:root{--font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--color-bg-base: #f7f7f7;--color-bg-surface: #ffffff;--color-bg-input: #ffffff;--color-text-main: #1f1f1f;--color-text-muted: #737373;--color-border: #e5e5e5;--color-primary: #1f1f1f;--color-primary-hover: #000000;--color-primary-active: #000000;--color-primary-light: #e5e5e5;--color-success: #1f1f1f;--color-error: #1f1f1f;--color-warning: #1f1f1f;--shadow-sm: none;--shadow-md: none;--shadow-lg: none;--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: 0;--radius-md: 0;--radius-lg: 0;--radius-xl: 0;--radius-2xl: 0}[data-theme=dark]{--color-bg-base: #121212;--color-bg-surface: #1a1a1a;--color-bg-input: #262626;--color-text-main: #f5f5f5;--color-text-muted: #a3a3a3;--color-border: #262626;--color-primary-light: #404040;--shadow-sm: none;--shadow-md: none;--shadow-lg: none}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-sans);color:var(--color-text-main);background-color:var(--color-bg-base);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .2s ease,color .2s ease}body{min-height:100vh;display:flex;flex-direction:column}#root,.app-container{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1;width:100%;max-width:1024px;margin:0 auto;padding:var(--space-8) var(--space-4)}a{color:inherit;text-decoration:none}button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit}h1{font-size:2.25rem;font-weight:700;line-height:1.2;margin-bottom:var(--space-4);color:var(--color-text-main)}h2{font-size:1.5rem;font-weight:600;line-height:1.3;margin-bottom:var(--space-4);margin-top:var(--space-8);color:var(--color-text-main)}p{margin-bottom:var(--space-4);color:var(--color-text-muted)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--space-2) var(--space-4);border-radius:var(--radius-md);font-weight:500;transition:all .2s ease}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-hover)}.btn-secondary{background-color:var(--color-bg-input);border:1px solid var(--color-border);color:var(--color-text-main)}.btn-secondary:hover{background-color:var(--color-bg-base)}.card{background-color:var(--color-bg-surface);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-sm);border:1px solid var(--color-border)}.input-field{width:100%;padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-bg-input);color:var(--color-text-main);font-family:var(--font-sans);font-size:1rem;transition:border-color .2s ease,box-shadow .2s ease}.input-field:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 2px var(--color-primary-light)}textarea.input-field{resize:vertical;min-height:120px}@media (max-width: 768px){h1{font-size:1.875rem}.main-content{padding:var(--space-4)}.input-field{font-size:1.125rem}textarea.input-field{min-height:80px}}.language-switcher{display:flex;align-items:center;margin-right:var(--space-4)}.language-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-color:transparent;border:1px solid var(--border-color);color:var(--text-color);padding:var(--space-2) var(--space-5) var(--space-2) var(--space-3);font-family:inherit;font-size:.875rem;border-radius:var(--radius-md);cursor:pointer;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right .5rem center;background-size:1em;outline:none;transition:all var(--transition-fast)}.language-select:focus{border-color:var(--primary-color);box-shadow:0 0 0 2px #6366f133}.language-select option{background-color:var(--bg-color);color:var(--text-color)}.header{background-color:transparent;border-bottom:1px solid var(--color-border);position:relative;z-index:100}.header-container{max-width:1200px;margin:0 auto;padding:var(--space-4) var(--space-6);display:flex;align-items:center;justify-content:space-between}.logo{font-family:var(--font-mono);font-weight:700;font-size:1rem;letter-spacing:.1em;color:var(--color-text-main)}.header-right{display:flex;align-items:center;gap:var(--space-4)}.location-text{font-size:.875rem;color:var(--color-text-muted);font-family:var(--font-sans)}.theme-toggle{color:var(--color-text-muted);display:flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-2);transition:color .2s ease}.theme-toggle:hover{color:var(--color-text-main)}.theme-toggle-text,.header-nav{display:flex;align-items:center;gap:var(--space-6)}.nav-link{font-family:var(--font-sans);font-size:.875rem;font-weight:500;color:var(--color-text-muted);text-decoration:none;transition:color .2s ease;position:relative;padding:var(--space-1) 0}.nav-link:hover,.nav-link.active{color:var(--color-text-main)}.nav-link.active:after{content:"";position:absolute;bottom:-4px;left:0;right:0;height:2px;background-color:var(--color-text-main)}.header-divider{width:1px;height:16px;background-color:var(--color-border)}.mobile-menu-toggle{display:none;color:var(--color-text-main);padding:var(--space-2);cursor:pointer}@media (max-width: 768px){.mobile-menu-toggle{display:flex;align-items:center;justify-content:center}.header-right{position:absolute;top:100%;left:0;right:0;background-color:var(--color-bg-surface);border-bottom:1px solid