:root{--primary-color:#0a1628;--secondary-color:#006d77;--accent-color:#b07c3a;--neutral-color:#e5e5e7;--background-color:#fff;--surface-color:#f8f9fa;--text-color:#1a1a1a;--text-secondary:#64748b;--success-color:#2a5434;--border-color:rgba(0,0,0,0.08);--shadow-sm:0 1px 3px 0 rgba(0,0,0,0.1),0 1px 2px 0 rgba(0,0,0,0.06);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05);--font-primary:'Inter Tight',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--font-body:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--font-mono:'JetBrains Mono','Courier New',monospace;--space-xs:.25rem;--space-sm:.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--space-3xl:4rem;--max-width:1200px;--header-height:72px;--transition-fast:150ms ease-in-out;--transition-base:200ms ease-in-out;--transition-slow:300ms ease-in-out}[data-theme="dark"]{--primary-color:#e5e5e7;--secondary-color:#4ecdc4;--accent-color:#dda15e;--background-color:#0a1628;--surface-color:#1a2332;--text-color:#e5e5e7;--text-secondary:#94a3b8;--border-color:rgba(255,255,255,0.1);--shadow-sm:0 1px 3px 0 rgba(0,0,0,0.3);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.3);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.3)}*{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-body);color:var(--text-color);background-color:var(--background-color);line-height:1.6;transition:background-color var(--transition-slow),color var(--transition-slow)}h1,h2,h3,h4,h5,h6{font-family:var(--font-primary);font-weight:600;line-height:1.2;margin-bottom:var(--space-md)}h1{font-size:3rem}h2{font-size:2.25rem}h3{font-size:1.5rem}h4{font-size:1.25rem}h5{font-size:1.125rem}h6{font-size:1rem}p{margin-bottom:var(--space-md)}a{color:var(--secondary-color);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--accent-color)}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 var(--space-lg)}.main-header{position:fixed;top:0;left:0;right:0;height:var(--header-height);background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color);z-index:1000;transition:all var(--transition-base)}[data-theme="dark"] .main-header{background:rgba(26,35,50,0.95)}.navbar{display:flex;align-items:center;justify-content:space-between;height:100%}.nav-brand{display:flex;align-items:center}.logo{display:flex;align-items:center;gap:var(--space-sm);font-family:var(--font-primary);font-size:1.5rem;font-weight:700;color:var(--text-color);transition:transform var(--transition-fast)}.logo:hover{transform:translateY(-1px)}.logo-icon{font-size:1.75rem}.nav-menu{display:flex;align-items:center;gap:var(--space-xl)}.nav-list{display:flex;list-style:none;gap:var(--space-lg)}.nav-link{color:var(--text-color);font-weight:500;padding:var(--space-sm) 0;position:relative;transition:color var(--transition-fast)}.nav-link::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background-color:var(--secondary-color);transition:width var(--transition-fast)}.nav-item.active .nav-link::after,.nav-link:hover::after{width:100%}.nav-toggle{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:var(--space-sm)}.nav-toggle span{display:block;width:24px;height:2px;background-color:var(--text-color);transition:all var(--transition-fast)}.nav-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.nav-toggle.active span:nth-child(2){opacity:0}.nav-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}.theme-toggle{background:none;border:none;cursor:pointer;padding:var(--space-sm);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background-color var(--transition-fast)}.theme-toggle:hover{background-color:var(--surface-color)}.theme-icon-light,.theme-icon-dark{display:none;color:var(--text-color)}[data-theme="light"] .theme-icon-dark,body:not([data-theme]) .theme-icon-dark{display:block}[data-theme="dark"] .theme-icon-light{display:block}.hero{padding-top:calc(var(--header-height) + var(--space-3xl));padding-bottom:var(--space-3xl);background:linear-gradient(135deg,var(--surface-color) 0%,var(--background-color) 100%);min-height:80vh;display:flex;align-items:center}.hero-content{text-align:center;max-width:800px;margin:0 auto}.hero-title{font-size:clamp(2.5rem,5vw,4rem);margin-bottom:var(--space-lg);background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:1.25rem;color:var(--text-secondary);margin-bottom:var(--space-2xl)}.search-wrapper{margin-bottom:var(--space-2xl);max-width:600px;margin-left:auto;margin-right:auto}.gsc-control-cse{background-color:transparent!important;border:none!important;padding:0!important;margin:0!important}.quick-stats{display:flex;justify-content:center;gap:var(--space-2xl);flex-wrap:wrap}.stat-item{text-align:center}.stat-number{display:block;font-size:2.5rem;font-weight:700;color:var(--secondary-color);font-family:var(--font-primary)}.stat-label{font-size:.875rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.features{padding:var(--space-3xl) 0;background-color:var(--surface-color)}.section-title{text-align:center;margin-bottom:var(--space-2xl)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-xl)}.feature-card{background:var(--background-color);padding:var(--space-xl);border-radius:16px;box-shadow:var(--shadow-md);text-align:center;transition:all var(--transition-base);border:1px solid var(--border-color)}.