*{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary:#f8f9fa;--bg-secondary:#ffffff;--bg-card:#ffffff;--text-primary:#1a202c;--text-secondary:#718096;--border-color:#e2e8f0;--accent-primary:#4299e1;--accent-hover:#3182ce;--accent-light:#ebf8ff;--success:#48bb78;--warning:#ed8936;--shadow:0 1px 3px rgba(0,0,0,0.06);--shadow-md:0 4px 6px rgba(0,0,0,0.07);--shadow-lg:0 10px 15px rgba(0,0,0,0.1);--shadow-xl:0 20px 25px rgba(0,0,0,0.15)}[data-theme=dark]{--bg-primary:#1a202c;--bg-secondary:#2d3748;--bg-card:#2d3748;--text-primary:#f7fafc;--text-secondary:#a0aec0;--border-color:#4a5568;--accent-primary:#63b3ed;--accent-hover:#4299e1;--accent-light:#2c5282;--success:#68d391;--warning:#f6ad55;--shadow:0 2px 4px rgba(0,0,0,0.4);--shadow-md:0 4px 8px rgba(0,0,0,0.5);--shadow-lg:0 10px 20px rgba(0,0,0,0.6);--shadow-xl:0 20px 30px rgba(0,0,0,0.7)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;transition:background .3s ease,color .3s ease}.container{max-width:1400px;margin:0 auto;padding:0 100px}nav{background:var(--bg-card);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow)}.header-content{display:flex;justify-content:space-between;align-items:center;padding:.75rem 0}.logo-text{font-size:1.25rem;font-weight:600;color:var(--accent-primary);margin-bottom:0}.logo-text a{color:inherit;text-decoration:none}.tagline{font-size:.75rem;color:var(--text-secondary);margin-top:.125rem}.theme-toggle{background:var(--bg-secondary);border:1px solid var(--border-color);padding:.4rem .8rem;border-radius:6px;cursor:pointer;font-size:1.1rem;transition:all .2s ease}.theme-toggle:hover{transform:scale(1.05);box-shadow:var(--shadow)}main{padding:2rem 0}.main-grid{display:grid;grid-template-columns:1fr 320px;grid-gap:1.5rem;gap:1.5rem;margin-bottom:2rem}@media (max-width:968px){.main-grid{grid-template-columns:1fr}}.input-section{background:var(--bg-card);border-radius:8px;padding:1.5rem;border:1px solid var(--border-color);margin-bottom:2rem}.textarea-wrapper textarea{width:100%;min-height:450px;padding:1.5rem;border:2px solid var(--border-color);border-radius:8px;font-size:1.05rem;font-family:inherit;background:var(--bg-secondary);color:var(--text-primary);resize:vertical;transition:all .2s ease;line-height:1.8}.textarea-wrapper textarea:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px rgba(52,152,219,.1)}.button-row{display:flex;gap:.5rem;margin-bottom:1rem;flex-wrap:wrap}button{background:var(--bg-secondary);color:var(--text-primary);border:1.5px solid var(--border-color);padding:.625rem 1.25rem;border-radius:8px;cursor:pointer;font-size:.875rem;font-weight:600;transition:all .2s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow)}button:hover{background:var(--accent-primary);color:white;border-color:var(--accent-primary);box-shadow:var(--shadow-md);transform:translateY(-1px)}button:active{transform:translateY(0) scale(.98)}button:disabled{cursor:not-allowed;opacity:.5;transform:none}button:disabled:hover{background:var(--bg-secondary);color:var(--text-primary);border-color:var(--border-color)}.stats-section{display:flex;flex-direction:column;gap:.75rem}.stat-card{background:var(--bg-card);border:1.5px solid var(--border-color);border-radius:8px;padding:.875rem 1.125rem;display:flex;justify-content:space-between;align-items:center;transition:all .2s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow)}.stat-card:hover{border-color:var(--accent-primary);transform:translateX(4px);box-shadow:var(--shadow-md);background:var(--accent-light)}.stat-label{font-size:.875rem;color:var(--text-secondary);font-weight:500}.stat-value{font-size:1.5rem;font-weight:700;color:var(--text-primary);line-height:1}.big-counter{background:linear-gradient(135deg,var(--accent-light) 0,#dbeafe 100%);border:2px solid var(--accent-primary);border-radius:12px;padding:1.5rem 2rem;margin-bottom:1.5rem;text-align:left;box-shadow:var(--shadow-md);transition:all .3s ease}.big-counter:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}[data-theme=dark] .big-counter{background:linear-gradient(135deg,var(--accent-light) 0,#1e40af 100%);border-color:var(--accent-primary)}.big-counter-text{font-size:1.75rem;font-weight:700;color:var(--text-primary);margin:0}.big-counter-text .count{color:var(--accent-primary)}.stats-header{font-size:.875rem;font-weight:600;color:var(--text-primary);margin-bottom:.75rem;padding-bottom:.5rem;border-bottom:2px solid var(--border-color);text-transform:uppercase;letter-spacing:.5px}.extra-panels{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));grid-gap:1.5rem;gap:1.5rem;margin-top:2.5rem}.panel{background:var(--bg-card);border-radius:8px;padding:1.5rem;border:1px solid var(--border-color)}.panel h2{font-size:1.125rem;margin-bottom:1.25rem;color:var(--text-primary);font-weight:600}.word-list{list-style:none}.word-item{display:flex;justify-content:space-between;padding:.5rem 