:root{--primary:#e74c3c;--primary-dark:#c0392b;--secondary:#3498db;--secondary-dark:#2980b9;--success:#27ae60;--success-dark:#1e8449;--warning:#f39c12;--warning-dark:#e67e22;--info:#9b59b6;--info-dark:#8e44ad;--dark:#2c3e50;--gray:#5a6c6d;--gray-light:#95a5a6;--gray-lighter:#bdc3c7;--light:#ecf0f1;--lighter:#f8f9fa;--white:#ffffff;--border:#dee2e6;--shadow-sm:0 2px 4px rgba(0,0,0,0.05);--shadow-md:0 4px 12px rgba(0,0,0,0.08);--shadow-lg:0 8px 24px rgba(0,0,0,0.1);--shadow-hover:0 12px 32px rgba(0,0,0,0.15);--radius:8px;--radius-lg:12px;--transition:0.2s ease;--max-width:1200px;}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;color:var(--dark);background:var(--lighter);line-height:1.6;min-height:100vh;overflow-x:hidden;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);}a{color:inherit;text-decoration:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation;}button{font-family:inherit;cursor:pointer;border:none;background:none;touch-action:manipulation;}img{max-width:100%;height:auto;display:block;}.container{max-width:var(--max-width);margin:0 auto;padding:0 1rem;}.navbar{background:var(--white);border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:100;}.navbar .container{display:flex;align-items:center;justify-content:space-between;height:64px;}.logo{display:flex;align-items:center;gap:0.5rem;font-size:1.25rem;font-weight:700;color:var(--dark);}.logo-icon{font-size:1.5rem;}.logo-text{color:var(--primary);}.nav-menu{display:flex;align-items:center;gap:2rem;list-style:none;}.nav-menu a{color:var(--gray);font-weight:500;font-size:0.95rem;padding:0.25rem 0;position:relative;transition:color var(--transition);}.nav-menu a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--primary);transition:width var(--transition);}.nav-menu a:hover{color:var(--primary);}.nav-menu a:hover::after{width:100%;}.nav-toggle{display:none;width:44px;height:44px;padding:10px;flex-direction:column;justify-content:center;gap:5px;border-radius:var(--radius);transition:background var(--transition);cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation;}.nav-toggle:hover{background:var(--light);}.nav-toggle span{display:block;width:100%;height:2px;background:var(--dark);border-radius:1px;transition:all var(--transition);}.promo-wrap{background:var(--white);padding:0.5rem;text-align:center;}.promo-wrap:empty{display:none;}.promo-header{border-bottom:1px solid var(--border);min-height:40px;}.promo-sidebar-top,.promo-sidebar-bottom{margin:0.5rem;}.promo-footer{border-top:1px solid var(--border);margin-top:auto;}.promo-content-top,.promo-content-bottom{margin:1rem 0;}.promo-slot{display:inline-block;width:100%;}.promo-item{display:inline-block;width:100%;}.promo-item img{max-width:100%;height:auto;display:block;margin:0 auto;aspect-ratio:auto;}.promo-placeholder{padding:1.5rem 1rem;background:repeating-linear-gradient( 135deg,#f8f9fa,#f8f9fa 10px,#ffffff 10px,#ffffff 20px );border:2px dashed var(--gray-lighter);border-radius:var(--radius);color:var(--gray-light);font-size:0.8rem;display:flex;flex-direction:column;align-items:center;gap:0.25rem;min-height:50px;justify-content:center;}.promo-placeholder .promo-label{font-size:0.7rem;text-transform:uppercase;letter-spacing:1px;color:var(--gray-lighter);}.promo-placeholder .promo-name{font-size:0.85rem;font-weight:500;color:var(--gray);font-family:'Consolas',monospace;background:var(--light);padding:0.15rem 0.5rem;border-radius:4px;}.layout-wrapper{display:flex;gap:1.5rem;max-width:var(--max-width);margin:0 auto;padding:1.5rem;align-items:flex-start;}.sidebar{width:260px;flex-shrink:0;position:sticky;top:1rem;align-self:flex-start;}.main-content{flex:1;min-width:0;}.main-content > .promo-wrap:first-child{margin-top:0;}.hero{padding:3rem 