:root{--primary:#4338ca;--primary-dark:#3730a3;--primary-light:#6366f1;--secondary:#7e22ce;--accent:#be185d;--success:#059669;--success-light:#10b981;--warning:#d97706;--danger:#dc2626;--dark:#1e1b4b;--darker:#17143c;--light:#fafbff;--gray-100:#f3f4f9;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-400:#9ca3af;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--gray-800:#1f2937;--radius:12px;--shadow:0 4px 12px rgba(0,0,0,0.05);--shadow-hover:0 10px 25px rgba(0,0,0,0.08);--transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}
*{margin:0;padding:0;box-sizing:border-box}
html{height:100%}
body{font-family:'Tajawal',sans-serif;background:linear-gradient(135deg,#f3f4f9 0%,#f3f4f9 100%);color:var(--gray-800);transition:var(--transition);top:0px !important;position:static !important;min-height:100%;overflow-x:hidden;display:flex;flex-direction:column}
.dark body{background:linear-gradient(135deg,#020617 0%,#020617 100%);color:var(--gray-200)}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 1rem}
@media (min-width:480px){.container{padding:0 1.25rem}}
@media (min-width:768px){.container{padding:0 1.5rem}}
@media (max-width:992px){.logo-img{height:45px}}
@media (max-width:768px){.logo-img{height:40px}}
.dark .nav-link,.dark .mobile-menu-btn,.dark .btn-icon,.dark .search-box i,.dark .mobile-search-box i{text-shadow:0 1px 3px rgba(0,0,0,0.3)}
.dark .nav-link:hover,.dark .nav-link.active{color:white}
.search-box input{padding:0.6rem 1rem 0.6rem 2.5rem;width:220px;border-radius:12px;border:1px solid var(--gray-200);background:white;color:var(--dark);font-size:0.9rem;transition:var(--transition)}
.dark .search-box input{background:rgba(255,255,255,0.05);border-color:rgba(255,255,255,0.1);color:white}
.btn-icon{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:white;color:var(--gray-700);cursor:pointer;border:none;box-shadow:0 2px 6px rgba(0,0,0,0.04);transition:var(--transition)}
.dark .btn-icon{background:rgba(255,255,255,0.05);color:white;box-shadow:none}
.dark .mobile-menu-btn{color:white}
.dark .mobile-nav a{color:rgba(255,255,255,0.8)}
.mobile-search-box input{width:100%;padding:0.75rem 2rem 0.75rem 2.5rem;border-radius:12px;border:1px solid rgba(0,0,0,0.1);background:rgba(255,255,255,0.95);color:var(--dark);font-size:0.95rem}
.dark .mobile-search-box input{background:rgba(255,255,255,0.1);border-color:rgba(255,255,255,0.1);color:white}
@media (max-width:767px){.nav-links,.search-box{display:none}.mobile-menu-btn{display:flex}}
.hero{text-align:center;padding:1.5rem 0.5rem 1rem;position:relative}
@media (min-width:480px){.hero{padding:2.5rem 1rem 1.5rem}}
@media (min-width:768px){.hero{padding:4rem 1rem 3rem}}
.hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:radial-gradient(circle at 50% 0%,rgba(67,56,202,0.08) 0%,transparent 60%);z-index:-1;pointer-events:none}
.hero h1{font-size:1.75rem;font-weight:800;margin-bottom:0.5rem;line-height:1.25;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;background-clip:text;color:transparent}
@media (min-width:480px){.hero h1{font-size:2.25rem;margin-bottom:0.85rem}}
@media (min-width:768px){.hero h1{font-size:3rem;margin-bottom:1rem}}
.dark .hero h1{background:linear-gradient(135deg,#818cf8,#c084fc);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:0.9rem;color:#3f3f46;max-width:700px;margin:0 auto;line-height:1.6}
@media (min-width:480px){.hero p{font-size:1.05rem}}
@media (min-width:768px){.hero p{font-size:1.25rem;line-height:1.7}}
.dark .hero p{color:#e2e8f0}
.tool-workspace{background:white;border-radius:var(--radius);overflow:visible;transition:var(--transition);box-shadow:var(--shadow);padding:0.75rem;border:1px solid var(--gray-200);margin-bottom:1.5rem}
@media (min-width:480px){.tool-workspace{padding:1rem;margin-bottom:2rem;overflow:hidden;padding-bottom:1rem}}