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.feature-icon{display:inline-flex;align-items:center;justify-content:center;width:80px;height:80px;background:linear-gradient(135deg,var(--secondary-color) 0%,var(--accent-color) 100%);border-radius:20px;margin-bottom:var(--space-lg)}.feature-icon svg{color:white}.feature-card h3{font-size:1.25rem;margin-bottom:var(--space-sm)}.feature-card p{color:var(--text-secondary);margin-bottom:0}.categories-preview{padding:var(--space-3xl) 0}.category-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-xl);margin-bottom:var(--space-2xl)}.category-card{display:flex;flex-direction:column;align-items:center;padding:var(--space-xl);background:var(--surface-color);border-radius:16px;border:2px solid transparent;transition:all var(--transition-base);text-align:center}.category-card:hover{border-color:var(--secondary-color);transform:translateY(-2px);box-shadow:var(--shadow-md)}.category-icon{font-size:3rem;margin-bottom:var(--space-md)}.category-card h3{color:var(--text-color);margin-bottom:var(--space-sm)}.category-card p{color:var(--text-secondary);margin-bottom:0}.cta-wrapper{text-align:center}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--space-sm) var(--space-xl);border-radius:8px;font-weight:600;font-size:1rem;border:2px solid transparent;cursor:pointer;transition:all var(--transition-fast);text-decoration:none;font-family:var(--font-body)}.btn-primary{background-color:var(--secondary-color);color:white}.btn-primary:hover{background-color:var(--accent-color);transform:translateY(-2px);box-shadow:var(--shadow-md)}.about{padding:var(--space-3xl) 0;background-color:var(--surface-color)}.about-content{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-3xl);align-items:center}.about-features{margin-top:var(--space-xl);display:flex;flex-direction:column;gap:var(--space-md)}.about-feature{display:flex;align-items:center;gap:var(--space-sm)}.about-feature svg{color:var(--success-color);flex-shrink:0}.image-placeholder{background:var(--background-color);border-radius:16px;padding:var(--space-3xl);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md)}.image-placeholder svg{color:var(--secondary-color);opacity:.2}.contact{padding:var(--space-3xl) 0}.contact-content{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-3xl);max-width:900px;margin:0 auto}.contact-methods{margin-top:var(--space-xl)}.contact-method{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-md)}.contact-method svg{color:var(--secondary-color)}.contact-form{background:var(--surface-color);padding:var(--space-xl);border-radius:16px;box-shadow:var(--shadow-md)}.form-group{margin-bottom:var(--space-lg)}.form-group label{display:block;margin-bottom:var(--space-sm);font-weight:500;color:var(--text-color)}.form-group input,.form-group textarea{width:100%;padding:var(--space-sm) var(--space-md);border:2px solid var(--border-color);border-radius:8px;background-color:var(--background-color);color:var(--text-color);font-size:1rem;font-family:var(--font-body);transition:all var(--transition-fast)}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--secondary-color);box-shadow:0 0 0 4px rgba(0,109,119,0.1)}.main-footer{background-color:var(--primary-color);color:white;padding:var(--space-2xl) 0 var(--space-lg)}[data-theme="dark"] .main-footer{background-color:var(--surface-color)}.footer-content{display:grid;grid-template-columns:2fr 1fr 1fr;gap:var(--space-2xl);margin-bottom:var(--space-2xl)}.footer-logo{display:flex;align-items:center;gap:var(--space-sm);font-size:1.25rem;font-weight:700;margin-bottom:var(--space-md)}.footer-brand p{color:rgba(255,255,255,0.8)}.footer-links h4,.footer-legal h4{margin-bottom:var(--space-md);font-size:1rem;text-transform:uppercase;letter-spacing:.05em}.footer-links ul,.footer-legal ul{list-style:none}.footer-links li,.footer-legal li{margin-bottom:var(--space-sm)}.footer-links a,.footer-legal a{color:rgba(255,255,255,0.8);transition:color var(--transition-fast)}.footer-links a:hover,.footer-legal a:hover{color:white}.footer-bottom{text-align:center;padding-top:var(--space-xl);border-top:1px solid rgba(255,255,255,0.1);color:rgba(255,255,255,0.6)}.disclaimer{font-size:.875rem;color:rgba(255,255,255,0.5);line-height:1.4;max-width:800px;margin:var(--space-lg) auto 0;text-align:center;padding:0 