:root{--primary-color: #15C39A;--primary-hover: #0FA885;--secondary-color: #2C3E50;--text-color: #666666;--light-gray: #F9F9F9;--medium-gray: #E8E8E8;--dark-gray: #333333;--white: #FFFFFF;--error-color: #E74C3C;--primary-rgb: 21, 195, 154;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 2rem;--spacing-xl: 4rem;--border-radius: 8px;--box-shadow: 0 2px 8px rgba(0, 0, 0, .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;color:var(--text-color)}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;margin-bottom:var(--spacing-md);color:var(--dark-gray)}h1{font-size:clamp(2rem,5vw,2rem)}h2{font-size:clamp(1.5rem,4vw,1.5rem);text-align:center}p{font-size:1rem}.site-header{background:var(--white);box-shadow:var(--box-shadow);position:fixed;width:100%;top:0;z-index:1000}.main-nav{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-md) 0}.logo{font-size:1.8rem;font-weight:700;color:var(--secondary-color);text-decoration:none}.logo span{color:var(--primary-color)}.logo-image{height:40px;width:auto;display:block}.nav-links{display:flex;align-items:center;gap:var(--spacing-lg)}.tools-nav{display:flex;gap:var(--spacing-md);padding-right:var(--spacing-lg);border-right:1px solid var(--light-gray)}.menu-nav{display:flex;align-items:center;gap:var(--spacing-md);list-style:none;margin:0;padding:0}.tool-link{display:flex;align-items:center;gap:var(--spacing-xs);padding:6px 12px;border-radius:var(--border-radius);color:var(--text-color);text-decoration:none;font-size:1rem;transition:all .2s ease}.tool-link:hover{background:var(--light-gray)}.tool-link.active{background:var(--primary-color);color:var(--white)}.tool-link.active svg{stroke:var(--white)}.tool-link svg{stroke:var(--text-color);transition:stroke .2s ease}.language-switch{margin-left:var(--spacing-md)}.language-select-wrapper{position:relative}.header-select.custom-select{background-color:transparent;border:1px solid rgba(0,0,0,.1);padding:10px 36px 10px 12px;font-size:1rem;min-width:120px;color:var(--secondary-color);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%232C3E50' 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")}.header-select.custom-select:hover{border-color:var(--primary-color);background-color:#15c39a0d}.header-select.custom-select:focus{border-color:var(--primary-color);background-color:var(--white);box-shadow:0 0 0 3px #15c39a1a}.header-select.custom-select option{background:var(--white);color:var(--secondary-color);font-size:1rem;padding:12px}@media (max-width: 768px){.nav-links{padding:var(--spacing-lg) 0}.nav-links ul{flex-direction:column;gap:var(--spacing-lg)}.nav-links a{font-size:1.2rem;display:block;padding:var(--spacing-sm) 0}.language-switch{margin:var(--spacing-md) 0 0;width:100%}.header-select.custom-select{width:100%;padding:12px 36px 12px 16px;font-size:1.1rem;background-color:var(--white)}.header-select.custom-select option{font-size:1.1rem;padding:16px}}.site-footer{background:var(--secondary-color);color:var(--white);padding:var(--spacing-xl) 0 var(--spacing-md)}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--spacing-xl);margin-bottom:var(--spacing-xl)}.footer-section h3{color:var(--white);margin-bottom:var(--spacing-md)}.footer-section ul{list-style:none}.footer-section a{color:var(--medium-gray);text-decoration:none;transition:color .3s ease}.footer-section a:hover{color:var(--white)}.footer-bottom{text-align:center;padding-top:var(--spacing-md);border-top:1px solid rgba(255,255,255,.1)}.hidden{display:none}.subtitle{font-size:1rem;color:var(--white);margin-bottom:var(--spacing-lg);opacity:.9}.sentence{position:relative;padding:var(--spacing-md);background:var(--white);border-radius:var(--border-radius);margin-bottom:var(--spacing-sm);transition:all .3s ease;color:var(--text-color);font-size:1rem;line-height:1.6}#rewrittenText{background:var(--white);border-radius:var(--border-radius);padding:var(--spacing-md);margin-top:var(--spacing-md);color:var(--text-color)}#rewrittenText p{margin:0 0 var(--spacing-sm) 0;color:var(--text-color)}#rewrittenText p:last-child{margin-bottom:0}.mobile-menu-toggle{display:block;background:none;border:none;cursor:pointer;padding:var(--spacing-sm)}.mobile-menu-toggle span{display:block;width:25px;height:2px;background:var(--secondary-color);margin:5px 0;transition:.3s}.nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--white);padding:var(--spacing-md);box-shadow:var(--box-shadow)}.nav-links.active{display:block}.nav-links ul{flex-direction:column;gap:var(--spacing-md)}.options-group{flex-direction:column}@media screen and (min-width: 768px){.mobile-menu-toggle{display:none}.nav-links{display:block;position:static;padding:0;box-shadow:none}.nav-links ul,.options-group{flex-direction:row}}@media screen and (min-width: 1280px){.container{max-width:1200px}h1{font-size:2rem}h2{font-size:1.5rem}}html{font-size:clamp(16px,1vw + 14px,18px)}@media print{.site-header,.site-footer,.convert-btn,.options-group{display:none}body{font-size:12pt}.container{width:100%;max-width:none;padding:0}}.ad-banner{max-width:1200px;width:100%;height:auto;margin:2rem auto;text-align:center}.ad-banner img{width:auto;max-width:100%}.ad-banner-center{display:flex;justify-content:center;align-items:center;max-width:1200px;width:100%;height:auto;margin:2rem auto}.ad-banner-center img{width:auto;max-width:100%}