:root{--primary: #0f172a;--primary-hover: #1e293b;--accent: #3b82f6;--bg-color: #f1f5f9;--card-bg: #ffffff;--text-main: #1e293b;--text-muted: #64748b;--border: #e2e8f0;--error: #ef4444;--success: #10b981;--radius: 12px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,sans-serif;background-color:var(--bg-color);background-image:radial-gradient(#cbd5e1 1px,transparent 1px);background-size:24px 24px;margin:0;padding:20px;display:flex;justify-content:center;align-items:center;min-height:100vh;color:var(--text-main)}.secure-card{background:var(--card-bg);border-radius:var(--radius);box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f,0 20px 25px -5px #0000000d;padding:48px;width:100%;max-width:480px;text-align:center;border:1px solid var(--border);position:relative;overflow:hidden;transition:all .3s ease}.secure-card:before{content:"";position:absolute;top:0;left:0;right:0;height:6px;background:linear-gradient(90deg,var(--primary) 0%,var(--accent) 100%)}.secure-card.expanded{max-width:600px}.icon-wrapper{background:#eff6ff;color:var(--accent);width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 24px}.icon-wrapper svg{width:32px;height:32px}h1{font-size:24px;font-weight:700;margin:0 0 8px;color:var(--primary)}p{color:var(--text-muted);font-size:15px;margin:0 0 32px;line-height:1.5}.input-group{position:relative;margin-bottom:24px}.code-input{width:100%;box-sizing:border-box;padding:16px;font-size:20px;font-family:Courier New,monospace;font-weight:600;text-align:center;border:2px solid var(--border);border-radius:8px;letter-spacing:.5em;transition:all .2s ease;color:var(--primary);background:#f8fafc}.code-input:focus{outline:none;border-color:var(--accent);background:#fff;box-shadow:0 0 0 4px #3b82f61a}.code-input::placeholder{color:#cbd5e1;letter-spacing:normal;font-family:Inter,sans-serif;font-size:16px}.code-input.error{border-color:var(--error)}.submit-btn{width:100%;background:var(--primary);color:#fff;border:none;padding:16px;font-size:16px;font-weight:600;border-radius:8px;cursor:pointer;transition:background .2s;display:flex;justify-content:center;align-items:center;gap:8px}.submit-btn:hover{background:var(--primary-hover)}.submit-btn:disabled{background:var(--text-muted);cursor:not-allowed}.error-message{color:var(--error);font-size:14px;margin-top:16px;font-weight:500;min-height:20px;display:flex;align-items:center;justify-content:center;gap:6px;opacity:0;transition:opacity .2s}.error-message.visible{opacity:1}.security-footer{margin-top:32px;font-size:12px;color:#94a3b8;display:flex;align-items:center;justify-content:center;gap:6px}.uploader-wrapper{animation:fadeIn .5s ease-out}.verified-badge{margin-bottom:20px;color:var(--success);font-weight:600;display:flex;align-items:center;justify-content:center;gap:8px}uc-file-uploader-regular{--uc-primary: var(--primary)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.spinner{border:2px solid rgba(255,255,255,.3);border-radius:50%;border-top:2px solid #fff;width:16px;height:16px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}