var(--space-md)}[data-theme="dark"] .disclaimer{color:rgba(255,255,255,0.4)}.footer-social{margin-top:var(--space-md)}.social-link-x{display:inline-flex;align-items:center;gap:var(--space-sm);color:rgba(255,255,255,0.8);padding:var(--space-sm) var(--space-md);border-radius:24px;background-color:rgba(255,255,255,0.1);transition:all var(--transition-fast);text-decoration:none;font-size:.875rem}.social-link-x:hover{color:white;background-color:rgba(255,255,255,0.2);transform:translateY(-2px)}.social-link-x svg{flex-shrink:0}@media (max-width:768px){.nav-toggle{display:flex}.nav-menu{position:fixed;top:var(--header-height);left:0;right:0;background-color:var(--background-color);padding:var(--space-xl);transform:translateY(-100%);opacity:0;visibility:hidden;transition:all var(--transition-base);box-shadow:var(--shadow-lg)}.nav-menu.active{transform:translateY(0);opacity:1;visibility:visible}.nav-list{flex-direction:column;gap:var(--space-md)}.nav-link{display:block;padding:var(--space-sm) 0}.hero-title{font-size:2.5rem}.quick-stats{gap:var(--space-lg)}.about-content,.contact-content{grid-template-columns:1fr;gap:var(--space-xl)}.footer-content{grid-template-columns:1fr;text-align:center}.image-placeholder{height:300px}}@media (max-width:480px){.hero{min-height:70vh}.hero-title{font-size:2rem}.hero-subtitle{font-size:1rem}.stat-number{font-size:2rem}.features-grid,.category-cards{grid-template-columns:1fr}}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.hero-content>*{animation:fadeIn .6s ease-out forwards}.hero-title{animation-delay:.1s}.hero-subtitle{animation-delay:.2s}.search-wrapper{animation-delay:.3s}.quick-stats{animation-delay:.4s}.thesaurus-container{max-width:var(--max-width);margin:0 auto;padding:var(--space-lg)}.thesaurus-description{color:var(--text-secondary);font-size:1.125rem;line-height:1.6;margin-bottom:var(--space-xl);max-width:800px}.alphabet-nav{display:flex;flex-wrap:wrap;gap:var(--space-sm);margin-bottom:var(--space-2xl);padding:var(--space-lg);background:var(--surface-color);border-radius:12px;border:1px solid var(--border-color)}.alphabet-link{display:inline-flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;font-family:var(--font-primary);font-weight:600;font-size:1rem;border-radius:8px;text-decoration:none;transition:var(--transition-base)}.alphabet-link.active{background:var(--primary-color);color:white}.alphabet-link.active:hover{background:var(--secondary-color);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.alphabet-link.inactive{background:transparent;color:var(--text-secondary);opacity:.5;cursor:not-allowed}.letter-section{margin-bottom:var(--space-3xl)}.letter-heading{font-family:var(--font-primary);font-size:2rem;font-weight:700;color:var(--primary-color);margin-bottom:var(--space-lg);padding-bottom:var(--space-sm);border-bottom:3px solid var(--accent-color);position:sticky;top:0;background:var(--background-color);z-index:10}.keywords-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:var(--space-sm)}.keyword-link{display:block;padding:var(--space-sm) var(--space-md);background:var(--surface-color);color:var(--text-color);text-decoration:none;border-radius:6px;border:1px solid var(--border-color);font-size:.875rem;font-weight:500;transition:var(--transition-base);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.keyword-link:hover{background:var(--primary-color);color:white;border-color:var(--primary-color);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.thesaurus-stats{margin-top:var(--space-3xl);padding:var(--space-lg);background:var(--surface-color);border-radius:12px;border:1px solid var(--border-color)}.thesaurus-stats h3{font-family:var(--font-primary);font-size:1.125rem;font-weight:600;color:var(--primary-color);margin-bottom:var(--space-md)}.thesaurus-stats ul{list-style:none;padding:0;margin:0}.thesaurus-stats li{padding:var(--space-xs) 0;color:var(--text-secondary);font-size:.875rem}.thesaurus-stats strong{color:var(--text-color);font-weight:600}[data-theme="dark"] .alphabet-nav{background:rgba(255,255,255,0.05);border-color:rgba(255,255,255,0.1)}[data-theme="dark"] .alphabet-link.active{background:var(--accent-color)}[data-theme="dark"] .letter-heading{color:var(--neutral-color);background:var(--primary-color)}[data-theme="dark"] .keyword-link{background:rgba(255,255,255,0.05);color:var(--neutral-color);border-color:rgba(255,255,255,0.1)}[data-theme="dark"] .keyword-link:hover{background:var(--accent-color);border-color:var(--accent-color)}[data-theme="dark"] .thesaurus-stats{background:rgba(255,255,255,0.05);border-color:rgba(255,255,255,0.1)}@media (max-width:768px){.thesaurus-container{padding:var(--space-md)}.alphabet-nav{gap:var(--space-xs);padding:var(--space-md)}.alphabet-link{width:2rem;height:2rem;font-size:.875rem}.letter-heading{font-size:1.5rem}.keywords-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:var(--space-xs)}.keyword-link{padding:var(--space-xs) var(--space-sm);font-size:.813rem}}