0;border-bottom:1px solid var(--border-color)}.word-item:last-child{border-bottom:none}.word-text{color:var(--text-primary)}.word-count{color:var(--accent-primary);font-weight:600}.keyword-input{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:8px;font-size:1rem;background:var(--bg-primary);color:var(--text-primary);margin-bottom:1rem}.keyword-input:focus{outline:none;border-color:var(--accent-primary)}.density-result{background:var(--bg-secondary);padding:1rem;border-radius:8px;margin-top:.5rem}.density-item{display:flex;justify-content:space-between;margin-bottom:.5rem}.density-item:last-child{margin-bottom:0}.settings-list{list-style:none}.setting-item{display:flex;justify-content:space-between;align-items:center;padding:1rem 0;border-bottom:1px solid var(--border-color)}.setting-item:last-child{border-bottom:none}.toggle-switch{position:relative;width:50px;height:26px}.toggle-switch input{opacity:0;width:0;height:0}.slider{cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:var(--border-color);border-radius:34px}.slider,.slider:before{position:absolute;transition:.3s}.slider:before{content:"";height:18px;width:18px;left:4px;bottom:4px;background-color:white;border-radius:50%}input:checked+.slider{background-color:var(--accent-primary)}input:checked+.slider:before{transform:translateX(24px)}.related-tools{margin-top:3rem;padding:2rem 0;border-top:1px solid var(--border-color)}.related-tools h2{text-align:center;font-size:1.5rem;margin-bottom:1.5rem;color:var(--text-primary)}.tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));grid-gap:1rem;gap:1rem}.tool-link{background:var(--bg-card);border:1px solid var(--border-color);border-radius:8px;padding:1.25rem;text-decoration:none;transition:all .2s ease;display:block}.tool-link:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--accent-primary)}.tool-icon{font-size:2rem;margin-bottom:.5rem}.tool-name{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:.25rem}.tool-desc{font-size:.875rem;color:var(--text-secondary)}.progress-bar{width:100%;height:6px;background:var(--border-color);border-radius:3px;overflow:hidden;margin-top:.5rem}.progress-fill{height:100%;background:var(--accent-primary);transition:width .3s ease}footer{background:var(--bg-card);border-top:1px solid var(--border-color);margin-top:4rem;padding:2rem 0;text-align:center}.privacy-note{color:var(--text-secondary);margin-bottom:1rem;font-size:.875rem}.footer-links{display:flex;gap:1.5rem;justify-content:center;flex-wrap:wrap}.footer-links a{color:var(--accent-primary);text-decoration:none;font-size:.875rem;transition:color .2s ease}.footer-links a:hover{color:var(--accent-hover)}.toast{position:fixed;bottom:20px;right:20px;background:var(--success);color:white;padding:1rem 1.5rem;border-radius:8px;box-shadow:var(--shadow-lg);opacity:0;transform:translateY(100px);transition:all .3s ease;z-index:1000}.toast.show{opacity:1;transform:translateY(0)}.empty-state{color:var(--text-secondary);font-style:italic;text-align:center;padding:1rem 0}@media (max-width:968px){.main-grid{grid-template-columns:1fr;gap:2rem}.stats-section{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:.75rem;gap:.75rem}.big-counter-text{font-size:1.5rem}.textarea-wrapper textarea{min-height:350px}}@media (max-width:640px){.container{padding:0 20px}h1{font-size:1.5rem!important;line-height:1.3}h2{font-size:1.25rem!important}h3{font-size:1.1rem!important}.header-content{padding:.5rem 0}.logo-text{font-size:1.1rem}.tagline{font-size:.7rem}.theme-toggle{padding:.35rem .7rem;font-size:1rem}main{padding:1rem 0}.big-counter{padding:1rem;margin-bottom:1rem}.big-counter-text{font-size:1.25rem}.input-section{padding:1rem;margin-bottom:1.5rem}.button-row{gap:.4rem;margin-bottom:.75rem}button{padding:.6rem .85rem;font-size:.8rem;flex:1 1 auto}.textarea-wrapper textarea{min-height:300px;padding:1rem;font-size:1rem}.stats-header{font-size:.813rem;margin-bottom:.5rem}.stats-section{grid-template-columns:1fr}.stat-card{padding:.65rem .85rem}.stat-label{font-size:.813rem}.stat-value{font-size:1.25rem}.panel{padding:1rem}.panel h2{font-size:1rem;margin-bottom:1rem}.extra-panels{grid-template-columns:1fr;gap:1rem;margin-top:1.5rem}.related-tools{margin-top:2rem;padding:1.5rem 0}.related-tools h2{font-size:1.25rem;margin-bottom:1rem}.tools-grid{grid-template-columns:1fr;gap:.75rem}.tool-link{padding:1rem}.tool-icon{font-size:1.5rem}footer{margin-top:2rem;padding:1.5rem 0}.footer-links{flex-direction:column;gap:.75rem}}@media (max-width:375px){h1{font-size:1.35rem!important}h2{font-size:1.15rem!important}.logo-text{font-size:1rem}.big-counter-text{font-size:1.1rem}button{padding:.5rem .7rem;font-size:.75rem}.textarea-wrapper textarea{min-height:250px;font-size:.95rem}.stat-value{font-size:1.1rem}}