@media (min-width:768px){.tool-workspace{padding:1.25rem;margin-bottom:4rem}}
.dark .tool-workspace{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.05)}
.upload-zone{border:2px dashed var(--gray-300);border-radius:var(--radius);padding:1.5rem 0.75rem;text-align:center;cursor:pointer;transition:var(--transition);background:linear-gradient(135deg,var(--gray-100) 0%,#fff 100%);position:relative;overflow:hidden}
@media (min-width:480px){.upload-zone{padding:2.5rem 1rem}}
@media (min-width:768px){.upload-zone{padding:3.5rem 1rem}}
.dark .upload-zone{border-color:rgba(255,255,255,0.1);background:linear-gradient(135deg,rgba(255,255,255,0.02) 0%,rgba(255,255,255,0.05) 100%)}
.upload-zone:hover,.upload-zone.dragover{border-color:var(--primary);background:linear-gradient(135deg,rgba(67,56,202,0.08) 0%,rgba(99,102,241,0.05) 100%);transform:scale(1.01)}
.dark .upload-zone:hover,.dark .upload-zone.dragover{background:linear-gradient(135deg,rgba(139,92,246,0.12) 0%,rgba(99,102,241,0.08) 100%)}
.upload-zone.error{border-color:#dc2626;animation:shake 0.4s cubic-bezier(.36,.07,.19,.97) both}
@keyframes shake{10%,90%{transform:translate3d(-1px,0,0)}20%,80%{transform:translate3d(2px,0,0)}30%,50%,70%{transform:translate3d(-4px,0,0)}40%,60%{transform:translate3d(4px,0,0)}}
.upload-icon{font-size:2rem;color:var(--primary);margin-bottom:0.5rem;transition:var(--transition);display:block}
@media (min-width:480px){.upload-icon{font-size:2.75rem;margin-bottom:1rem}}
@media (min-width:768px){.upload-icon{font-size:3rem}}
.upload-zone:hover .upload-icon{transform:translateY(-4px) scale(1.1)}
.upload-text h3{margin-bottom:0.3rem;color:#1e1b4b;font-size:0.95rem;font-weight:700}
@media (min-width:480px){.upload-text h3{font-size:1.1rem;margin-bottom:0.5rem}}
@media (min-width:768px){.upload-text h3{font-size:1.15rem}}
.dark .upload-text h3{color:#f8fafc}
.upload-text p{color:#4b5563;font-size:0.8rem;margin-bottom:1rem}
@media (min-width:480px){.upload-text p{font-size:0.88rem;margin-bottom:1.5rem}}
.dark .upload-text p{color:#cbd5e1}
.btn-upload-trigger{display:inline-flex;align-items:center;justify-content:center;gap:0.4rem;padding:0.6rem 1.5rem;border:none;border-radius:var(--radius);background:linear-gradient(135deg,var(--primary),var(--secondary));color:white;font-weight:700;font-size:0.88rem;font-family:'Tajawal',sans-serif;cursor:pointer;box-shadow:0 4px 15px rgba(67,56,202,0.3);transition:var(--transition);position:relative;overflow:hidden}
@media (min-width:480px){.btn-upload-trigger{padding:0.75rem 2rem;font-size:1rem;gap:0.5rem}}
.btn-upload-trigger:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(67,56,202,0.45)}
.btn-upload-trigger:active{transform:translateY(0)}
.btn-upload-trigger::after{content:'';position:absolute;top:50%;left:50%;width:0;height:0;background:rgba(255,255,255,0.2);border-radius:50%;transform:translate(-50%,-50%);transition:width 0.3s,height 0.3s}
.btn-upload-trigger:active::after{width:200px;height:200px}
.tool-wrapper{margin-bottom:0}
.workspace{display:none;grid-template-columns:1fr;gap:0.75rem;animation:slideUp 0.5s ease;align-items:start}
@media (min-width:640px){.workspace{gap:1rem}}
@media (min-width:960px){.workspace{grid-template-columns:1fr 380px;gap:2rem}.controls-panel{position:sticky;top:calc(72px+2rem)}}
@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.preview-box{background:var(--gray-100);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;min-height:200px;padding:0.5rem;position:relative;background-image:linear-gradient(45deg,#e5e7eb 25%,transparent 25%),linear-gradient(-45deg,#e5e7eb 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e5e7eb 75%),linear-gradient(-45deg,transparent 75%,#e5e7eb 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0px;overflow:hidden}