0;text-align:center;background:linear-gradient(135deg,var(--white) 0%,#fef5f5 50%,var(--white) 100%);}.hero-title{font-size:2.5rem;font-weight:800;color:var(--dark);margin-bottom:1rem;letter-spacing:-0.5px;}.hero-subtitle{font-size:1.15rem;color:var(--gray);max-width:600px;margin:0 auto 2rem;line-height:1.7;}.hero-features{display:flex;justify-content:center;gap:2rem;flex-wrap:wrap;}.hero-features .feature{display:flex;align-items:center;gap:0.5rem;padding:0.5rem 1rem;background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow-sm);font-weight:500;color:var(--dark);}.feature-icon{font-size:1.25rem;}.tools-section{padding:3rem 0 4rem;}.category-section{margin-bottom:2.5rem;}.category-section:last-child{margin-bottom:0;}.category-title{font-size:1.5rem;font-weight:700;color:var(--dark);margin-bottom:1.25rem;padding-bottom:0.5rem;border-bottom:2px solid var(--light);position:relative;}.category-title::after{content:'';position:absolute;bottom:-2px;left:0;width:60px;height:2px;background:var(--primary);}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:1rem;}.tool-card{display:flex;flex-direction:column;align-items:center;padding:1.25rem 0.75rem;background:var(--white);border-radius:var(--radius-lg);border:1px solid var(--border);transition:all var(--transition);position:relative;overflow:hidden;text-align:center;content-visibility:auto;contain-intrinsic-size:120px;}.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--primary);will-change:transform;}.tool-card .tool-icon{width:40px;height:40px;margin-bottom:0.75rem;display:flex;align-items:center;justify-content:center;}.tool-card .tool-icon svg{width:28px;height:28px;}.tool-card .tool-title{font-size:0.9rem;font-weight:600;color:var(--dark);margin-bottom:0.25rem;}.tool-card .tool-description{font-size:0.75rem;color:var(--gray);line-height:1.4;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}.tool-card.featured{border-color:var(--primary);background:linear-gradient(135deg,var(--white) 0%,#fef5f5 100%);}.featured-badge{position:absolute;top:0.5rem;right:0.5rem;background:var(--primary-dark);color:var(--white);font-size:0.7rem;padding:0.15rem 0.5rem;border-radius:var(--radius);font-weight:600;}.tools-grid.small{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));}.tool-card.small{padding:0.75rem;}.tool-card.small .tool-icon{width:32px;height:32px;margin-bottom:0.5rem;}.tool-card.small .tool-icon svg{width:22px;height:22px;}.tool-card.small .tool-title{font-size:0.8rem;}.tool-page{padding:2rem 0 4rem;}.tool-header{text-align:center;margin-bottom:2rem;}.tool-icon-large{width:56px;height:56px;margin:0 auto 1rem;display:flex;align-items:center;justify-content:center;}.tool-icon-large svg{width:40px;height:40px;}.tool-title-large{font-size:1.75rem;font-weight:700;color:var(--dark);margin-bottom:0.5rem;}.tool-header .tool-description{color:var(--gray);font-size:1rem;}.upload-section{margin-bottom:1.5rem;}.upload-area{border:2px dashed var(--gray-lighter);border-radius:var(--radius-lg);padding:3rem 2rem;text-align:center;cursor:pointer;transition:all var(--transition);background:var(--white);}.upload-area:hover{border-color:var(--primary);background:#fef5f5;}.upload-area.dragover{border-color:var(--primary);background:#fef5f5;transform:scale(1.01);}.upload-icon{font-size:3rem;margin-bottom:1rem;}.upload-text{font-size:1.1rem;color:var(--dark);margin-bottom:0.5rem;}.uplopromo-link{color:var(--primary);font-weight:600;text-decoration:underline;}.upload-hint{font-size:0.85rem;color:var(--gray-light);}.file-input{display:none;}.file-list{margin-top:1rem;}.file-item{display:flex;align-items:center;gap:0.75rem;padding:0.75rem 