var(--color-border);flex-direction:column;align-items:stretch;gap:0;padding:0;display:none;box-shadow:var(--shadow-md)}.header-right.is-open{display:flex}.header-nav{flex-direction:column;align-items:stretch;gap:0}.nav-link{padding:var(--space-4) var(--space-6);border-bottom:1px solid var(--color-border);width:100%;font-size:1rem}.nav-link.active:after{display:none}.header-divider{display:none}.location-text{padding:var(--space-4) var(--space-6);border-bottom:1px solid var(--color-border);text-align:center}.theme-toggle{padding:var(--space-4) var(--space-6);justify-content:center;width:100%}.theme-toggle-text{display:inline-block;font-family:var(--font-sans);font-size:1rem}.header-right>.language-switcher-container,.header-right>div:not(.header-nav){border-bottom:1px solid var(--color-border);padding:var(--space-3) var(--space-6);display:flex;justify-content:center}}.footer{background-color:transparent;padding:var(--space-12) 0 var(--space-16) 0;text-align:center}.footer-container{display:flex;flex-direction:column;align-items:center;gap:var(--space-2)}.footer-brand{font-family:var(--font-mono);font-size:.875rem;letter-spacing:.15em;font-weight:700;color:var(--color-text-main);margin-bottom:var(--space-2)}.footer-tagline{font-family:var(--font-sans);font-size:.875rem;color:var(--color-text-muted)}.footer-copyright{font-size:.75rem;color:var(--color-text-muted);margin-top:var(--space-8)}.app-container{background-image:linear-gradient(to right,rgba(0,0,0,.03) 1px,transparent 1px),linear-gradient(to bottom,rgba(0,0,0,.03) 1px,transparent 1px);background-size:40px 40px;background-position:center top}[data-theme=dark] .app-container{background-image:linear-gradient(to right,rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.02) 1px,transparent 1px)}.homepage{max-width:1000px;margin:0 auto;padding:0 var(--space-6);text-align:center}.section-divider{border:none;border-top:1px solid var(--color-border);margin:var(--space-20) 0}.section-heading{font-family:var(--font-mono);font-size:.875rem;letter-spacing:.15em;color:var(--color-text-muted);font-weight:500;margin-bottom:var(--space-8);margin-top:0}.section-paragraph{max-width:680px;margin:0 auto;font-size:1.125rem;line-height:1.7;color:var(--color-text-main);font-weight:400}.hero-section{padding:var(--space-24) 0;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:50vh}.hero-mark{font-family:var(--font-mono);font-size:.875rem;letter-spacing:.2em;color:var(--color-text-muted);margin-bottom:var(--space-8)}.hero-headline{font-family:var(--font-mono);font-size:clamp(1.5rem,4vw,2.5rem);line-height:1.4;letter-spacing:.05em;color:var(--color-text-main);margin-bottom:var(--space-8);font-weight:700}.hero-subtext{font-family:var(--font-sans);font-size:1rem;color:var(--color-text-muted);max-width:600px;margin:0 auto;letter-spacing:.02em}.about-section,.platform-section{padding:var(--space-8) 0}.platform-grid{display:grid;grid-template-columns:1fr;gap:var(--space-12);margin-top:var(--space-12)}.platform-col{text-align:center}.platform-col h3{font-family:var(--font-mono);font-size:.875rem;letter-spacing:.1em;color:var(--color-text-main);margin-bottom:var(--space-4)}.platform-col p{font-size:.9375rem;color:var(--color-text-muted);line-height:1.6;max-width:250px;margin:0 auto}.mission-section{padding:var(--space-8) 0}@media (min-width: 768px){.platform-grid{grid-template-columns:repeat(3,1fr);gap:var(--space-8)}}.text-tools-page{max-width:1000px;margin:0 auto;padding:var(--space-12) var(--space-6) var(--space-20) var(--space-6)}.page-header{text-align:center}.page-heading{font-family:var(--font-mono);font-size:1.5rem;letter-spacing:.1em;color:var(--color-text-main);margin-bottom:var(--space-4)}.page-subtitle{font-size:1.125rem;color:var(--color-text-muted);max-width:600px;margin:0 auto;line-height:1.6}.tools-grid-full{display:grid;grid-template-columns:1fr;gap:var(--space-0);border:1px solid var(--color-border);background-color:transparent}.tool-card-minimal{display:flex;flex-direction:column;padding:var(--space-6);border-bottom:1px solid var(--color-border);background-color:transparent;color:inherit;text-decoration:none;transition:background-color .2s ease}.tool-card-minimal:last-child{border-bottom:none}.tool-card-minimal:hover{background-color:var(--color-bg-surface)}.tool-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-4)}.tool-title{font-family:var(--font-mono);font-size:.875rem;font-weight:600;letter-spacing:.05em;color:var(--color-text-main)}.tool-icon-minimal{color:var(--color-text-muted);display:flex;align-items:center;justify-content:center}.tool-desc{font-size:.9375rem;color:var(--color-text-muted);margin:0;line-height:1.5}.seo-content-minimal{text-align:center;padding:var(--space-4) 0}@media (min-width: 768px){.tools-grid-full{grid-template-columns:repeat(2,1fr)}.tool-card-minimal:nth-child(odd){border-right:1px solid var(--color-border)}.tool-card-minimal:nth-last-child(-n+2):nth-child(odd),.tool-card-minimal:last-child{border-bottom:none}.tools-grid-full:nth-last-child(1) .tool-card-minimal:nth-last-child(2):nth-child(odd){border-bottom:1px solid var(--color-border)}}.dev-tools-page{padding-bottom:40px}