@media (min-width:480px){.preview-box{min-height:280px;padding:1rem}}
@media (min-width:768px){.preview-box{min-height:360px}}
@media (min-width:960px){.preview-box{min-height:420px}}
.dark .preview-box{background-image:linear-gradient(45deg,#252736 25%,transparent 25%),linear-gradient(-45deg,#252736 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#252736 75%),linear-gradient(-45deg,transparent 75%,#252736 75%)}
.preview-img{max-width:100%;max-height:350px;border-radius:8px;box-shadow:var(--shadow-hover);object-fit:contain}
@media (min-width:768px){.preview-img{max-height:480px}}
.pdf-preview-container{display:none;width:100%;animation:slideUp 0.5s ease}
.pdf-preview-container.active{display:block}
.pages-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:0.5rem;margin-top:0.75rem;max-height:300px;overflow-y:auto;padding:0.5rem}
@media (min-width:480px){.pages-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:0.75rem;padding:0.75rem}}
.page-thumb{position:relative;border-radius:8px;overflow:hidden;cursor:pointer;border:2px solid transparent;transition:var(--transition);background:var(--gray-100)}
.page-thumb:hover{border-color:var(--primary-light);transform:scale(1.02)}
.page-thumb.selected{border-color:var(--primary);box-shadow:0 0 0 3px rgba(67,56,202,0.2)}
.page-thumb img{width:100%;height:auto;display:block;aspect-ratio:1/1.414;object-fit:contain}
.dark .page-thumb{background:#252736}
.page-number{position:absolute;bottom:0;left:0;right:0;background:rgba(0,0,0,0.7);color:white;padding:0.2rem;font-size:0.7rem;text-align:center}
.file-info-bar{display:flex;flex-wrap:wrap;gap:0.3rem;margin-bottom:0.4rem;justify-content:center}
@media (min-width:480px){.file-info-bar{gap:0.5rem;margin-bottom:0.5rem;justify-content:flex-start}}
@media (min-width:768px){.file-info-bar{gap:0.6rem;margin-bottom:0.75rem}}
.info-chip{display:inline-flex;align-items:center;gap:0.3rem;padding:0.15rem 0.45rem;border-radius:6px;font-size:0.68rem;font-weight:600;background:var(--gray-200);color:#374151;border:1px solid var(--gray-300);white-space:nowrap;max-width:100%;overflow:hidden;text-overflow:ellipsis}
@media (min-width:480px){.info-chip{padding:0.3rem 0.65rem;font-size:0.75rem;gap:0.35rem;border-radius:8px}}
@media (min-width:768px){.info-chip{font-size:0.78rem}}
.dark .info-chip{background:rgba(255,255,255,0.06);border-color:rgba(255,255,255,0.1);color:#cbd5e1}
.info-chip i{font-size:0.6rem;color:var(--primary);flex-shrink:0}
@media (min-width:480px){.info-chip i{font-size:0.65rem}}
.info-chip.format-active{background:rgba(67,56,202,0.12);color:var(--primary);border-color:rgba(67,56,202,0.25)}
.dark .info-chip.format-active{background:rgba(99,102,241,0.15);color:var(--primary-light);border-color:rgba(99,102,241,0.3)}
.controls-panel{display:flex;flex-direction:column;gap:0.6rem}
@media (min-width:480px){.controls-panel{gap:0.75rem}}
@media (min-width:960px){.controls-panel{gap:1.25rem}}
.control-group{background:var(--gray-200);padding:0.75rem;border-radius:10px}
@media (min-width:480px){.control-group{padding:1rem;border-radius:12px}}
@media (min-width:960px){.control-group{padding:1.5rem;border-radius:14px}}
.dark .control-group{background:rgba(255,255,255,0.05)}
.control-label{display:flex;align-items:center;justify-content:space-between;margin-bottom:0.5rem;font-weight:600;color:#374151;font-size:0.82rem;gap:0.5rem;flex-wrap:wrap}
@media (min-width:480px){.control-label{font-size:0.9rem;margin-bottom:0.75rem;flex-wrap:nowrap}}
@media (min-width:960px){.control-label{font-size:1rem;margin-bottom:1rem}}
.dark .control-label{color:#e2e8f0}
.label-hint{font-weight:400;font-size:0.68rem;color:#6b7280;text-align:left}
@media (min-width:960px){.label-hint{font-size:0.82rem}}
.dark .label-hint{color:#94a3b8}
