:root{--bg-color: #0f172a;--text-color: #f8fafc;--text-muted: #94a3b8;--card-bg: rgba(30, 41, 59, .7);--card-border: rgba(255, 255, 255, .1);--accent-color: #3b82f6;--accent-hover: #2563eb;--success-color: #10b981;--error-color: #ef4444}*{margin:0;padding:0;box-sizing:border-box;font-family:Outfit,sans-serif}body{background-color:var(--bg-color);color:var(--text-color);min-height:100vh;display:flex;flex-direction:column;align-items:center;position:relative;overflow-x:hidden}.background-effects{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;pointer-events:none}.glow-orb{position:absolute;border-radius:50%;filter:blur(100px);opacity:.5;animation:float 20s infinite ease-in-out alternate}.orb-1{width:400px;height:400px;background:#3b82f6;top:-100px;left:-100px}.orb-2{width:500px;height:500px;background:#a855f7;bottom:-200px;right:-100px;animation-delay:-10s}@keyframes float{0%{transform:translate(0) scale(1)}to{transform:translate(50px,50px) scale(1.1)}}#app{width:100%;max-width:800px;padding:2rem;display:flex;flex-direction:column;gap:3rem}header{text-align:center;margin-top:2rem}.logo{display:flex;align-items:center;justify-content:center;gap:.5rem;margin-bottom:.5rem}.logo h1{font-size:2.5rem;font-weight:800;background:linear-gradient(to right,#60a5fa,#c084fc);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.lightning{font-size:2rem}.subtitle{color:var(--text-muted);font-size:1.1rem;letter-spacing:1px;margin-bottom:1.5rem}.highlights{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}.highlight-badge{background:#3b82f626;color:#93c5fd;padding:.5rem 1rem;border-radius:9999px;font-size:.95rem;font-weight:600;border:1px solid rgba(59,130,246,.3);box-shadow:0 4px 6px -1px #0000001a;display:flex;align-items:center;gap:.35rem}.converter-card{background:var(--card-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--card-border);border-radius:24px;padding:3rem 2rem;text-align:center;box-shadow:0 25px 50px -12px #00000080;transition:transform .3s ease,border-color .3s ease;position:relative;min-height:350px;display:flex;flex-direction:column;justify-content:center;align-items:center}.converter-card.dragover{border-color:var(--accent-color);transform:scale(1.02);background:#3b82f61a}.hidden{display:none!important}.drop-content{display:flex;flex-direction:column;align-items:center;gap:1rem;width:100%}.icon-group{background:#ffffff0d;padding:20px;border-radius:50%;margin-bottom:1rem;color:#60a5fa}.supports-text{color:var(--text-muted);font-size:.9rem}.btn{padding:.75rem 1.5rem;border-radius:9999px;border:none;font-weight:600;font-size:1rem;cursor:pointer;transition:all .2s ease;text-decoration:none;display:inline-block}.browse-btn{background:#ffffff1a;color:#fff;border:1px solid rgba(255,255,255,.2);margin-top:1rem}.browse-btn:hover{background:#fff3}.primary-btn{background:var(--accent-color);color:#fff}.primary-btn:hover{background:var(--accent-hover);transform:translateY(-2px)}.secondary-btn{background:transparent;color:var(--text-muted);border:1px solid var(--text-muted)}.secondary-btn:hover{background:#ffffff0d;color:#fff}.loading-state{display:flex;flex-direction:column;align-items:center;gap:1.5rem}.spinner{width:50px;height:50px;border:4px solid rgba(255,255,255,.1);border-left-color:var(--accent-color);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.success-state{display:flex;flex-direction:column;align-items:center;gap:1rem}.success-circle{background:#10b98133;color:var(--success-color);padding:1rem;border-radius:50%;margin-bottom:.5rem}.actions{display:flex;gap:1rem;margin-top:1.5rem}.error-state{display:flex;flex-direction:column;align-items:center;gap:1.5rem}.error-circle{background:#ef444433;color:var(--error-color);padding:1rem;border-radius:50%}#error-message{color:var(--error-color)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;margin-top:2rem}.feature{background:#1e293b66;padding:1.5rem;border-radius:16px;border:1px solid rgba(255,255,255,.05)}.feature h3{margin-bottom:.5rem;color:#60a5fa;font-size:1.1rem}.feature p{color:var(--text-muted);font-size:.9rem;line-height:1.5}@media (max-width: 600px){.actions{flex-direction:column}}