*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.auth-card{background:#fff;border-radius:20px;box-shadow:0 20px 40px rgba(0,0,0,.1);padding:40px;width:100%;max-width:400px;animation:slideUp .5s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.form-group{margin-bottom:20px}.form-label{display:block;margin-bottom:8px;color:#374151;font-weight:500;font-size:14px}.form-input{width:100%;padding:12px 16px;border:2px solid #e5e7eb;border-radius:10px;font-size:16px;transition:all .3s ease;outline:none}.form-input:focus{border-color:#667eea;box-shadow:0 0 0 3px rgba(102,126,234,.1)}.btn{width:100%;padding:14px;border:none;border-radius:10px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;text-transform:uppercase;letter-spacing:.5px}.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(102,126,234,.3)}.btn-secondary{background:transparent;color:#667eea;border:2px solid #667eea;margin-top:10px}.btn-secondary:hover{background:#667eea;color:#fff}.auth-toggle{text-align:center;margin-top:20px;color:#6b7280}.auth-toggle button{background:none;border:none;color:#667eea;cursor:pointer;text-decoration:underline;font-size:14px}.success-message{background:#10b981;color:#fff;padding:15px;border-radius:10px;text-align:center;margin-bottom:20px;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.8}}