.form-select{width:100%;padding:0.55rem 0.75rem;border-radius:8px;border:1px solid #9ca3af;background:#ffffff;color:#1f2937;font-family:inherit;font-size:0.85rem;transition:var(--transition);appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%234b5563' viewBox='0 0 16 16'%3E%3Cpath d='M1.5 5.5l6.5 6 6.5-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:left 0.75rem center;cursor:pointer}
@media (min-width:480px){.form-select{padding:0.7rem 1rem;font-size:0.92rem;background-position:left 1rem center}}
@media (min-width:960px){.form-select{padding:0.85rem 1rem;font-size:1rem;border-radius:10px}}
.dark .form-select{background-color:#252736;border-color:#4b5563;color:#f1f5f9;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%239ca3af' viewBox='0 0 16 16'%3E%3Cpath d='M1.5 5.5l6.5 6 6.5-6'/%3E%3C/svg%3E")}
.form-select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(67,56,202,0.15);outline:none}
.quality-slider-container{margin-top:0.5rem}
.quality-slider{width:100%;height:6px;border-radius:3px;-webkit-appearance:none;appearance:none;background:var(--gray-300);outline:none;cursor:pointer}
.dark .quality-slider{background:var(--gray-400)}
.quality-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;box-shadow:0 2px 6px rgba(67,56,202,0.3)}
.quality-slider::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;border:none;box-shadow:0 2px 6px rgba(67,56,202,0.3)}
.quality-slider:disabled{opacity:0.4;cursor:not-allowed}
.quality-slider:disabled::-webkit-slider-thumb{cursor:not-allowed}
.quality-slider:disabled::-moz-range-thumb{cursor:not-allowed}
.btn-main{width:100%;padding:0.7rem 1rem;border:none;background:linear-gradient(135deg,var(--primary),var(--secondary));color:white;border-radius:10px;font-weight:700;font-size:0.92rem;font-family:'Tajawal',sans-serif;display:flex;justify-content:center;align-items:center;gap:0.4rem;transition:var(--transition);box-shadow:0 4px 15px rgba(67,56,202,0.25);cursor:pointer;min-height:44px;position:relative;overflow:hidden}
@media (min-width:480px){.btn-main{padding:0.85rem 1.25rem;font-size:1rem;border-radius:12px;gap:0.5rem}}
@media (min-width:960px){.btn-main{padding:1.1rem 1.5rem;font-size:1.1rem;border-radius:14px;min-height:52px}}
.btn-main:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 25px rgba(67,56,202,0.45)}
.btn-main:active:not(:disabled){transform:translateY(0)}
.btn-main:disabled{opacity:0.7;cursor:not-allowed}
.btn-main.loading::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);animation:shimmer 1.5s infinite}
@keyframes shimmer{100%{left:100%}}
.btn-secondary{width:100%;padding:0.6rem 1rem;background:transparent;border:1px solid #9ca3af;color:#374151;border-radius:10px;font-weight:600;font-family:'Tajawal',sans-serif;font-size:0.85rem;transition:var(--transition);cursor:pointer;display:flex;justify-content:center;align-items:center;gap:0.4rem;min-height:42px}
@media (min-width:480px){.btn-secondary{padding:0.75rem 1.25rem;font-size:0.92rem;border-radius:12px;gap:0.5rem}}
@media (min-width:960px){.btn-secondary{padding:0.9rem 1.5rem;font-size:0.95rem;border-radius:14px;min-height:48px}}
.dark .btn-secondary{border-color:rgba(255,255,255,0.25);color:#e2e8f0}
.btn-secondary:hover{background:#e5e7eb;color:#1f2937}
.dark .btn-secondary:hover{background:rgba(255,255,255,0.15)}
.progress-wrapper{display:none;margin-top:0.5rem}
@media (min-width:480px){.progress-wrapper{margin-top:0.75rem}}
.progress-track{height:6px;background:var(--gray-300);border-radius:10px;overflow:hidden;position:relative}
@media (min-width:768px){.progress-track{height:8px}}
.dark .progress-track{background:rgba(255,255,255,0.1)}
.progress-fill{height:100%;border-radius:10px;transition:width 0.15s linear;background:linear-gradient(90deg,var(--primary),var(--secondary));width:0%;position:relative;overflow:hidden}
