}.grid-lines{position:absolute;inset:0}.grid-line{position:absolute;background:var(--color-border)}.grid-line.vertical{width:1px;height:100%;transform-origin:top}.grid-line.horizontal{width:100%;height:1px;transform-origin:left}.grid-accents{position:absolute;inset:0}.grid-accent{position:absolute;width:8px;height:8px;background:var(--color-accent);border-radius:50%;filter:blur(1px)}.header{position:fixed;top:0;left:0;right:0;z-index:var(--z-sticky);background:#fafafad9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border-subtle)}.header-container{max-width:1280px;margin:0 auto;padding:0 var(--space-6);height:72px;display:flex;align-items:center;justify-content:space-between}.header-logo{display:flex;align-items:baseline;gap:2px;font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);text-decoration:none;letter-spacing:var(--letter-spacing-tight)}.logo-arch{color:var(--color-text-primary)}.logo-studio{color:var(--color-accent)}.header-nav{display:flex;align-items:center;gap:var(--space-1)}.nav-link{position:relative;padding:var(--space-2) var(--space-4);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);text-decoration:none;border-radius:var(--radius-md);transition:color var(--transition-fast),background-color var(--transition-fast)}.nav-link:hover{color:var(--color-text-primary);background-color:var(--color-border-subtle)}.nav-link.active{color:var(--color-accent)}.nav-indicator{position:absolute;bottom:-1px;left:var(--space-4);right:var(--space-4);height:2px;background:var(--color-accent);border-radius:var(--radius-full)}@media(max-width:768px){.header-container{padding:0 var(--space-4);height:64px}.header-nav{gap:0}.nav-link{padding:var(--space-2) var(--space-3);font-size:var(--font-size-xs)}}.theme-toggle{display:flex;align-items:center;justify-content:center;width:44px;height:44px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-full);cursor:pointer;font-size:20px;transition:background-color var(--transition-fast),border-color var(--transition-fast),transform var(--transition-fast)}.theme-toggle:hover{background:var(--color-border-subtle);transform:scale(1.05)}.theme-toggle:active{transform:scale(.95)}[data-theme=dark] .header{background:#0a0a0ad9}.button{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);font-weight:var(--font-weight-medium);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.button:disabled{opacity:.5;cursor:not-allowed}.button-primary{background:var(--color-accent);color:var(--color-text-inverted);box-shadow:var(--shadow-sm)}.button-primary:hover:not(:disabled){background:var(--color-accent-hover);box-shadow:var(--shadow-md)}.button-secondary{background:var(--color-surface);color:var(--color-text-primary);border:1px solid var(--color-border)}.button-secondary:hover:not(:disabled){background:var(--color-border-subtle);border-color:var(--color-text-tertiary)}.button-ghost{background:transparent;color:var(--color-text-secondary)}.button-ghost:hover:not(:disabled){background:var(--color-border-subtle);color:var(--color-text-primary)}.button-sm{height:36px;padding:0 var(--space-4);font-size:var(--font-size-sm)}.button-md{height:44px;padding:0 var(--space-6);font-size:var(--font-size-base)}.button-lg{height:52px;padding:0 var(--space-8);font-size:var(--font-size-lg)}.button-icon{display:flex;align-items:center;justify-content:center}.button-spinner{width:18px;height:18px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.card{display:block;text-decoration:none}.card-inner{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-8);transition:box-shadow var(--transition-normal),border-color var(--transition-normal);cursor:pointer;height:100%;display:flex;flex-direction:column}.card-inner:hover{box-shadow:var(--shadow-lg);border-color:var(--color-border)}.card-icon{width:56px;height:56px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-5);background:var(--color-accent-subtle)}.card-icon span{font-size:24px;display:flex}.card-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-2)}.card-description{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:var(--line-height-relaxed);flex-grow:1}.card-arrow{margin-top:var(--space-6);color:var(--color-accent);opacity:0;transform:translate(-8px);transition:opacity var(--transition-fast),transform var(--transition-fast)}.card-inner:hover .card-arrow{opacity:1;transform:translate(0)}@media(max-width:768px){.card-inner{padding:var(--space-6)}.card-icon{width:48px;height:48px}}.image-upload-container{width:100%}.image-upload-label{display:block;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);margin-bottom:var(--space-3)}.image-upload{position:relative;width:100%;min-height:240px;border:2px dashed var(--color-border);border-radius:var(--radius-xl);background:var(--color-surface);cursor:pointer;overflow:hidden;transition:border-color var(--transition-fast),background-color var(--transition-fast)}.image-upload:hover,.image-upload.dragging{border-color:var(--color-accent);background:var(--color-accent-subtle)}.image-upload.dragging{border-style:solid}.upload-input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}.upload-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-10);text-align:center}.upload-icon{color:var(--color-text-tertiary);margin-bottom:var(--space-4)}.upload-text{display:flex;gap:var(--space-1);margin-bottom:var(--space-2)}.upload-text-primary{color:var(--color-accent);font-weight:var(--font-weight-medium)}.upload-text-secondary{color:var(--color-text-secondary)}.upload-hint{font-size:var(--font-size-xs);color:var(--color-text-tertiary)}.upload-preview{position:relative;width:100%;height:100%;min-height:240px}.upload-preview img{width:100%;height:100%;object-fit:cover}.preview-overlay{position:absolute;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity var(--transition-fast)}.preview-overlay span{color:#fff;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium)}.upload-preview:hover .preview-overlay{opacity:1}.style-selector{width:100%}.style-selector-label{display:block;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);margin-bottom:var(--space-3)}.style-options{display:flex;flex-wrap:wrap;gap:var(--space-2)}.style-option{position:relative;display:flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary);cursor:pointer;transition:all var(--transition-fast)}.style-option:hover{border-color:var(--color-text-tertiary);color:var(--color-text-primary)}.style-option.selected{background:var(--color-accent-subtle);border-color:var(--color-accent);color:var(--color-accent)}.option-icon{font-size:16px}.option-check{position:absolute;top:-6px;right:-6px;width:20px;height:20px;background:var(--color-accent);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center}.progress-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-12);background:var(--color-surface);border-radius:var(--radius-xl);border:1px solid var(--color-border)}.progress-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-2);margin-bottom:var(--space-6)}.progress-cell{width:24px;height:24px;background:var(--color-accent);border-radius:var(--radius-sm)}.progress-message{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-bottom:var(--space-4)}.progress-bar-container{width:200px;height:4px;background:var(--color-border-subtle);border-radius:var(--radius-full);overflow:hidden}.progress-bar{height:100%;background:var(--color-accent);border-radius:var(--radius-full)}.before-after-slider{position:relative;width:100%;min-height:400px;aspect-ratio:16 / 10;border-radius:var(--radius-xl);overflow:hidden;cursor:ew-resize;-webkit-user-select:none;user-select:none;background:var(--color-border-subtle)}.slider-image{position:absolute;inset:0}.slider-image img{width:100%;height:100%;object-fit:cover}.slider-label{position:absolute;bottom:var(--space-4);padding:var(--space-2) var(--space-4);background:#0009;color:#fff;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);border-radius:var(--radius-md);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.before-label{left:var(--space-4)}.after-label{right:var(--space-4)}.slider-handle{position:absolute;top:0;bottom:0;width:4px;transform:translate(-50%);display:flex;flex-direction:column;align-items:center}.slider-line{flex:1;width:3px;background:#fff;box-shadow:0 0 8px #0000004d}.slider-button{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;background:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 12px #0003;color:var(--color-text-primary);transition:transform var(--transition-fast)}.before-after-slider:hover .slider-button{transform:translateY(-50%) scale(1.1)}.before-after-slider:active .slider-button{transform:translateY(-50%) scale(.95)}.home{min-height:100vh}.