*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}:root{--primary:#10b981;--dark-green:#047857;--light-green:#d1fae5;--accent:#f59e0b;--dark-bg:#111827;--light-bg:#ffffff;--text-dark:#1f2937;--text-light:#f9fafb;--bg:var(--light-bg);--text:var(--text-dark);--card-bg:rgba(255, 255, 255, 0.85);--card-border:rgba(16, 185, 129, 0.15);--section-bg:#f0fdf4;--input-bg:#f9fafb;--input-border:#d1d5db;--shadow:0 4px 24px rgba(0, 0, 0, 0.08);--shadow-lg:0 8px 40px rgba(0, 0, 0, 0.12);--radius:16px;--radius-sm:10px;--radius-xs:6px;--transition:0.3s cubic-bezier(0.4, 0, 0.2, 1);--font:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif}body.dark-mode{--bg:var(--dark-bg);--text:var(--text-light);--card-bg:rgba(30, 41, 59, 0.8);--card-border:rgba(16, 185, 129, 0.2);--section-bg:#0f172a;--input-bg:#1e293b;--input-border:#374151;--shadow:0 4px 24px rgba(0, 0, 0, 0.3);--shadow-lg:0 8px 40px rgba(0, 0, 0, 0.4)}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;transition:background var(--transition),color var(--transition);overflow-x:hidden}a{text-decoration:none;color:var(--primary);transition:color var(--transition)}a:hover{color:var(--dark-green)}img{max-width:100%;height:auto}h1,h2,h3,h4,h5,h6{color:var(--text);line-height:1.3;font-weight:700}h1{font-size:3rem}h2{font-size:2.2rem}h3{font-size:1.5rem}h4{font-size:1.2rem}p{margin-bottom:1rem;line-height:1.8}.container{max-width:1200px;margin:0 auto;padding:0 20px}section{padding:80px 0}.glass-card{background:var(--card-bg);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid var(--card-border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:all var(--transition);overflow:hidden}.glass-card:hover{border-color:var(--primary)}@media 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var(--transition);font-size:.95rem}.main-nav a:hover,.main-nav a.active{color:var(--primary);background:var(--light-green)}body.dark-mode .main-nav a:hover,body.dark-mode .main-nav a.active{background:rgb(16 185 129 / .15)}.header-actions{display:flex;align-items:center;gap:12px}.dark-mode-toggle{background:var(--input-bg);border:1px solid var(--input-border);border-radius:50px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1.2rem;transition:all var(--transition);color:var(--text);font-size:0}.dark-mode-toggle::before{content:"\1F319";font-size:1.2rem}body.dark-mode .dark-mode-toggle::before{content:"\2600\FE0F"}[data-theme-toggle]{font-size:0!important;text-indent:-9999px;overflow:hidden;position:relative}[data-theme-toggle]::before{content:"\1F319";font-size:1.2rem;text-indent:0;position:absolute;inset:0;display:flex;align-items:center;justify-content:center}body.dark-mode 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var(--transition);background:var(--input-bg);margin-bottom:20px}.file-upload-area:hover,.file-upload-area.drag-over{border-color:var(--primary);background:rgb(16 185 129 / .05)}.file-upload-area .upload-icon{font-size:3rem;margin-bottom:12px;display:block;opacity:.5}.file-upload-area p{font-size:.95rem;opacity:.7;margin-bottom:0}.file-upload-area .browse-btn{color:var(--primary);font-weight:600;text-decoration:underline}.tool-input-group{margin-bottom:20px}.tool-input-group label{display:block;font-weight:600;margin-bottom:8px;font-size:.95rem}.tool-input{width:100%;padding:12px 16px;border-radius:var(--radius-sm);border:1px solid var(--input-border);background:var(--input-bg);color:var(--text);font-family:var(--font);font-size:1rem;transition:all var(--transition);outline:none}.tool-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgb(16 185 129 / 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24px;border-radius:var(--radius);background:#1f2937!important;color:#ffffff!important;font-size:.95rem;font-weight:600;box-shadow:0 10px 40px rgb(0 0 0 / .4);animation:toastIn 0.3s ease;pointer-events:auto;min-width:250px;max-width:400px;border:1px solid rgb(255 255 255 / .1)}body.dark-mode .toast{background:#1f2937!important}.toast.success{border-left:4px solid #10b981}.toast.error{border-left:4px solid #ef4444}.toast.info{border-left:4px solid #3b82f6}.toast.removing{animation:toastOut 0.35s ease forwards}@keyframes toastIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes toastOut{to{opacity:0;transform:translateY(20px)}}