.progress-fill::after{content:'';position:absolute;top:0;left:0;bottom:0;right:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.3),transparent);animation:shimmer 1.5s infinite}
.progress-text{text-align:center;margin-top:0.3rem;font-size:0.8rem;color:#374151;font-weight:500;display:flex;align-items:center;justify-content:center;gap:0.5rem}
@media (min-width:480px){.progress-text{font-size:0.88rem;margin-top:0.5rem}}
.progress-text .spinner{display:inline-block;width:14px;height:14px;border:2px solid #9ca3af;border-top-color:var(--primary);border-radius:50%;animation:spin 0.8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.result-area{display:none;animation:resultIn 0.4s cubic-bezier(0.4,0,0.2,1)}
@keyframes resultIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.result-success-msg{display:flex;align-items:center;gap:0.5rem;padding:0.6rem 0.85rem;border-radius:10px;background:linear-gradient(135deg,rgba(5,150,105,0.1) 0%,rgba(5,150,105,0.05) 100%);border:1px solid rgba(5,150,105,0.25);margin-bottom:0.6rem}
@media (min-width:960px){.result-success-msg{padding:0.85rem 1.25rem;border-radius:12px;margin-bottom:1rem}}
.result-success-msg i{font-size:1rem;color:#059669;flex-shrink:0}
.result-success-msg span{font-size:0.82rem;font-weight:600;color:#059669}
@media (min-width:960px){.result-success-msg span{font-size:0.92rem}}
.dark .result-success-msg i{color:#10b981}
.dark .result-success-msg span{color:#10b981}
.result-images-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(80px,1fr));gap:0.5rem;margin-bottom:0.75rem;max-height:250px;overflow-y:auto}
@media (min-width:480px){.result-images-list{grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:0.75rem}}
.result-thumb{position:relative;border-radius:6px;overflow:hidden;border:1px solid var(--gray-300)}
.result-thumb img{width:100%;height:auto;display:block}
.result-thumb .download-single{position:absolute;bottom:2px;left:50%;transform:translateX(-50%);background:rgba(5,150,105,0.95);color:white;padding:0.2rem 0.5rem;border-radius:4px;font-size:0.65rem;text-decoration:none}
.result-actions{display:flex;flex-direction:column;gap:0.4rem}
@media (min-width:960px){.result-actions{gap:0.6rem}}
.btn-download{background:var(--success);color:white;padding:0.65rem 1.5rem;border-radius:10px;font-weight:700;display:flex;align-items:center;justify-content:center;gap:0.4rem;transition:var(--transition);border:none;cursor:pointer;font-family:'Tajawal',sans-serif;font-size:0.9rem;box-shadow:0 3px 12px rgba(5,150,105,0.25);min-height:44px;text-decoration:none;position:relative;overflow:hidden}
@media (min-width:960px){.btn-download{padding:0.9rem 1.5rem;font-size:1rem;border-radius:12px;min-height:48px}}
.btn-download:hover{background:#047857;transform:translateY(-2px);box-shadow:0 6px 20px rgba(5,150,105,0.4)}
.btn-download:active{transform:translateY(0)}
.btn-download:disabled{opacity:0.6;cursor:not-allowed;transform:none}
.btn-new{background:transparent;border:1px solid var(--gray-400);color:var(--gray-700);padding:0.6rem 1.25rem;border-radius:10px;font-weight:600;font-size:0.85rem;font-family:'Tajawal',sans-serif;cursor:pointer;transition:var(--transition);display:flex;align-items:center;justify-content:center;gap:0.4rem;min-height:42px}
@media (min-width:960px){.btn-new{padding:0.8rem 1.5rem;font-size:0.92rem;border-radius:12px;min-height:48px}}
.dark .btn-new{border-color:rgba(255,255,255,0.25);color:var(--gray-200)}
.btn-new:hover{background:var(--gray-200);color:var(--gray-800)}
.dark .btn-new:hover{background:rgba(255,255,255,0.1)}
.toast-container{position:fixed;bottom:1rem;left:50%;transform:translateX(-50%);z-index:1000;display:flex;flex-direction:column;gap:0.4rem;pointer-events:none;width:calc(100% - 2rem);max-width:400px}
