.character-counter-container,.character-counter-container *,.character-counter-container *::before,.character-counter-container *::after{box-sizing:border-box}.character-counter-container{--bg-primary:#f5f5f0;--bg-secondary:#fff;--bg-section:#fff;--border-color:#333;--text-primary:#222;--text-secondary:#555;--text-light:#666;--color-accent:#3498db;--color-success:#27ae60;--color-warning:#f39c12;--color-danger:#e74c3c;--color-purple:#9b59b6;--color-teal:#1abc9c;--shadow-sm:2px 2px 0 rgba(0,0,0,0.1);--shadow-md:4px 4px 0 rgba(0,0,0,0.15);--shadow-lg:8px 8px 0 rgba(0,0,0,0.15);--radius-container:8px;--radius-section:6px;--radius-button:4px;--radius-input:4px;--input-focus-bg:#fffacd;--title-color:#2c3e50;--title-shadow:2px 2px 0 rgba(255,255,255,0.5);--btn-hover-overlay:rgba(0,0,0,0.1);--copy-btn-bg:#fff;--copy-btn-hover-bg:#f0f0f0}.character-counter-container.dark{--bg-primary:#1a1a1a;--bg-secondary:#2d2d2d;--bg-section:#2d2d2d;--border-color:#e0e0e0;--text-primary:#e8e8e8;--text-secondary:#b0b0b0;--text-light:#909090;--color-accent:#5dade2;--color-success:#52c77a;--color-warning:#f5b041;--color-danger:#ec7063;--color-purple:#af7ac5;--color-teal:#48d1cc;--shadow-sm:2px 2px 0 rgba(255,255,255,0.08);--shadow-md:4px 4px 0 rgba(255,255,255,0.12);--shadow-lg:8px 8px 0 rgba(255,255,255,0.12);--input-focus-bg:#3a3a3a;--title-color:#7fb3d5;--title-shadow:2px 2px 0 rgba(0,0,0,0.5);--btn-hover-overlay:rgba(255,255,255,0.1);--copy-btn-bg:#3a3a3a;--copy-btn-hover-bg:#4a4a4a}@media (prefers-color-scheme:dark){.character-counter-container:not(.dark):not(.light){--bg-primary:#1a1a1a;--bg-secondary:#2d2d2d;--bg-section:#2d2d2d;--border-color:#e0e0e0;--text-primary:#e8e8e8;--text-secondary:#b0b0b0;--text-light:#909090;--color-accent:#5dade2;--color-success:#52c77a;--color-warning:#f5b041;--color-danger:#ec7063;--color-purple:#af7ac5;--color-teal:#48d1cc;--shadow-sm:2px 2px 0 rgba(255,255,255,0.08);--shadow-md:4px 4px 0 rgba(255,255,255,0.12);--shadow-lg:8px 8px 0 rgba(255,255,255,0.12);--input-focus-bg:#3a3a3a;--title-color:#7fb3d5;--title-shadow:2px 2px 0 rgba(0,0,0,0.5);--btn-hover-overlay:rgba(255,255,255,0.1);--copy-btn-bg:#3a3a3a;--copy-btn-hover-bg:#4a4a4a}}.dark-mode-toggle{position:absolute;top:10px;right:10px;padding:6px 10px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-button);cursor:pointer;transition:all 0.2s;box-shadow:var(--shadow-sm);font-size:17.5px;font-weight:600;color:var(--text-primary);z-index:10}.dark-mode-toggle:hover{transform:translate(.5px,.5px);box-shadow:1.5px 1.5px 0 rgba(0,0,0,.15)}.dark-mode-toggle:active{transform:translate(2px,2px);box-shadow:none}.character-counter-container{position:relative;max-width:1000px;width:100%;margin:8px auto;padding:8px;background:var(--bg-primary);border:2px solid var(--border-color);border-radius:var(--radius-container);font-family:'Noto Sans KR','Malgun Gothic',-apple-system,BlinkMacSystemFont,sans-serif;color:var(--text-primary);box-shadow:var(--shadow-lg);line-height:1.5}.header{text-align:center;padding:8px 0;border-bottom:3px double var(--border-color);margin-bottom:8px}.header h2{font-size:30px;font-weight:700;color:var(--title-color);text-shadow:var(--title-shadow);margin:0 0 4px 0;letter-spacing:-.5px}.subtitle{font-size:16px;color:var(--text-secondary);margin:0}.main-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:8px}.input-section,.result-section{background:var(--bg-section);border:1px solid var(--border-color);border-radius:var(--radius-section);padding:8px;box-shadow:var(--shadow-md)}.section-header{display:flex;align-items:center;gap:6px;margin-bottom:8px;padding-bottom:6px;border-bottom:2px solid var(--border-color)}.section-header svg{color:var(--color-accent);flex-shrink:0}.section-title{font-size:18px;font-weight:600;color:var(--text-primary);margin:0}#textInput{width:100%;min-height:250px;padding:7px;border:1px solid var(--border-color);border-radius:var(--radius-input);font-size:16px;font-family:'Noto Sans KR','Malgun Gothic',-apple-system,BlinkMacSystemFont,sans-serif;resize:vertical;box-shadow:inset 1px 1px 2px rgba(0,0,0,.1);transition:all 0.2s;background:var(--bg-secondary);color:var(--text-primary);line-height:1.6}#textInput:focus{outline:none;background:var(--input-focus-bg);border-color:var(--color-accent);box-shadow:0 0 0 2px rgba(52,152,219,.2)}#textInput::placeholder{color:var(--text-light)}.input-limit{margin-top:6px;font-size:15px;color:var(--text-secondary);text-align:right;font-family:'Courier