:root{--bg-primary:#09090b;--bg-secondary:#18181b;--bg-card:#18181b99;--bg-card-hover:#18181bd9;--glass-border:#ffffff0f;--glass-shadow:#00000080;--accent:#818cf8;--accent-glow:#818cf833;--accent-hover:#6366f1;--accent-soft:#818cf814;--accent-gradient:linear-gradient(135deg, #818cf8, #a78bfa);--danger:#f87171;--danger-hover:#ef4444;--warning:#fbbf24;--success:#34d399;--text-primary:#fafafa;--text-secondary:#a1a1aa;--text-muted:#52525b}[data-theme=light]{--bg-primary:#f4f4f5;--bg-secondary:#fff;--bg-card:#fffc;--bg-card-hover:#fff;--glass-border:#00000014;--glass-shadow:#0000001a;--accent:#6366f1;--accent-glow:#6366f133;--accent-hover:#4f46e5;--accent-soft:#6366f11a;--accent-gradient:linear-gradient(135deg, #6366f1, #8b5cf6);--text-primary:#18181b;--text-secondary:#52525b;--text-muted:#71717a}:root{--font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-xs:.75rem;--font-sm:.8125rem;--font-base:.9375rem;--font-lg:1.125rem;--font-xl:1.5rem;--font-2xl:2rem;--font-3xl:2.75rem;--space-xs:.25rem;--space-sm:.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-base:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.4s cubic-bezier(.4, 0, .2, 1);--shadow-sm:0 1px 3px #0000004d;--shadow-md:0 4px 14px #0006;--shadow-lg:0 10px 40px #00000080;--shadow-glow:0 0 30px var(--accent-glow)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);background-image:radial-gradient(80% 50% at 50% -10%,#818cf80f 0%,#0000 60%),radial-gradient(50% 40% at 80% 100%,#a78bfa08 0%,#0000 50%);min-height:100vh;overflow-x:hidden}#root{flex-direction:column;min-height:100vh;display:flex}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--text-muted);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.glass-panel{background:var(--bg-card);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}.btn{justify-content:center;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-sm);font-family:var(--font-family);font-size:var(--font-sm);cursor:pointer;transition:all var(--transition-fast);-webkit-user-select:none;user-select:none;border:none;outline:none;font-weight:600;display:inline-flex}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn-primary{background:var(--accent-gradient);color:#fff;box-shadow:var(--shadow-sm), 0 0 20px #818cf81f}.btn-primary:hover:not(:disabled){box-shadow:var(--shadow-md), 0 0 30px #818cf840;transform:translateY(-1px)}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{color:var(--text-secondary);background:#ffffff0a;border:1px solid #ffffff14}.btn-ghost:hover:not(:disabled){color:var(--text-primary);background:#ffffff14;border-color:#ffffff1f}.btn-danger{color:var(--danger);background:#f871711a;border:1px solid #f8717133}.btn-danger:hover:not(:disabled){background:#f871712e;border-color:#f8717159}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse-glow{0%,to{box-shadow:0 0 15px var(--accent-glow)}50%{box-shadow:0 0 30px var(--accent-glow), 0 0 60px #818cf814}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shimmer{0%{background-position:-200%}to{background-position:200%}}.fade-in-up{animation:fadeInUp .5s var(--transition-base) both}.feedback-overlay{-webkit-backdrop-filter:blur(8px);z-index:1000;padding:var(--space-md,1rem);background:#0f172aa6;justify-content:center;align-items:center;animation:.25s ease-out fadeIn;display:flex;position:fixed;inset:0}.feedback-modal{background:var(--bg-secondary,#1e293b);border:1px solid var(--glass-border,#ffffff1a);border-radius:var(--radius-xl,20px);width:100%;max-width:440px;color:var(--text-primary,#f8fafc);padding:2rem;animation:.3s cubic-bezier(.16,1,.3,1) scaleUp;position:relative;box-shadow:0 20px 40px #00000059,0 0 0 1px #ffffff0d}.feedback-close-btn{color:var(--text-secondary,#94a3b8);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;font-size:1.25rem;transition:all .2s;display:flex;position:absolute;top:1.25rem;right:1.25rem}.feedback-close-btn:hover{color:var(--text-primary,#fff);background:#ffffff1a}.feedback-header{text-align:center;margin-bottom:1.25rem}.feedback-badge{text-transform:uppercase;letter-spacing:.05em;color:var(--accent,#818cf8);background:#818cf81f;border-radius:20px;margin-bottom:.75rem;padding:4px 12px;font-size:.75rem;font-weight:700;display:inline-block}.feedback-header h3{color:var(--text-primary,#fff);margin:0 0 .35rem;font-size:1.35rem;font-weight:700}.feedback-subtitle{color:var(--text-secondary,#94a3b8);margin:0;font-size:.875rem}.star-rating{justify-content:center;gap:8px;margin:1.25rem 0 .5rem;display:flex}.star-btn{color:var(--text-secondary,#475569);cursor:pointer;background:0 0;border:none;padding:0 4px;font-size:2.25rem;line-height:1;transition:transform .15s,color .15s}.star-btn:hover,.star-btn.active{color:#fbbf24;text-shadow:0 0 12px #fbbf2466;transform:scale(1.18)}.rating-label{text-align:center;color:#fbbf24;height:1.25rem;margin-bottom:1rem;font-size:.9rem;font-weight:600}.feedback-field{text-align:left;margin-bottom:1rem}.feedback-field label{color:var(--text-secondary,#cbd5e1);margin-bottom:.4rem;font-size:.825rem;font-weight:600;display:block}.optional-tag{color:var(--text-muted,#64748b);font-size:.775rem;font-weight:400}.feedback-field textarea,.feedback-field input{background:var(--bg-primary,#0f172a);border:1px solid var(--glass-border,#ffffff26);border-radius:var(--radius-md,10px);width:100%;color:var(--text-primary,#fff);box-sizing:border-box;padding:.65rem .85rem;font-family:inherit;font-size:.9rem;transition:border-color .2s,box-shadow .2s}.feedback-field textarea:focus,.feedback-field input:focus{border-color:var(--accent,#6366f1);outline:none;box-shadow:0 0 0 3px #6366f133}.feedback-field 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#6366f173}.feedback-btn-primary:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}.feedback-success{text-align:center;padding:1.5rem .5rem}.feedback-success-icon{margin-bottom:.75rem;font-size:3rem;animation:.6s bounce}.feedback-success h3{color:var(--text-primary,#fff);margin:0 0 .5rem;font-size:1.5rem;font-weight:700}.feedback-success p{color:var(--text-secondary,#94a3b8);margin:0;font-size:.95rem}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleUp{0%{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.app{min-height:100vh;padding:var(--space-xl) var(--space-md);flex-direction:column;align-items:center;display:flex}.theme-toggle{top:var(--space-xl);right:var(--space-xl);background:var(--bg-secondary);border:1px solid var(--glass-border);color:var(--text-primary);border-radius:var(--radius-full);cursor:pointer;width:44px;height:44px;transition:all var(--transition-base);box-shadow:var(--shadow-sm);z-index:100;justify-content:center;align-items:center;font-size:1.2rem;display:flex;position:absolute}.theme-toggle:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--text-primary);transform:scale(1.05)}.app-header{text-align:center;margin-bottom:var(--space-2xl);animation:.6s both fadeInUp}.app-brand{margin-bottom:var(--space-md);align-items:center;gap:14px;display:inline-flex}.app-logo{background:var(--accent-gradient);color:#fff;letter-spacing:-.02em;border-radius:10px;justify-content:center;align-items:center;width:44px;height:44px;font-size:1.25rem;font-weight:800;display:inline-flex;box-shadow:0 0 24px #818cf826}.app-title{font-size:var(--font-3xl);letter-spacing:-.04em;color:var(--text-primary);font-weight:800;line-height:1.1}.app-title .title-accent{background:var(--accent-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.app-subtitle{font-size:var(--font-base);color:var(--text-secondary);margin-top:var(--space-sm);letter-spacing:.01em;font-weight:400}.main-nav{justify-content:center;gap:var(--space-md);margin-top:1.5rem;display:flex}.nav-link{border-radius:var(--radius-full);background:var(--bg-secondary);border:1px