1rem;background:var(--white);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:0.5rem;}.file-item .file-name{flex:1;font-size:0.9rem;color:var(--dark);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}.file-item .file-size{font-size:0.8rem;color:var(--gray);}.file-item .file-remove{color:var(--primary);font-size:1.25rem;padding:0.25rem;line-height:1;}.tool-options{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.5rem;margin-bottom:1.5rem;}.option-group{margin-bottom:1.5rem;}.option-group:last-child{margin-bottom:0;}.option-group h4{font-size:1rem;font-weight:600;color:var(--dark);margin-bottom:1rem;padding-bottom:0.5rem;border-bottom:1px solid var(--light);}.option-item{margin-bottom:1rem;}.option-item:last-child{margin-bottom:0;}.option-item label{display:block;font-weight:500;color:var(--dark);margin-bottom:0.5rem;font-size:0.9rem;}.radio-label{display:flex !important;align-items:center;gap:0.5rem;cursor:pointer;font-weight:normal !important;margin-bottom:0.5rem;}.radio-label input[type="radio"],.radio-label input[type="checkbox"]{width:18px;height:18px;accent-color:var(--primary);cursor:pointer;}.radio-group{display:flex;flex-direction:column;gap:0.5rem;}.form-input{width:100%;padding:0.75rem 1rem;border:1px solid var(--border);border-radius:var(--radius);font-size:0.95rem;transition:border-color var(--transition),box-shadow var(--transition);}.form-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(231,76,60,0.1);}.form-input::placeholder{color:var(--gray-light);}.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.75rem 1.5rem;font-size:0.95rem;font-weight:600;border-radius:var(--radius);transition:all var(--transition);cursor:pointer;border:none;}.btn-primary{background:var(--primary);color:var(--white);box-shadow:0 4px 12px rgba(231,76,60,0.3);}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 6px 16px rgba(231,76,60,0.4);}.btn-primary:disabled{background:var(--gray-light);box-shadow:none;cursor:not-allowed;transform:none;}.btn-success{background:var(--success);color:var(--white);box-shadow:0 4px 12px rgba(39,174,96,0.3);}.btn-success:hover{background:var(--success-dark);transform:translateY(-1px);box-shadow:0 6px 16px rgba(39,174,96,0.4);}.btn-secondary{background:var(--gray-light);color:var(--white);}.btn-secondary:hover{background:var(--gray);}.btn-block{width:100%;}.progress-section{margin:1.5rem 0;text-align:center;}.progress-bar{width:100%;height:8px;background:var(--light);border-radius:4px;overflow:hidden;margin-bottom:1rem;}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--warning));border-radius:4px;transition:width 0.3s ease;width:0%;}.progress-text{color:var(--gray);font-size:0.9rem;}.result-section{text-align:center;padding:2rem;background:linear-gradient(135deg,#f0fff4 0%,var(--white) 100%);border:1px solid var(--success);border-radius:var(--radius-lg);margin:1.5rem 0;}.result-icon{font-size:3rem;margin-bottom:1rem;}.result-success h3{font-size:1.25rem;color:var(--success);margin-bottom:0.5rem;}.result-success p{color:var(--gray);margin-bottom:1.5rem;}.error-section{text-align:center;padding:2rem;background:linear-gradient(135deg,#fff5f5 0%,var(--white) 100%);border:1px solid var(--primary);border-radius:var(--radius-lg);margin:1.5rem 0;}.error-icon{font-size:3rem;margin-bottom:1rem;}.error-content h3{font-size:1.25rem;color:var(--primary);margin-bottom:0.5rem;}.error-content p{color:var(--gray);margin-bottom:1.5rem;}.tool-instructions{margin-top:2rem;padding:1.5rem;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);}.tool-instructions h3{font-size:1.1rem;font-weight:600;margin-bottom:1rem;color:var(--dark);}.instructions-content{color:var(--gray);font-size:0.9rem;line-height:1.7;}.related-tools{margin-top:2rem;}.related-tools