New',monospace}.button-group{display:flex;gap:6px;margin-top:8px}.btn{padding:7px 12px;border-radius:var(--radius-button);font-size:16px;font-weight:600;cursor:pointer;transition:all 0.2s;display:inline-flex;align-items:center;gap:4px;font-family:'Noto Sans KR',-apple-system,BlinkMacSystemFont,sans-serif;white-space:nowrap}.btn svg{flex-shrink:0}.btn-primary{background:var(--color-accent);color:#fff;border:1.5px solid var(--border-color);box-shadow:var(--shadow-md)}.btn-primary:hover{transform:translate(1px,1px);box-shadow:3px 3px 0 rgba(0,0,0,.15)}.btn-primary:active{transform:translate(4px,4px);box-shadow:none}.btn-success{background:var(--color-success);color:#fff;border:1px solid var(--border-color);box-shadow:var(--shadow-md)}.btn-success:hover{transform:translate(1px,1px);box-shadow:3px 3px 0 rgba(0,0,0,.15)}.btn-success:active{transform:translate(4px,4px);box-shadow:none}.btn-warning{background:var(--color-warning);color:#fff;border:1px solid var(--border-color);box-shadow:var(--shadow-md)}.btn-warning:hover{transform:translate(1px,1px);box-shadow:3px 3px 0 rgba(0,0,0,.15)}.btn-warning:active{transform:translate(4px,4px);box-shadow:none}.btn-full-width{width:100%;justify-content:center}.result-item{display:flex;justify-content:space-between;align-items:center;padding:6px 0;border-bottom:1px solid var(--border-color)}.result-item:last-child{border-bottom:none}.result-label{color:var(--text-secondary);font-size:15px}.result-value{font-weight:700;color:var(--color-accent);font-size:18px;font-family:'Courier New',monospace}.additional-features{background:var(--bg-section);border:1px solid var(--border-color);border-radius:var(--radius-section);padding:8px;box-shadow:var(--shadow-md);margin-bottom:8px}.additional-features .section-title{font-size:18px;padding-bottom:6px;margin-bottom:8px;border-bottom:2px solid var(--border-color)}.feature-tabs{display:flex;gap:6px;margin-bottom:8px;flex-wrap:wrap}.tab-btn{padding:6px 12px;background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color);border-radius:var(--radius-button);font-size:15px;font-weight:600;cursor:pointer;transition:all 0.2s;box-shadow:var(--shadow-sm);font-family:'Noto Sans KR',-apple-system,BlinkMacSystemFont,sans-serif}.tab-btn:hover{transform:translate(.5px,.5px);box-shadow:1.5px 1.5px 0 rgba(0,0,0,.1)}.tab-btn:active{transform:translate(2px,2px);box-shadow:none}.tab-btn.active{background:var(--color-accent);color:#fff}.tab-pane{display:none}.tab-pane.active{display:block}.feature-group{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-section);padding:8px;margin-bottom:8px;box-shadow:var(--shadow-sm)}.feature-group:last-child{margin-bottom:0}.feature-header{margin-bottom:8px}.feature-title{font-size:16px;font-weight:600;color:var(--text-primary);margin-bottom:2px}.feature-subtitle{font-size:14px;color:var(--text-secondary)}.keyword-cloud{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;padding:8px 0}.keyword-item{display:inline-flex;align-items:center;background:var(--bg-primary);padding:4px 10px;border-radius:12px;border:1px solid var(--border-color);transition:all 0.2s;box-shadow:var(--shadow-sm)}.keyword-item:hover{transform:translate(.5px,.5px);box-shadow:1.5px 1.5px 0 rgba(0,0,0,.1)}.keyword-text{font-weight:600;color:var(--text-primary);font-size:15px}.keyword-count{margin-left:4px;background:var(--color-accent);color:#fff;font-size:13px;font-weight:700;border-radius:8px;padding:2px 5px;min-width:18px;text-align:center}.keyword-primary{background:var(--color-accent);border-color:var(--color-accent)}.keyword-primary .keyword-text{color:#fff}.keyword-primary .keyword-count{background:rgba(255,255,255,.3)}.keyword-secondary{background:var(--color-success);border-color:var(--color-success)}.keyword-secondary .keyword-text{color:#fff}.keyword-secondary .keyword-count{background:rgba(255,255,255,.3)}.reading-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}.reading-stat{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-section);padding:8px;text-align:center;box-shadow:var(--shadow-sm)}.reading-stat-label{font-size:14px;color:var(--text-secondary);margin-bottom:4px}.reading-stat-value{font-size:18px;font-weight:700;color:var(--color-accent)}.reading-guide{display:flex;flex-direction:column;gap:6px}.reading-guide-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-secondary)}.reading-guide-icon{width:12px;height:12px;border-radius:50%;border:1px solid