@media (min-width:480px){.toast-container{bottom:1.5rem;width:auto;max-width:none;gap:0.5rem}}
@media (min-width:768px){.toast-container{bottom:2rem}}
.toast{background:white;color:#1e1b4b;padding:0.75rem 1rem;border-radius:50px;box-shadow:var(--shadow-hover);display:flex;align-items:center;gap:0.5rem;font-weight:500;font-size:0.82rem;opacity:0;transform:translateY(16px);transition:var(--transition);pointer-events:auto;border:1px solid #d1d5db}
@media (min-width:480px){.toast{padding:0.9rem 1.5rem;font-size:0.9rem;gap:0.75rem;transform:translateY(20px)}}
.dark .toast{background:#252736;color:#f1f5f9;border-color:rgba(255,255,255,0.15)}
.toast.show{opacity:1;transform:translateY(0)}
.toast.success i{color:#059669}
.dark .toast.success i{color:#10b981}
.toast.error i{color:#dc2626}
.dark .toast.error i{color:#f87171}
.btn-back-preview{position:absolute;top:0.5rem;right:0.5rem;z-index:5;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,0.9);color:#374151;border:1px solid #e5e7eb;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:0.85rem;transition:var(--transition);box-shadow:0 2px 8px rgba(0,0,0,0.1)}
.dark .btn-back-preview{background:rgba(30,30,50,0.95);color:#f1f5f9;border-color:rgba(255,255,255,0.15)}
.btn-back-preview:hover{background:var(--primary);color:white;border-color:var(--primary);transform:scale(1.1)}
footer{background:var(--light);border-top:1px solid var(--gray-200);padding:3rem 0 1.5rem;margin-top:4rem}
@media (max-width:992px){.footer-grid{grid-template-columns:1fr 1fr;gap:2rem}}
@media (max-width:576px){.footer-grid{grid-template-columns:1fr;gap:1.5rem}}
@media (min-width:960px){.pages-grid{max-height:calc(100vh - 150px)}}
@media (max-width:359px){.info-chip{font-size:0.62rem;padding:0.12rem 0.35rem}.info-chip span{max-width:55px;overflow:hidden;text-overflow:ellipsis}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms !important;transition-duration:0.01ms !important}}
.content-section{width:100%;max-width:900px;margin:2rem auto 0;padding:0 1rem}
@media (min-width:768px){.content-section{margin:3rem auto 0}}
.section-title{font-size:1.5rem;font-weight:700;color:#1e1b4b;margin-bottom:1.5rem;text-align:center}
@media (min-width:768px){.section-title{font-size:1.75rem}}
@media (max-width:768px){.content-section{margin-top:2rem;padding:0 0.75rem}}
.dark .section-title{color:#f8fafc}
.content-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin-bottom:1.5rem}
@media (min-width:768px){.content-grid{margin-bottom:2rem}}
@media (max-width:768px){.content-grid{grid-template-columns:1fr}.content-section{margin-top:2rem;padding:0 0.75rem}}
.content-card{background:white;border-radius:var(--radius);padding:1.5rem;border:1px solid var(--gray-200);box-shadow:var(--shadow)}
.dark .content-card{background:rgba(255,255,255,0.03);border-color:rgba(255,255,255,0.05)}
.content-card h3{color:#4338ca;font-size:1.1rem;margin-bottom:0.75rem;display:flex;align-items:center;gap:0.5rem}
.content-card p{color:#374151;font-size:0.95rem;line-height:1.6}
.dark .content-card h3{color:#818cf8}
.dark .content-card p{color:#e2e8f0}
.content-card ul{list-style:none;padding:0}
.content-card li{color:#374151;font-size:0.95rem;padding:0.5rem 0;padding-right:1.5rem;position:relative}
.dark .content-card li{color:#e2e8f0}
.content-card li::before{content:'\f00c';font-family:'Font Awesome 6 Free';font-weight:900;position:absolute;right:0;color:var(--success);font-size:0.75rem;top:0.6rem}
@media (min-width:768px){.content-card li::before{font-size:0.85rem;top:0.5rem}}
.steps-list{counter-reset:step}
.step-item{background:white;border-radius:var(--radius);padding:1.25rem;border:1px solid var(--gray-200);margin-bottom:1rem;display:flex;align-items:center;gap:1rem;box-shadow:var(--shadow)}