h3{font-size:1.1rem;font-weight:600;margin-bottom:1rem;color:var(--dark);}.page-content{padding:2rem 0 4rem;}.page-title{font-size:1.75rem;font-weight:700;color:var(--dark);margin-bottom:1.5rem;padding-bottom:0.75rem;border-bottom:2px solid var(--light);}.page-body{background:var(--white);padding:2rem;border-radius:var(--radius-lg);border:1px solid var(--border);line-height:1.8;color:var(--dark);}.page-body p{margin-bottom:1rem;}.page-body h2,.page-body h3{margin:1.5rem 0 0.75rem;color:var(--dark);}.page-body ul,.page-body ol{margin-left:1.5rem;margin-bottom:1rem;}.footer{background:var(--dark);color:var(--gray-light);padding:2rem 0;margin-top:auto;}.footer-content{display:flex;flex-direction:column;align-items:center;gap:1rem;text-align:center;}.footer-brand{display:flex;align-items:center;gap:0.5rem;font-size:1.1rem;font-weight:600;color:var(--white);}.footer-links{display:flex;gap:1.5rem;flex-wrap:wrap;justify-content:center;}.footer-links a{color:#b0c4de;transition:color var(--transition);}.footer-links a:hover{color:var(--white);}.footer-copyright{font-size:0.85rem;color:#a8b8c8;}@media (max-width:1024px){.tools-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));}}@media (max-width:768px){.hero-title{font-size:1.75rem;}.hero-subtitle{font-size:1rem;}.hero-features{gap:1rem;}.nav-toggle{display:flex;}.nav-menu{display:none;position:absolute;top:64px;left:0;right:0;background:var(--white);flex-direction:column;padding:1rem;gap:0;border-bottom:1px solid var(--border);box-shadow:var(--shadow-md);}.nav-menu.active{display:flex;}.nav-menu a{padding:0.75rem 1rem;border-bottom:1px solid var(--light);}.nav-menu a:last-child{border-bottom:none;}.nav-menu a::after{display:none;}.layout-wrapper{flex-direction:column;padding:0.75rem;gap:0.75rem;}.sidebar{width:100%;position:static;order:1;}.main-content{order:0;}.tools-grid{grid-template-columns:repeat(2,1fr);gap:0.75rem;}.tool-card{padding:1rem 0.5rem;}.tool-card .tool-icon svg{width:24px;height:24px;}.tool-card .tool-title{font-size:0.85rem;}.category-title{font-size:1.25rem;}.upload-area{padding:2rem 1rem;}.upload-icon{font-size:2.5rem;}.tool-title-large{font-size:1.5rem;}.page-title{font-size:1.5rem;}.page-body{padding:1.25rem;}.footer-links{gap:1rem;}}@media (max-width:480px){.hero-title{font-size:1.5rem;}.tools-grid{grid-template-columns:repeat(2,1fr);gap:0.5rem;}.tool-card{padding:0.75rem 0.25rem;}.tool-card .tool-icon{width:32px;height:32px;margin-bottom:0.5rem;}.tool-card .tool-icon svg{width:20px;height:20px;}.tool-card .tool-title{font-size:0.8rem;}.tool-card .tool-description{font-size:0.65rem;line-height:1.3;max-height:2.6em;overflow:hidden;}}.tool-workspace{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem;}.action-section{text-align:center;margin:1.5rem 0;}.btn-icon{font-size:1.1em;}@media (pointer:coarse){.nav-menu a{padding:0.75rem 1rem;min-height:44px;display:flex;align-items:center;}.tool-card{min-height:44px;}.btn{min-height:44px;padding:0.75rem 1.5rem;}.file-item .file-remove{min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center;}.nav-toggle{min-width:44px;min-height:44px;}.form-input{min-height:44px;font-size:16px;}.radio-label input[type="radio"],.radio-label input[type="checkbox"]{width:20px;height:20px;}}@media (max-width:768px){html,body{overflow-x:hidden;max-width:100%;}.navbar{padding-top:env(safe-area-inset-top);}.footer{padding-bottom:env(safe-area-inset-bottom);}.nav-menu{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--white);flex-direction:column;padding:calc(64px + env(safe-area-inset-top)) 1rem 1rem;gap:0;z-index:99;overflow-y:auto;transform:translateX(100%);transition:transform 0.3s ease;box-shadow:none;}.nav-menu.active{display:flex;transform:translateX(0);box-shadow:-4px 0 24px rgba(0,0,0,0.15);}.nav-menu a{padding:1rem 0.5rem;border-bottom:1px solid var(--light);font-size:1.05rem;min-height:48px;display:flex;align-items:center;}.nav-toggle{z-index:100;position:relative;}.