var(--border-color);flex-shrink:0}.reading-guide-icon.easy{background:var(--color-success)}.reading-guide-icon.medium{background:var(--color-warning)}.reading-guide-icon.hard{background:var(--color-danger)}.seo-status-container{display:flex;flex-direction:column;gap:12px}.seo-gauge{text-align:center}.seo-meter{width:200px;height:100px;position:relative;margin:0 auto 10px;overflow:hidden}.seo-meter:before{content:"";position:absolute;width:200px;height:200px;border:3px solid var(--border-color);border-radius:50%;top:0;left:0;clip-path:polygon(0 50%,100% 50%,100% 100%,0 100%);box-shadow:var(--shadow-sm)}.seo-meter:after{content:"";position:absolute;width:160px;height:160px;background:var(--bg-primary);border-radius:50%;top:20px;left:20px;z-index:1}.seo-needle{position:absolute;width:3px;height:90px;background:var(--color-danger);bottom:0;left:98px;transform-origin:bottom center;transition:transform 0.5s ease;z-index:3;border-radius:2px;box-shadow:0 0 4px rgba(0,0,0,.3)}.seo-scale{display:flex;justify-content:space-between;width:180px;margin:0 auto;position:relative;z-index:4;padding-top:8px}.seo-marker{position:relative;text-align:center;width:40px}.seo-marker:before{content:"";position:absolute;width:2px;height:8px;background:var(--border-color);top:-15px;left:50%;transform:translateX(-50%)}.seo-marker span{font-size:13px;color:var(--text-secondary);font-weight:600}.seo-value{font-size:18px;font-weight:700;color:var(--color-accent);margin-top:8px}.seo-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;background:var(--bg-primary);padding:8px;border-radius:var(--radius-section);border:1px solid var(--border-color)}.seo-stat{display:flex;flex-direction:column;align-items:center;gap:4px}.seo-stat-label{font-size:13px;color:var(--text-secondary);text-align:center}.seo-stat-value{font-size:17px;font-weight:700;color:var(--text-primary);font-family:'Courier New',monospace}.seo-tips-list{padding-left:18px;margin:0}.seo-tip{font-size:15px;color:var(--text-secondary);margin-bottom:6px;line-height:1.5}.seo-tip:last-child{margin-bottom:0}.keyword-density-chart{display:flex;flex-direction:column;gap:8px}.density-bar-container{display:flex;align-items:center;gap:10px;padding:6px 8px;border-radius:var(--radius-section);transition:background 0.2s}.density-bar-container:hover{background:var(--bg-primary)}.density-keyword{min-width:80px;max-width:100px;font-weight:600;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:15px}.density-bar-wrapper{flex-grow:1;height:18px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:9px;overflow:hidden;position:relative}.density-bar{height:100%;border-radius:9px;transition:width 0.5s ease}.density-bar-good{background:var(--color-success)}.density-bar-warning{background:var(--color-warning)}.density-bar-optimal{background:var(--color-accent)}.density-value{min-width:70px;text-align:right;font-size:14px;color:var(--text-secondary);font-weight:600;font-family:'Courier New',monospace}.density-marker{position:absolute;top:0;height:100%;width:2px;background:var(--border-color);z-index:2}.density-marker-1{left:10%}.density-marker-3{left:30%}.density-markers-label{display:flex;justify-content:space-between;font-size:13px;color:var(--text-light);padding:0 5px;margin-top:2px}.empty-message{color:var(--text-light);font-style:italic;font-size:15px;text-align:center;padding:20px 0}.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%) translateY(100px);background:var(--color-success);color:#fff;padding:10px 20px;border-radius:var(--radius-button);border:2px solid var(--border-color);box-shadow:var(--shadow-lg);font-size:16px;font-weight:600;opacity:0;transition:all 0.3s ease;z-index:1000;max-width:90%}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}.toast.warning{background:var(--color-warning)}.toast.error{background:var(--color-danger)}@media screen and (max-width:768px){.character-counter-container{margin:6px 5px;width:calc(100% - 10px);padding:7px}.main-grid{grid-template-columns:1fr;gap:6px}.header h2{font-size:26px}.subtitle{font-size:15px}#textInput{min-height:200px}.button-group{flex-wrap:wrap}.btn{flex:1;min-width:0;justify-content:center}.reading-stats{grid-template-columns:1fr}.seo-stats{grid-template-columns:1fr}.feature-tabs{gap:4px}.tab-btn{flex:1;font-size:14px;padding:6px 8px}}@media screen and (max-width:480px){.character-counter-container{padding:6px;border-width:1px}.header h2{font-size:22px}.section-title{font-size:16px}.result-label,.result-value{font-size:14px}.dark-mode-toggle{padding:4px 8px;font-size:16px}}