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--space-20) var(--space-6);text-align:center}.hero-content{max-width:800px}.hero-badge{display:inline-flex;align-items:center;padding:var(--space-2) var(--space-4);background:var(--color-accent-subtle);border:1px solid var(--color-accent-light);border-radius:var(--radius-full);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-accent);margin-bottom:var(--space-8)}.hero-title{font-size:clamp(2.5rem,8vw,4.5rem);font-weight:var(--font-weight-bold);line-height:1.1;letter-spacing:var(--letter-spacing-tight);margin-bottom:var(--space-6)}.gradient-text{background:linear-gradient(135deg,var(--color-accent) 0%,#7C3AED 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-description{font-size:var(--font-size-xl);color:var(--color-text-secondary);line-height:var(--line-height-relaxed);margin-bottom:var(--space-10)}.hero-actions{display:flex;justify-content:center;gap:var(--space-4)}.modules-section{padding:var(--space-24) 0;background:var(--color-surface)}.section-header{text-align:center;margin-bottom:var(--space-12)}.section-header h2{font-size:var(--font-size-3xl);margin-bottom:var(--space-2)}.section-header p{font-size:var(--font-size-lg)}.modules-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-6)}.features-section{padding:var(--space-24) 0}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-8)}.feature{text-align:center;padding:var(--space-8)}.feature-icon{font-size:48px;margin-bottom:var(--space-4)}.feature h3{font-size:var(--font-size-xl);margin-bottom:var(--space-3)}.feature p{font-size:var(--font-size-base)}.stats-section{padding:var(--space-16) 0;background:linear-gradient(135deg,var(--color-accent) 0%,#7C3AED 100%)}.stats-grid{display:flex;justify-content:center;gap:var(--space-16);flex-wrap:wrap}.stat{text-align:center;color:#fff}.stat-number{display:block;font-size:var(--font-size-4xl);font-weight:var(--font-weight-bold);margin-bottom:var(--space-2)}.stat-label{font-size:var(--font-size-base);opacity:.9}@media(max-width:768px){.hero{padding:var(--space-24) var(--space-4);min-height:80vh}.hero-description{font-size:var(--font-size-lg)}.modules-section,.features-section{padding:var(--space-16) 0}.stats-grid{gap:var(--space-8)}.stat-number{font-size:var(--font-size-3xl)}}.module-page{min-height:100vh;padding:calc(72px + var(--space-8)) var(--space-6) var(--space-12);background:var(--color-bg)}.module-container{max-width:1400px;margin:0 auto}.module-header{display:flex;align-items:flex-start;gap:var(--space-5);margin-bottom:var(--space-10)}.module-icon{width:64px;height:64px;border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;font-size:28px;flex-shrink:0}.module-header h1{font-size:var(--font-size-3xl);margin-bottom:var(--space-2)}.module-header p{font-size:var(--font-size-lg);color:var(--color-text-secondary);max-width:600px}.module-content{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-8)}.module-panel{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-2xl);padding:var(--space-8)}.panel-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);margin-bottom:var(--space-6);padding-bottom:var(--space-4);border-bottom:1px solid var(--color-border-subtle)}.options-section{display:flex;flex-direction:column;gap:var(--space-6);margin-top:var(--space-6)}.generate-section{margin-top:var(--space-8);padding-top:var(--space-6);border-top:1px solid var(--color-border-subtle)}.api-warning{font-size:var(--font-size-sm);color:var(--color-warning);margin-bottom:var(--space-4);padding:var(--space-3) var(--space-4);background:#f59e0b1a;border-radius:var(--radius-md)}.output-panel{display:flex;flex-direction:column}.output-area{flex:1;display:flex;align-items:center;justify-content:center;min-height:500px}.empty-state{text-align:center;padding:var(--space-12)}.empty-icon{font-size:64px;margin-bottom:var(--space-4);opacity:.5}.empty-state p{font-size:var(--font-size-base);color:var(--color-text-tertiary);max-width:300px}.output-actions{display:flex;justify-content:center;gap:var(--space-3);margin-top:var(--space-6)}.multi-upload-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-4)}.multi-upload-item{position:relative}.multi-upload-label{font-size:var(--font-size-xs);color:var(--color-text-tertiary);text-transform:uppercase;letter-spacing:var(--letter-spacing-wide);margin-bottom:var(--space-2);display:block}.concept-textarea{width:100%;min-height:120px;padding:var(--space-4);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);font-family:inherit;font-size:var(--font-size-base);line-height:var(--line-height-relaxed);resize:vertical;transition:border-color