*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;scroll-behavior:smooth}:root{--primary-color:#3B82F6;--primary-hover:#2563EB;--error-color:#DC2626;--success-color:#16A34A;--border-color:#E5E7EB;--text-color:#1F2937;--text-light:#6B7280;--bg-color:#F9FAFB;--card-bg:#FFFFFF;--hover-bg:#F3F4F6;--shadow-soft:0 4px 20px rgba(59,130,246,0.08);--shadow-medium:0 8px 32px rgba(59,130,246,0.12)}body{background:var(--bg-color);color:var(--text-color);font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;margin:0;padding:0;line-height:1.6;width:100%;overflow-x:hidden}.header{background:#fff;border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:40}.header-content{max-width:1280px;margin:0 auto;padding:1rem 1.5rem;display:flex;align-items:center;justify-content:center}.header-logo{display:flex;align-items:center;gap:0.75rem}.header-logo img{width:2rem;height:2rem}.header-logo h1{font-size:1.25rem;font-weight:700;color:#111827;margin:0}.main-content{max-width:1280px;margin:0 auto;padding:2rem 1.5rem}.grid-container{display:grid;grid-template-columns:1fr;gap:2rem}@media(min-width:1024px){.grid-container{grid-template-columns:1fr 1fr;gap:3rem}}.card{background:#fff;border-radius:1rem;box-shadow:0 1px 3px rgba(0,0,0,0.1);padding:1.5rem}.card-header{display:flex;align-items:center;justify-content:center;flex-direction:column;margin-bottom:1.5rem}.card-icon{width:4rem;height:4rem;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:1rem}.card-title{font-size:1.25rem;font-weight:600;margin:0;text-align:center}.btn{display:inline-flex;align-items:center;justify-content:center;padding:0.75rem 1.5rem;border-radius:0.75rem;font-weight:600;transition:all 0.2s;cursor:pointer;border:none}.btn-primary{background:linear-gradient(135deg,#10b981,#22c55e);color:white}.btn-primary:hover{transform:scale(1.05);box-shadow:0 4px 12px rgba(16,185,129,0.3)}.textarea{width:100%;padding:0.75rem;border:2px solid var(--border-color);border-radius:0.75rem;font-family:monospace;resize:vertical}.textarea:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 3px rgba(59,130,246,0.1)}.progress-bar{width:100%;height:0.5rem;background:var(--border-color);border-radius:9999px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,#3b82f6,#1d4ed8);transition:width 0.3s ease}.spinner{animation:spin 1s linear infinite}@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}@keyframes glow{from{box-shadow:0 0 20px -10px currentColor}to{box-shadow:0 0 20px -5px currentColor}}.modern-glass{backdrop-filter:blur(16px);background:rgba(255,255,255,0.8);border:1px solid rgba(255,255,255,0.3)}.language-selector{position:relative;display:inline-block}.language-btn{background:var(--hover-bg);border:none;cursor:pointer;display:flex;align-items:center;gap:6px;font-size:14px;color:var(--text-color);padding:6px 12px;border-radius:8px;transition:all 0.2s}.language-btn:hover{background:var(--hover-bg)}.language-dropdown{display:none;position:absolute;top:100%;right:0;background:var(--card-bg);border-radius:12px;box-shadow:0 4px 6px -1px rgba(0,0,0,0.2);margin-top:8px;min-width:180px;padding:8px;z-index:1000;border:1px solid var(--border-color)}.language-selector.active .language-dropdown{display:block}.dropdown-item{width:100%;text-align:left;padding:8px 16px;border:none;background:none;color:var(--text-color);font-size:14px;cursor:pointer;border-radius:6px;transition:all 0.2s;display:block;text-decoration:none}.dropdown-item:hover{background:var(--hover-bg);color:var(--primary-color)}.dropdown-item.active{background:var(--primary-color);color:white}/* Screen reader only class */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:768px){.header-content{flex-direction:column;gap:16px;padding:12px}.main-content{padding:0;max-width:100%}.grid-container{grid-template-columns:1fr;gap:1rem}}