solid var(--glass-border);color:var(--text-primary);transition:all var(--transition-base);box-shadow:var(--shadow-sm);justify-content:center;align-items:center;padding:10px 24px;font-size:.95rem;font-weight:500;text-decoration:none;display:inline-flex}.nav-link:hover{background:var(--accent-soft);border-color:var(--accent);color:#fff;box-shadow:0 4px 16px var(--accent-glow);transform:translateY(-2px)}.app-content{gap:var(--space-xl);flex-direction:column;width:100%;max-width:900px;display:flex}.step-indicator{justify-content:center;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-md);animation:.6s .1s both fadeInUp;display:flex}.step{align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-md);border-radius:var(--radius-full);font-size:var(--font-xs);text-transform:uppercase;letter-spacing:.05em;transition:all var(--transition-base);font-weight:600;display:flex}.step--active{background:var(--accent-soft);color:var(--accent);border:1px solid #818cf833}.step--completed{color:var(--success);background:#34d3990f;border:1px solid #34d39926}.step--inactive{color:var(--text-muted);background:#ffffff05;border:1px solid #0000}.step-divider{background:var(--text-muted);opacity:.25;width:24px;height:1px}.processing-overlay{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:1000;background:#09090be0;flex-direction:column;justify-content:center;align-items:center;animation:.3s both fadeInUp;display:flex;position:fixed;inset:0}.processing-spinner{border:2.5px solid #818cf81f;border-top-color:var(--accent);width:52px;height:52px;margin-bottom:var(--space-lg);border-radius:50%;animation:.8s linear infinite spin}.processing-text{font-size:var(--font-lg);color:var(--text-primary);font-weight:600}.processing-subtext{font-size:var(--font-sm);color:var(--text-secondary);margin-top:var(--space-xs)}.media-type-badge{align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-md);border-radius:var(--radius-full);font-size:var(--font-xs);color:var(--text-secondary);margin-bottom:var(--space-sm);background:#ffffff08;border:1px solid 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a:hover{color:var(--accent)}.seo-content{margin-top:var(--space-2xl);padding-top:var(--space-xl);text-align:center;border-top:1px solid #ffffff0a;width:100%;max-width:800px;margin-left:auto;margin-right:auto}.seo-article{color:var(--text-secondary);font-size:.95rem;line-height:1.7}.seo-article h2,.seo-article h3{color:var(--text-primary);margin-top:var(--space-lg);margin-bottom:var(--space-sm);font-weight:600}.seo-article h2{font-size:1.5rem}.seo-article h3{font-size:1.25rem}.seo-article p{margin-bottom:var(--space-md)}.seo-article strong{color:var(--text-primary);font-weight:500}.seo-article ol{margin-left:var(--space-lg);margin-bottom:var(--space-lg)}.seo-article li{margin-bottom:var(--space-xs)}.seo-faq{gap:var(--space-md);flex-direction:column;display:flex}.faq-item h4{color:var(--text-primary);margin-bottom:var(--space-xs);font-size:1.05rem;font-weight:500}.faq-item p{margin-bottom:0;font-size:.9rem}.blog-card:hover{border-color:var(--accent);background:#818cf80d!important}.markdown-content h2{color:var(--text);margin-top:2.5rem;margin-bottom:1rem;font-size:1.8rem}.markdown-content h3{color:var(--text);margin-top:2rem;margin-bottom:.8rem;font-size:1.4rem}.markdown-content p{color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.8}.markdown-content ul,.markdown-content ol{color:var(--text-secondary);margin-bottom:1.5rem;padding-left:1.5rem}.markdown-content li{margin-bottom:.5rem}.markdown-content a{color:var(--accent);text-decoration:none}.markdown-content a:hover{text-decoration:underline}.main-content-wrapper{flex-direction:column;align-items:center;width:100%;display:flex}.sidebar-toggle-btn{top:var(--space-xl);left:var(--space-xl);background:var(--bg-secondary);border:1px