.dark .step-item{background:rgba(255,255,255,0.03);border-color:rgba(255,255,255,0.05)}
.step-number{width:36px;height:36px;border-radius:50%;background:linear-gradient(90deg,var(--primary),var(--secondary));color:white;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
.step-text{flex:1}
.step-text h4{color:#1e1b4b;font-size:1rem;margin-bottom:0.25rem}
.dark .step-text h4{color:#f8fafc}
.step-text p{color:#4b5563;font-size:0.9rem}
.dark .step-text p{color:#cbd5e1}
.faq-section{margin-top:2rem}
.faq-item{background:white;border-radius:var(--radius);padding:1.25rem;border:1px solid var(--gray-200);margin-bottom:1rem;box-shadow:var(--shadow)}
.dark .faq-item{background:rgba(255,255,255,0.03);border-color:rgba(255,255,255,0.05)}
.faq-question{color:#1e1b4b;font-weight:600;font-size:1rem;margin-bottom:0.5rem;display:flex;align-items:center;gap:0.5rem}
.dark .faq-question{color:#f8fafc}
.faq-question i{color:#4338ca}
.dark .faq-question i{color:#818cf8}
.faq-answer{color:#4b5563;font-size:0.95rem;line-height:1.6;padding-right:1.5rem}
.dark .faq-answer{color:#cbd5e1}
.related-tools-section{max-width:900px;margin:3rem auto 0;padding:0 1rem;animation:fadeInUp 0.8s ease}
.related-tools-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem}
.related-tools-title{font-size:1.5rem;font-weight:700;color:var(--dark);display:flex;align-items:center;gap:0.75rem}
.dark .related-tools-title{color:white}
.related-tools-title i{color:var(--primary);font-size:1.3rem}
.related-tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
@media (max-width:992px){.related-tools-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.related-tools-grid{grid-template-columns:1fr}.related-tools-title{font-size:1.25rem}}
.related-tool-card{display:flex;align-items:center;gap:0.85rem;padding:1rem 1.25rem;background:#ffffff;border:1px solid #e5e7eb;border-radius:var(--radius);box-shadow:var(--shadow);cursor:pointer;text-decoration:none;color:inherit;position:relative;overflow:hidden;transition:var(--transition)}
.dark .related-tool-card{background:#1a1a2e;border-color:#2d2d44}
.related-tool-card::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,#4338ca,#7e22ce);opacity:0;transition:var(--transition)}
.related-tool-card:hover::before{opacity:0.04}
.dark .related-tool-card:hover::before{opacity:0.08}
.related-tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#a5b4fc}
.dark .related-tool-card:hover{border-color:rgba(139,92,246,0.4)}
.related-tool-card:active{transform:translateY(-1px)}
.related-tool-icon{width:44px;height:44px;min-width:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;background:linear-gradient(135deg,rgba(67,56,202,0.08),rgba(126,34,206,0.08));color:#4338ca;transition:var(--transition)}
.dark .related-tool-icon{background:linear-gradient(135deg,rgba(129,140,248,0.12),rgba(196,132,253,0.12));color:#a5b4fc}
.related-tool-card:hover .related-tool-icon{background:linear-gradient(135deg,#4338ca,#7e22ce);color:white;transform:scale(1.05)}
.related-tool-info{flex:1;min-width:0}
.related-tool-name{font-size:0.9rem;font-weight:700;color:#1e1b4b;margin-bottom:0.15rem;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;transition:var(--transition-fast)}
.dark .related-tool-name{color:#e2e8f0}
.related-tool-card:hover .related-tool-name{color:#4338ca}
.dark .related-tool-card:hover .related-tool-name{color:#a5b4fc}
.related-tool-desc{font-size:0.78rem;color:#6b7280;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4}
.dark .related-tool-desc{color:rgba(255,255,255,0.45)}
.related-tool-card:hover .related-tool-desc{color:#4b5563}
.dark .related-tool-card:hover .related-tool-desc{color:rgba(255,255,255,0.6)}
.related-tool-empty{grid-column:1 / -1;text-align:center;padding:2rem;color:var(--gray-500);font-size:0.95rem}