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(7px,-7px);}.tools-grid{grid-template-columns:repeat(2,1fr);gap:0.75rem;}.upload-area{padding:2.5rem 1rem;min-height:120px;}.tool-workspace{padding:1rem;}.progress-bar{height:10px;}.promo-placeholder{min-height:60px;padding:1rem;}.page-body{padding:1rem;font-size:0.95rem;}.sidebar{order:2;}.sidebar .promo-wrap{margin:0.5rem 0;}.toast-container{top:env(safe-area-inset-top,0);left:1rem;right:1rem;}.toast{width:100%;max-width:none;}}@media (max-width:374px){.hero-title{font-size:1.3rem;}.hero-subtitle{font-size:0.9rem;}.tools-grid{gap:0.5rem;}.tool-card{padding:0.75rem 0.25rem;}.tool-card .tool-title{font-size:0.75rem;}}@media (max-width:1024px) and (orientation:landscape) and (max-height:500px){.hero{padding:1.5rem 0;}.tools-section{padding:1.5rem 0;}.nav-menu.active{padding-top:64px;}}@media (min-width:1920px){:root{--max-width:1400px;}.tools-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));}}@media (prefers-color-scheme:dark){.promo-placeholder{background:repeating-linear-gradient( 135deg,#1a1a1a,#1a1a1a 10px,#2a2a2a 10px,#2a2a2a 20px );border-color:#444;}.promo-placeholder .promo-label{color:#666;}.promo-placeholder .promo-name{color:#999;background:#333;}}@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important;}}.text-ellipsis{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}.text-clamp-2{overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}.float-slider{position:fixed;right:1.5rem;bottom:1.5rem;z-index:999;display:flex;flex-direction:column;gap:0.5rem;opacity:0;visibility:hidden;transform:translateY(1rem);transition:opacity 0.3s ease,transform 0.3s ease,visibility 0.3s ease;pointer-events:none;}.float-slider.visible{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;}.float-slider-btn{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border:none;border-radius:50%;background:var(--primary);color:var(--white);cursor:pointer;box-shadow:var(--shadow-md);transition:background 0.2s ease,transform 0.2s ease;-webkit-tap-highlight-color:transparent;touch-action:manipulation;text-decoration:none;}#float-btn-x{background:#000000;}#float-btn-x:hover,#float-btn-x:focus-visible{background:#1a1a1a;}#float-btn-fb{background:#1877f2;}#float-btn-fb:hover,#float-btn-fb:focus-visible{background:#1464c4;}#float-btn-top{background:var(--primary);}#float-btn-top:hover,#float-btn-top:focus-visible{background:var(--primary-dark);}#float-btn-home{background:var(--primary);}#float-btn-home:hover,#float-btn-home:focus-visible{background:var(--primary-dark);}.float-slider-btn:hover,.float-slider-btn:focus-visible{transform:scale(1.1);outline:2px solid var(--white);outline-offset:2px;}.float-slider-btn:active{transform:scale(0.95);}html[dir="rtl"] .float-slider{right:auto;left:1.5rem;}@media (max-width:768px){.float-slider{right:1rem;bottom:1rem;}html[dir="rtl"] .float-slider{left:1rem;}.float-slider-btn{width:40px;height:40px;}}@media (prefers-reduced-motion:reduce){.float-slider{transition:none;}.float-slider-btn{transition:none;}}.skip-link{position:absolute;top:-100%;left:0;background:var(--primary);color:#fff;padding:0.5rem 1rem;border-radius:0 0 var(--radius) 0;z-index:10000;font-weight:600;font-size:0.9rem;transition:top 0.2s ease;}.skip-link:focus{top:0;color:#fff;}.site-header{position:relative;}.promo-header{min-height:40px;}.promo-content-top,.promo-content-bottom{min-height:90px;}.promo-sidebar-top,.promo-sidebar-bottom{min-height:120px;}.promo-footer{min-height:50px;}