solid var(--glass-border);color:var(--text-primary);border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-base);box-shadow:var(--shadow-sm);z-index:90;align-items:center;gap:8px;padding:8px 14px;font-size:.9rem;font-weight:700;display:flex;position:fixed}.app.sidebar-open .sidebar-toggle-btn{opacity:0;pointer-events:none}.sidebar-toggle-btn:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--text-primary);transform:scale(1.03)}.sidebar-drawer{background:var(--bg-card);border-right:1px solid var(--glass-border);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);z-index:100;width:280px;height:100vh;padding:var(--space-xl);flex-direction:column;transition:transform .3s cubic-bezier(.16,1,.3,1);display:flex;position:fixed;top:0;left:0;overflow-y:auto;transform:translate(-100%);box-shadow:4px 0 24px #00000040}.sidebar-drawer.open{transform:translate(0)}@media (width>=960px){.app{transition:padding-left .3s 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5px;font-size:.6rem;font-weight:800}.nav-link.active{background:var(--accent-soft);border-color:var(--accent);color:var(--text-primary)}.dropzone-wrapper{animation:.5s both fadeInUp}.dropzone{padding:var(--space-2xl) var(--space-xl);border-radius:var(--radius-lg);background:var(--bg-card);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);cursor:pointer;min-height:320px;transition:all var(--transition-base);border:2px dashed #ffffff1a;flex-direction:column;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.dropzone:before{content:"";border-radius:var(--radius-lg);background:radial-gradient(circle at 50% 50%, var(--accent-soft), transparent 70%);opacity:0;transition:opacity var(--transition-base);position:absolute;inset:0}.dropzone:hover,.dropzone--active{border-color:var(--accent);background:#818cf808}.dropzone:hover:before,.dropzone--active:before{opacity:1}.dropzone-icon{z-index:1;margin-bottom:var(--space-lg);filter:drop-shadow(0 0 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var(--glass-border);box-shadow:var(--shadow-md);padding:var(--space-sm);justify-content:center;align-items:center;display:flex;overflow:hidden}.canvas-inner{line-height:0;display:inline-block;position:relative}.canvas-image{object-fit:contain;-webkit-user-select:none;user-select:none;pointer-events:none;border-radius:var(--radius-sm);max-width:100%;max-height:70vh;display:block}.canvas-overlay{cursor:crosshair;touch-action:none;border-radius:var(--radius-sm);position:absolute;top:0;left:0}.canvas-hint{text-align:center;margin-top:var(--space-sm);font-size:var(--font-xs);color:var(--text-muted)}.canvas-hint kbd{font-family:var(--font-family);background:#ffffff14;border:1px solid #ffffff1f;border-radius:4px;margin:0 2px;padding:1px 6px;font-size:.6875rem;display:inline-block}.toolbar{align-items:center;gap:var(--space-md);padding:var(--space-md) var(--space-lg);border-radius:var(--radius-lg);background:var(--bg-card);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--glass-border);box-shadow:var(--shadow-sm);flex-wrap:wrap;animation:.5s both fadeInUp;display:flex}.toolbar-group{align-items:center;gap:var(--space-sm);display:flex}.toolbar-label{font-size:var(--font-xs);color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;white-space:nowrap;font-weight:600}.toolbar-slider{appearance:none;border-radius:var(--radius-full);width:120px;height:4px;transition:background var(--transition-fast);background:#ffffff14;outline:none}.toolbar-slider:hover{background:#ffffff1f}.toolbar-slider::-webkit-slider-thumb{appearance:none;background:var(--accent);cursor:pointer;width:16px;height:16px;box-shadow:0 0 8px var(--accent-glow);transition:transform 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