var(--transition-fast)}.concept-textarea:focus{outline:none;border-color:var(--color-accent)}.concept-textarea::placeholder{color:var(--color-text-tertiary)}.slider-input{width:100%}.slider-label{display:flex;justify-content:space-between;font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-bottom:var(--space-2)}.slider-track{width:100%;height:6px;-webkit-appearance:none;appearance:none;background:var(--color-border);border-radius:var(--radius-full);outline:none}.slider-track::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;background:var(--color-accent);border-radius:50%;cursor:pointer;transition:transform var(--transition-fast)}.slider-track::-webkit-slider-thumb:hover{transform:scale(1.1)}@media(max-width:1024px){.module-content{grid-template-columns:1fr}}@media(max-width:768px){.module-page{padding:calc(64px + var(--space-6)) var(--space-4) var(--space-8)}.module-header{flex-direction:column;gap:var(--space-4)}.module-icon{width:56px;height:56px}.module-panel{padding:var(--space-6)}.multi-upload-grid{grid-template-columns:1fr}}.input-group{margin-bottom:var(--space-4)}.input-label{display:block;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);margin-bottom:var(--space-2)}.text-input{width:100%;padding:var(--space-3) var(--space-4);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);font-size:var(--font-size-base);color:var(--color-text-primary);transition:border-color var(--transition-fast)}.text-input:focus{outline:none;border-color:var(--color-accent)}.text-input::placeholder{color:var(--color-text-tertiary)}.keyword-options{flex-wrap:wrap;gap:var(--space-2)}.board-preview{width:100%;text-align:center}.board-placeholder{background:var(--color-border-subtle);border-radius:var(--radius-xl);padding:var(--space-16) var(--space-8);display:flex;flex-direction:column;align-items:center;gap:var(--space-3)}.board-placeholder span{font-size:48px}.board-placeholder p{font-size:var(--font-size-lg);font-weight:var(--font-weight-medium);color:var(--color-text-primary)}.board-placeholder small{font-size:var(--font-size-sm);color:var(--color-text-tertiary)}.synthesis-result{width:100%}.diagram-preview{width:100%;background:var(--color-border-subtle);border-radius:var(--radius-xl);overflow:hidden;aspect-ratio:16 / 10;display:flex;align-items:center;justify-content:center}.diagram-preview img{width:100%;height:100%;object-fit:cover}.diagram-placeholder{display:flex;flex-direction:column;align-items:center;gap:var(--space-3)}.diagram-placeholder span{font-size:64px}.diagram-placeholder p{font-size:var(--font-size-lg);font-weight:var(--font-weight-medium);color:var(--color-text-secondary)}.diagram-caption{margin-top:var(--space-6);padding:var(--space-5);background:var(--color-accent-subtle);border-radius:var(--radius-lg);border-left:3px solid var(--color-accent)}.diagram-caption h4{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-accent);margin-bottom:var(--space-2);text-transform:uppercase;letter-spacing:var(--letter-spacing-wide)}.diagram-caption p{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:var(--line-height-relaxed)}.error-state{text-align:center;padding:var(--space-8);max-width:400px}.error-icon{font-size:48px;margin-bottom:var(--space-4)}.error-message{font-size:var(--font-size-base);color:var(--color-error);margin-bottom:var(--space-4)}.response-text{margin-top:var(--space-4);margin-bottom:var(--space-4);padding:var(--space-4);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);text-align:left}.response-text h4{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-secondary);margin-bottom:var(--space-2)}.response-text p{font-size:var(--font-size-sm);color:var(--color-text-primary);line-height:var(--line-height-relaxed);max-height:200px;overflow-y:auto}.board-image{width:100%;background:var(--color-border-subtle);border-radius:var(--radius-xl);overflow:hidden;margin-bottom:var(--space-4)}.board-image img{width:100%;height:auto;display:block}